Tag: pushbutton switch

  • DC Circuit Breaker – Miniature Circuit Breakers for DC and Solar Generation

    DC Circuit Breaker – Miniature Circuit Breakers for DC and Solar Generation

    Solar Circuit Breakers: The difference between DC and AC breakers

    DC Circuit Breaker – Miniature Circuit Breakers for DC and Solar Generation

    The JB is a DC circuit breaker dedicated to multi string photovoltaic installations. This circuit breaker is designed to protect the cables located between each string of photovoltaic modules and the photovoltaic inverter against overloads and short circuits. Combined with a switch, the JB will be installed in a string PV protection enclosure at the end of each string of photovoltaic modules.

    IEC 60947-2, EN60947-2, GB 14048.2

    Meaning and Classification Models

    Main Characteristics

    Operating Voltage (Ue): 1P=250 V DC, 2P=500 V DC, 3P=750 V DC, 4P=1000 V DC
    Rated insulation voltage (Ui): 1,000 VDC
    Breaking capacity (Icu): 10 kA
    Impulse voltage (Uimp): 4 kA
    Electrical connection: By the bottom for In and Out
    Number of poles: 1P, 2P, 3P, 4P
    Standards: IEC 60947-2, EN 60947-2

    Technical Data

    • Position contact indication — suitability for isolation according to IEC/EN 60947-2 standard.
    • The presence of the green strip guarantees physical opening of the contacts and allows operations to be performed on the downstream circuit in complete safety.
    • Increased product service life thanks to fast closing independent of the speed of actuation of the toggle.

    Curve

    Instantaneous Trip

    B Curve — These MCBs are suitable for cable protection. Rating: 1-63A(30°C). Instantaneous trip: (3-5)In.

    C Curve — Suitable for domestic and residential applications and electromagnetic starting loads with medium starting currents. Rating: 1-63A(30°C). Instantaneous trip: (5-10)In.

    D Curve — Suitable for inductive and motor loads with high starting currents. Rating: 1-63A(30°C). Instantaneous trip: (10-20)In.

    K Curve — Suitable for motor loads with high inrush currents. Rating: 1-63A(30°C). Instantaneous trip: (10-14)In.

    Wiring Diagram

    Installation

    Dimensions (mm)

    Weight (g)

    Circuit breaker Type: 1P=120g, 2P=240g, 3P=360g, 4P=480g

    Connection

    AC Vs DC Circuit Breakers: The importance of the DC ARC Extinguisher

    FAQs

    DC Circuit Breaker offers reliable protection for DC electrical installations, safeguarding against overloads and short circuits. In the event of a fault, the circuit breaker automatically disconnects the electrical circuit, preventing wire damage and reducing the risk of fire. It also allows for manual opening under full-rated load during electrical maintenance.

    The circuit breaker is designed for reversible connection, accommodating bidirectional current flow. Clear markings on the handle provide easy identification of the contact position. With a versatile design, it can be easily installed on both standard DIN rails and vertical surfaces.

    Today’s DC circuit breakers have expanded applications including solar photovoltaics, electric vehicle charging stations, battery storage and UPS systems, as well as commercial and industrial DC distribution. Trust Langir’s DC Circuit Breaker for efficient and safe protection of your DC electrical systems.

    • Principle: Fuses use a wire that melts to break the circuit during overcurrent, while circuit breakers use a switch or trip mechanism.
    • Resetting: Fuses are one-time-use and need replacement, while circuit breakers can be manually or automatically reset.
    • Response Time: Fuses have a faster response time than circuit breakers.
    • Reusability: Fuses are disposable, while circuit breakers can be reused multiple times.
    • Sensitivity: Fuses are more sensitive to overcurrent, while circuit breakers have adjustable settings.
    • Application: Circuit breakers offer more flexibility and can protect against both overcurrent and short circuits.
    • Railway: DC circuit breakers are crucial for ensuring safety and reliability of power systems in railways. These breakers are capable of quickly detecting faults in circuits and cutting off the current to prevent damage to electrical equipment or potential fires. In railway systems, DC circuit breakers can also assist with controlling the operation and stopping of trains, as well as optimizing energy usage.
    • Power System: DC Circuit Breakers are essential for safe and reliable power systems, especially in solar energy. These breakers detect and isolate faults, protecting PV panels from overcurrent conditions and maximizing system efficiency. Langir’s DC Circuit Breaker (JB) can be applied to grounded or ungrounded systems and meets higher voltage and lower fault current levels of solar systems.
    • Home: DC Breakers are an essential safety feature for home electrical systems. These breakers protect against overcurrent conditions that can lead to electrical fires and equipment damage. In addition, they can help homeowners optimize energy usage by monitoring and controlling the flow of electricity.
    • Office Building: DC Breakers are commonly used in office buildings for a variety of applications, such as protecting electrical panels and equipment, controlling lighting and HVAC systems, and managing emergency power systems. They are also a crucial component of renewable energy systems, such as solar panels and wind turbines.
    • Voltage Rating: Determine the maximum voltage of your DC system. Ensure that the circuit breaker’s voltage rating matches or exceeds your system voltage to ensure proper protection.
    • Current Rating: Identify the maximum current that your DC circuit can handle. Choose a circuit breaker with a current rating that matches or exceeds the maximum current of your system.
    • Trip Curve: Consider the desired trip curve, which determines how quickly the circuit breaker will trip in response to an overload or short circuit. Different applications may require different trip curves based on the level of protection needed.
    • Breaking Capacity: Evaluate the breaking capacity or interrupting rating of the circuit breaker. It indicates the maximum fault current that the breaker can safely interrupt without damage. Ensure that the breaking capacity meets or exceeds the fault current of your DC system.
    • Mounting Type: Determine the suitable mounting type for your application. DC circuit breakers are commonly available in panel-mount, DIN rail-mount, or surface-mount configurations. Choose the one that fits your installation requirements.
    • Additional Features: Consider any additional features that may be required for your specific application, such as auxiliary contacts, remote tripping capabilities, or status indicators.
    • Compliance and Certifications: Verify that the chosen circuit breaker complies with relevant industry standards and certifications to ensure safety and reliability.

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  • Anti-vandal 16mm Push Button Switch (L16 Series)

    Anti-vandal 16mm Push Button Switch (L16 Series)

    DescriptionApplicationsFunctionsOrder CodeTechnical DataDescriptionsActuator/Panel CutoutIlluminated OptionsDimensionFAQ

    Anti-vandal 16mm Push Button Switch (L16 Series)

    The L16 Series anti-vandal 16mm push button switch is available with ingress protection ratings of IP40 (non-water resistant) or IP67 (dust and water resistant) while having a long life expectancy. It is meant for mounting in a panel cutout of 16mm in diameter. LED illumination options include a dot or ring, with a bi-color option available. They also come with a black anodized finish option.

    • Non-sealed (IP40) and sealed (IP67) options
    • 16mm diameter panel cutout
    • Dot and ring illumination options available
    • 1 or 2 poles; maintained (latching), momentary pushbuttons

    Applications

    • Kiosk and ticket dispensers
    • Industrial controls
    • Medical equipment
    • Security devices
    • Audio/visual
    • Electrical housewares

    Functions

    l19a anti vandal switch functions

    Order Code

    l16 anti vandal switch code

    Notes:

    * Base voltage on LEDs: 1.8V @ 20mA for Red, Yellow and Orange LED colors / 2.8V @ 20mA for Blue, Green and White LED colors

    Technical Data

    Type L16-F L16-F-R L16-F-D
    Illuminated Options Non-Illuminated Ring Illuminated Dot Illuminated
    Max. Panel Thickness: 0.394″ (10.0mm)
    Terminal Solder lug (2.8 x 0.5)
    Max. Switch Rating Ith: 5A Ui: 250VAC
    Contact Resistance ≤50mΩ
    Insulation Resistance ≥1000mΩ
    Dielectric Strengh 2000VAC
    Operation Temp. -20°C ~ +55°C
    Mechanical Life 1,000,000cycles
    Electrical Life >50,000cycles
    Contact Material Silver Alloy
    Torque 5 ~ 14Nm
    Operation Pressure approx. 3 ~ 8N
    Protection IP65/ IK10
    Material Actuator Stainless Steel/ Anodized Aluminum
    Body Stainless Steel/ Anodized Aluminum
    Base PA
    Color Type LED (ratings @ 20mA)
    Color Red Yellow Orange Green Blue White
    Luminous Intensity (mcd) 160 200 150 520 220 2000
    Forward Volatge 1.8~2.6 2.8~3.6
    Illumination Voltage no suffix No resistor fitted. An appropriate resistor must be series connected by the user. Voltages as above.
    3.3V/ 6V/ 12V/ 24V/ 36V/ 110V/ 230V
    Life Approx. 40, 000hours

    Descriptions

    l16 anti vandal switch descriptions

    Notes:

    C = Common
    NO = Normally open
    NC = Normally closed

    Terminals (-) and (+) used with Illum. option only

    Actuator Options & Panel Cutout

    l16 anti vandal switch actuator panel cutout

    Illuminated Options

    l16 anti vandal switch illum options

    Dimension

    l16 anti vandal switch dimensions

    FAQs

    An anti-vandal 16mm push button switch is a durable and compact switch designed to resist tampering and physical abuse. It features a 16mm button size and is available in IP40 (non-sealed) and IP67 (sealed) options, with dot or ring LED illumination for clear status indication.

    The L16 features IP67-rated sealing for dust and water resistance, stainless steel or anodized aluminum construction with IK10 impact protection, and an operating temperature range of -20°C to +55°C. The mechanical life rating of 1,000,000 cycles ensures long-term reliability.

    With IK10 anti-vandal rating, robust stainless steel actuator, and tamper-resistant design, the L16 prevents damage from deliberate abuse. The compact 16mm panel cutout and multiple illumination options suit kiosks, ticket dispensers, and security devices.

    Yes. The L16 supports both momentary and maintained (latching) operation, with 1 or 2 pole configurations available.

    The L16 accommodates panel thicknesses up to 0.394 inches (10.0mm). The threaded bushing design with 5~14Nm torque rating ensures secure mounting.

    Yes. Manufactured under ISO9001 and ISO14001 certified quality systems, with CE certification, RoHS and REACH compliance. Each switch undergoes 2000VAC dielectric strength testing.

    Kiosk and ticket dispensing, industrial controls, medical equipment, security devices, audio/visual equipment, and electrical housewares.

    The L16 operates reliably from -20°C to +55°C. Silver alloy contacts and polycarbonate lens maintain performance across this range.

    Yes. Available in SPST and DPDT with 1 or 2 poles. Switch rating: Ith 5A, Ui 250VAC. LED voltages: 3.3V, 6V, 12V, 24V, 36V, 110V, 230V.

    Yes. Custom actuator style (flat/raised), terminal type, LED color (Red, Yellow, Orange, Green, Blue, White) with bi-color options, anodized finishes, and laser-etched symbols available.

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  • L16T Anti Vandal Push Button Switch

    L16T Anti Vandal Push Button Switch

    DescriptionFunctionsOrder CodeTechnical DataTerminalsActuator OptionsIlluminated OptionsPanel CutoutDimensionFAQ

    L16T Anti Vandal Push Button Switch

    L16T anti vandal push button switch is suitable for harsh conditions and can withstand possible malicious damage. With transient action triggering, it is ideal for access control and access control applications such as elevators, emergency buttons, parking management systems, emergency phones, vending machines and food handling. L16T anti vandal push button switch has rugged design combines with a variety of styles, enhances its design and manufacturing integration services, provides a high flexibility. Also, it has high quality solution for our numerous industry users, so as to meet their design requirements for control panel.

    • Backlit option
    • RGB LED illumination option
    • Long life, high reliability led push button
    • IP65 rated for dust and moisture protection
    • Multiple function options
    • Dot, ring or symbol illumination available

    Functions

    l16t l19t anti vandal switch functions

    Order Code

    l16t anti vandal switch code

    Notes:

    * Base voltage on LEDs: 1.8V @ 20mA for Red, Yellow and Orange LED colors / 2.8V @ 20mA for Blue, Green and White LED colors

    * 3A colors: LED polarity selection

    Technical Data

    Type L16T
    Illuminated Options Non-Illuminated/ Ring Illuminated/ Dot Illuminated/ Backlit
    Max. Panel Thickness: Max. 0.394″ (10.0mm)
    Kind Single-pole on-off Switch
    Certification ISO9001, CE, ISO14001
    Transport Package Carton
    Usage Control Button, Start Button, Control Switch
    Specification 42x23x32cm
    Terminal Solder lug (1.8X0.4)
    Max. Switch Rating Ith: 3A Ui: 250VAC
    Contact Resistance ≤50mΩ
    Insulation Resistance ≥1000mΩ
    Dielectric Strengh 2000VAC
    Operation Temp. -20°C ~ +55°C
    Mechanical Life 500,000cycles(max)
    Electrical Life 30,000cycles(min)
    Contact Material Silver Alloy
    Torque 5~14Nm
    Operation Pressure approx. 3~5N
    Protection IP65/ IK09
    Material Switch Assembly UL94V-0 rated Polyamide (Nylon)
    Tags Copper Alloy
    Terminals Copper Alloy
    Switch Body & Actuator Stainless Steel/ Anodized Aluminum
    Lens and Lens Body Polycarbonate
    Internal Seal Silicone
    O Ring Nitrile
    Color Type LED (ratings @ 20mA)
    Color Red Yellow Orange Green Blue White
    Luminous Intensity (mcd) 160 200 150 520 220 2000
    Forward Volatge 1.8~2.6 2.8~3.6
    Illumination Voltage no suffix No resistor fitted. An appropriate resistor must be series connected by the user. Voltages as above.
    3.3V/ 6V/ 12V/ 24V/ 36V/ 110V/ 220V
    Life Approx. 40, 000hours

    Terminals

    l16t l19t anti vandal switch terminal

    Notes:

    C = Common
    NO = Normally open
    NC = Normally closed

    Terminals (-) and (+) used with Illum. option only

    Actuator Options

    l16t l19t l22t anti vandal switch actuator

    Illuminated Options

    l16t anti vandal switch illum options

    Panel Cutout

    l16t anti vandal switch panelcut

    Dimension

    l16t anti vandal switch dimensions

    FAQs

    An anti-vandal LED push button is a durable switch designed for demanding environments, providing both reliability and visual feedback through its integrated LED illumination. Engineered with robust materials like stainless steel, these switches resist physical impacts and tampering.

    Superior durability with stainless steel construction, high impact resistance, IP65 weatherproof seals, and up to 500,000 cycle electrical life. The L16T adds RGB LED, multiple actuator styles, and customizable LED voltages.

    Public access systems (elevators, intercoms, parking meters), industrial control panels, medical equipment, security systems, marine applications, and kiosks. The L16T’s 16mm panel cutout suits compact control interfaces.

    Stainless steel actuators and housings resist prying, scratching, and impact. The L16T’s flush actuator design minimizes exposed surfaces, with IK09 protection and 500,000 cycle mechanical life.

    Yes. The L16T carries an IP65 rating — dust-tight and protected against water jets. Its stainless steel construction resists corrosion, and LED illumination remains visible in direct sunlight.

    Non-illuminated, ring illumination, dot illumination, and backlit options. LED colors: red, yellow, orange, green, blue, white, with RGB multi-color. Voltages: 2.8V to 220V. 3A color option for LED polarity selection.

    Rated Ith: 3A, Ui: 250VAC. Contact resistance ≤50mΩ, insulation resistance ≥1000mΩ. Dielectric strength: 2000VAC. Electrical life: 30,000 cycles (min). Mechanical life: 500,000 cycles (max).

    Stainless steel housing and button. Switch body: UL94V-0 rated Polyamide (Nylon). Base: PA66. Tags/Terminals: Copper Alloy. Lens: Polycarbonate. Internal seal: Silicone. O-ring: Nitrile. Silver Alloy contacts.

    Access control and security, parking management, industrial automation, medical devices, food processing, marine and yacht controls, public transportation, vending and kiosk manufacturing.

    Custom LED configurations, laser etching for symbols, OEM/ODM manufacturing, sample availability, technical documentation (CAD files, datasheets), and dedicated account management. ISO9001 and ISO14001 certified.

  • 22mm Piezo Switch

    22mm Piezo Switch

    DescriptionKey FeaturesTechnical DataAdvantagesFrequently Asked Questions

    Description

    The Piezo waterproof push button switch is part of the PZ series including models with dia. 12. 16, 19, 22, 25 or 30mm bushing. Sealed to IP68 or IP69K, easy to clean metal surface, long life (50 million cycles), ring illumination, custom configurations. Get A Quote

    Key Features

    • Easy to clean metal surface
    • Long life (50 million cycles)
    • Ring or Dot illumination
    • Sealed to IP68 or IP69K (switch mounted on panel)

    Technical Data

    Electrical Data
    Functions Momentary / Latching
    Contact Arrangement SPST N.O. / SPST N.C.
    Pulse Duration 125 – 300mS
    Voltage 1 – 24V AC/DC
    Switching Current 0.2A /1A
    Rated Breaking Capacity 1W
    Operating Cycles >50,000,000
    Switch Resistance OFF > 5 MΩ
    Switch Resistance ON < 20 Ω
    Capacity 30pF
    Contact Configuration Free polarity
    Illumination Non-illum./ Illum.
    Mechanical Data
    Material Aluminium 6061 T651/ Stainless Steel 316L
    Actuating Force 3 – 5N
    Connection Wires
    Actuating Travel 0.002mm
    Shock Protection IK 06
    Fastening Torque 2.5Nm
    Anodize Colors Gold / Red / Blue / Black / Green / Natural
    Environmental Data
    Operating Temperature -40°C to 75°C std.
    IP Protection IP69K (front and back)

    Advantages

    As a leading waterproof push button switch supplier, Langir offers Piezo switches with solid-state output, ensuring a lifespan of over 50 million cycles. Ideal for demanding applications, these switches feature a fully sealed flat actuation surface, preventing liquid or contaminant intrusion, making them perfect for medical and food-processing environments. With high-performance IP68 and IP69K sealing from one-piece construction, no external power supply is needed. The screw-machined metal housing and Langir’s vertical integration enable the production of various shapes.

    Frequently Asked Questions

    A piezo waterproof push button switch is a type of switch that uses a piezoelectric material to generate an electrical signal when pressure is applied to the button. It is designed to be waterproof, meaning it can be used in environments where moisture or liquids may be present without causing damage.

    The switch contains a piezoelectric element that converts mechanical pressure into an electrical signal. When the button is pressed, it deforms the piezoelectric material, generating a voltage. This voltage can be used to trigger a circuit or control a device.

    Piezo waterproof push button switches offer several advantages, including:

    Waterproof and moisture-resistant, making them suitable for use in outdoor or wet environments.
    Durable and long-lasting, with no mechanical parts that can wear out.
    Vandal-resistant, as they are difficult to damage or tamper with.
    Can be used in a wide range of temperatures.
    No audible click or noise when pressed, making them suitable for quiet environments.

    These switches are commonly used in various applications, such as industrial control panels, medical equipment, marine electronics, automotive dashboards, outdoor equipment, and more. Their waterproof and durable nature makes them ideal for environments where moisture, dust, or vandalism may be a concern.

    Yes, many manufacturers offer customization options for these switches, such as different colors, shapes, sizes, and even custom markings or labels. It’s best to check with the specific manufacturer or supplier for available customization options.

    Yes, these switches are designed to be compatible with standard electrical systems and can be easily integrated into existing circuits or devices. They typically have standard electrical terminals or connectors for easy installation.

    Yes, they are safe to use when installed and used according to the manufacturer’s instructions. However, it is always important to follow proper safety practices and consult with a professional if you have specific safety concerns or requirements.

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  • 25mm Piezo Switch

    25mm Piezo Switch

    DescriptionKey FeaturesTechnical DataAdvantagesMechanics

    Description

    These piezoelectric sensor switches are part of the PZ series including models with dia. 12. 16, 19, 22, 25 or 30mm bushing. Sealed to IP68 or IP69K, easy to clean metal surface, long life (50 million cycles), ring illumination, custom configurations. Get A Quote

    Key Features

    • Easy to clean metal surface
    • Long life (50 million cycles)
    • Ring or Dot illumination
    • Sealed to IP68 or IP69K (switch mounted on panel)

    Technical Data

    Electrical Data
    FunctionsMomentary / Latching
    Contact ArrangementSPST N.O. / SPST N.C.
    Pulse Duration 125 – 300mS
    Voltage1 – 24V AC/DC
    Switching Current0.2A /1A
    Rated Breaking Capacity1W
    Operating Cycles>50,000,000
    Switch Resistance OFF> 5 M
    Switch Resistance ON< 20
    Capacity30pF
    Contact ConfigurationFree polarity
    IlluminationNon-illum./ Illum.
    Mechanical Data
    MaterialAluminium 6061 T651/ Stainless Steel 316L
    Actuating Force3 – 5N
    ConnectionWires
    Actuating Travel0.002mm
    Shock ProtectionIK 06
    Fastening Torque2.5Nm
    Anodize ColorsGold / Red / Blue / Black / Green / Natural
    Environmental Data
    Operating Temperature-40°C to 75°C std.
    IP ProtectionIP69K (front and back)

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  • L19T Anti Vandal Switch

    L19T Anti Vandal Switch

    DescriptionKey FeaturesFunctionsOrder CodeTechnical DataTerminalsActuatorIlluminatedPanel Cutout DimensionFAQ

    Description

    The L19T anti-vandal waterproof switch is designed to endure harsh conditions and resist tampering. It is ideal for access control applications such as elevators, emergency buttons, parking management systems, emergency phones, vending machines, and food handling. With its rugged design and various styles, it offers flexible design and manufacturing integration services. It provides high-quality solutions to meet the control panel design requirements of various industries.

    Key Features

    • Backlit option
    • RGB LED illumination option
    • Long life, high reliability waterproof switch
    • IP65 rated for dust and moisture protection
    • Multiple function options
    • Dot, ring or symbol illumination available

    Functions

    L16T, L19T functions

    Order Code

    L19T Anti vandal switch

    Technical Data

    Type L19T
    Illuminated Options Non-Illuminated/ Ring Illuminated/ Dot Illuminated/ Backlit
    Max. Panel Thickness: Max. 0.394″ (10.0mm)
    Kind: Single-pole on-off Switch
    Certification: ISO9001, CE, ISO14001
    Transport Package: Carton
    Usage: Control Button, Start Button, Control Switch
    Terminal Solder lug (1.8X0.4)
    Max. Switch Rating Ith: 3A Ui: 250VAC
    Contact Resistance ≤50mΩ
    Insulation Resistance ≥1000mΩ
    Dielectric Strengh 2000VAC
    Operation Temp. -20°C ~ +55°C
    Mechanical Life 500,000cycles(max)
    Electrical Life 30,000cycles(min)
    Contact Material Silver Alloy
    Torque 5~14Nm
    Operation Pressure approx. 3~5N
    Protection IP65/ IK09
    Material Switch Assembly UL94V-0 rated Polyamide (Nylon)
    Tags Copper Alloy
    Terminals Copper Alloy
    Switch Body & Actuator Stainless Steel/ Anodized Aluminum
    Lens and Lens Body Polycarbonate
    Internal Seal Silicone
    O Ring Nitrile
    Color Type LED (ratings @ 20mA)
    Color RED Yellow Orange Green Blue White
    Luminous Intensity (mcd) 160 200 150 520 220 2000
    Forward Volatge 1.8~2.6 2.8~3.6
    Illumination Voltage no suffix No resistor fitted. An appropriate resistor must be series connected by the user. Voltages as above.
    3.3V/ 6V/ 12V/ 24V/ 36V/ 110V/ 220V
    Life Approx. 40, 000hours

    Terminals

    L16T and L19T Anti vandal switch

    Actuator Options

    L16T, L19T and L22T actuator options

    Illuminated Options

    L19T Anti vandal switch

    Panel Cutout

    L19T Anti vandal switch

    Dimension

    L19T Anti vandal switch

    Frequently Asked Questions

    A 19mm Anti-vandal Switch is a compact, rugged switch designed to resist tampering and withstand harsh environments. Its durable construction ensures reliable operation in demanding settings like access control, emergency systems, and outdoor applications where longevity and security are critical.

    The L19T stands out with its IP65 rating for water and dust protection, IK09 impact resistance, and the availability of various illumination options including backlit and RGB LEDs. Combined with a stainless steel or anodized aluminum body, it offers exceptional durability and visual flexibility for diverse use cases.

    This switch supports currents up to 3 amps at 250VAC with a contact resistance below 50mΩ. It offers a mechanical lifespan of up to 500,000 cycles and an electrical lifespan starting at 30,000 cycles, ensuring dependable performance over extended use.

    Yes, the L19T features sealing elements such as silicone internal seals and nitrile O-rings to achieve its IP65 rating. This means it is protected against dust and water jets, making it suitable for outdoor installations and environments exposed to moisture.

    Customers can choose from non-illuminated, dot, ring, backlit, and even RGB LED illumination styles, plus different actuator shapes and materials to best match their design needs and lighting preferences.

    The L19T switch supports a range of illumination voltages from 3.3V to 220V and features solder lug terminals suitable for secure electrical connections, offering compatibility and ease of integration in various control systems.

    It requires about 3 to 5 newtons of pressure to actuate, providing a balanced tactile feedback that prevents accidental activation while ensuring comfortable operation.

    Absolutely, the switch is built with robust materials such as stainless steel and copper alloy tags, and designed to resist mechanical impacts up to IK09 rating. This resilience protects it from vandalism and accidental damage in high-use public areas.

    Industries like elevator control systems, parking management, emergency phones, vending machines, and food processing all benefit from the L19T’s reliability, waterproof capabilities, and flexible design options.

    Langir provides technical consultancy, OEM customization, competitive minimum order quantities, timely delivery, and responsive aftersales assistance to ensure your business operates smoothly and your customers receive consistent quality.

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  • Emergency Stop Switch

    Emergency Stop Switch

    Description

    Emergency Stop Switches

    The Turn to Release Emergency Stop Switch provides you with a way to stop your actuator instantly in case of emergency. All you do is press the button down and it will lock in the Off position, stopping the movement of your actuator. To put it back in the On position, just turn the switch clockwise to release it. Please be aware you may require a relay for actuator control.

    Emergency Stop SwitchEmergency Stop SwitchEmergency Stop SwitchEmergency Stop SwitchEmergency Stop Switch

    Key Features

    • 16, 19 or 22mm diameter panel cutout
    • Push lock – Turn Release
    • 1NO1NC, 2NO2NC
    • IP65 rated
    • Soldered wire leads optional

    Specifications

    Max. Rating5A, 250VAC
    Switching Rating0.5A, 250VAC
    Mechanical Life1,000,000 Cycles
    Electrical Life50,000 Cycles
    Contact Resistance50mΩ Max.
    Insulation Resistance1000 MΩ Min.
    Dielectric Strength2,000VAC
    Operating/Storage Temperature-20°C to 55°C
    Panel Thickness1-5mm
    Mounting Nut Torque5-14Nm

    Order Code

    Emergency Stop Switch Order Code

    Dimensions

    ES16

    ES16 Dimensions

    ES19

    ES19 Smooth EdgeES19 Knurled Edge

    ES22

    ES22 Smooth EdgeES22 Knurled Edge

    Frequently Asked Questions

    The Emergency Stop Switch is available in 16mm (ES16), 19mm (ES19), and 22mm (ES22) diameter panel cutouts.

    Available configurations include 1NO1NC and 2NO2NC to suit various control circuit requirements.

    The Emergency Stop Switch is IP65 rated, providing protection against dust and water jets.

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  • Ultra Short Anti-Vandal Switch

    Ultra Short Anti-Vandal Switch

    DescriptionKey FeaturesSpecificationsOrder CodeDimensionsFAQ

    Description

    The L12U, L16U, L19U, L22U, and L25U Low Profile Anti-vandal switches are button switches with anti-damaged functions.

    The panel openings are 12mm, 16mm, 19mm, 22mm, and 25mm in diameter and IP67.

    It offers a variety of options, such as ring lighting, stainless steel housing materials, and many LED color options, and can provide laser etching. For convenience, you can also choose to add wires.

    Key Features

    • 12, 16, 19, 22 or 25mm diameter panel cutout
    • Ring illumination available
    • IP67 rated
    • Soldered wire leads optional

    Specifications

    Specification
    Electrical Rating 50mA, 12VDC
    Mechanical Life 1,000,000 Cycles
    Electrical Life 50,000 Cycles
    Contact Resistance 50mΩ Max.
    Insulation Resistance 1000 MΩ Min.
    Dielectric Strength 2,000VAC
    Operating/Storage Temperature -20°C to 55°C
    Travel 0.5mm
    Protection IP67
    Actuation Force 4N
    Panel Thickness 1-3mm

    Order Code

    Ultra Short Anti-vandal switch

    Dimensions

    L12U

    L12U Dimensions

    L16U

    L16U Dimensions

    L19U

    L19U Dimensions

    L22U

    L22U Dimensions

    L25U

    L25U Dimensions

    FAQ

    Langir’s low profile anti-vandal switches are designed to withstand harsh environments, offering superior durability and resistance to tampering. Their compact design ensures they fit seamlessly into tight spaces, making them ideal for industrial applications where space is a premium.

    Langir employs rigorous testing and quality control processes to ensure the durability and reliability of its low profile push button switches. These switches are built with high-quality materials and are tested for performance under extreme conditions, ensuring they meet the demands of high-usage environments.

    Yes, Langir offers customization services for anti-vandal switches, allowing clients to specify design, materials, and branding requirements. Our engineering team works closely with customers to develop switches that meet their unique needs, ensuring both functionality and aesthetic appeal.

    Langir’s custom switches are designed with flexibility and adaptability in mind, making them suitable for a wide range of B2B applications. We offer various customization options, including size, shape, illumination, and actuation force, ensuring our switches can meet the specific requirements of different industries.

    Langir prioritizes understanding the unique needs of B2B clients by offering tailored solutions and dedicated support. We provide personalized consultation, prototyping, and custom manufacturing services to ensure our switches align with our clients’ specific applications and operational requirements.

    Langir’s low profile anti-vandal switches stand out due to their robust construction, compact design, and customizable options. These switches are engineered for high performance and reliability, with features like water resistance, long lifespan, and tamper-proof design, setting them apart from competitors.

    Yes, Langir provides comprehensive technical support and consultation services. Our experienced engineers assist clients in integrating our switches into complex systems, ensuring optimal performance and seamless integration. We offer guidance from the initial design phase through to post-installation support.

    Langir is committed to maintaining compliance with all relevant industry standards and regulations. Our switch products undergo stringent testing and certification processes to ensure they meet international standards, providing our clients with reliable and compliant solutions.

    Langir implements rigorous quality control measures at every stage of production. Our quality assurance team conducts thorough inspections and testing, including environmental, mechanical, and electrical performance tests, to ensure each switch meets our high standards for consistency and reliability.

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  • Square Bezel Anti-Vandal Switch

    Square Bezel Anti-Vandal Switch

    Description

    The square bezel anti-vandal switch with vandal-proof features. It provides a unique aesthetic feature of a 25mm square bezel over the standard round bezel. The panel cutout size is 19mm and 22mm in diameter. It provides IP65 rating for dust and moisture protection. This switch offers multiple options such as ring illumination, single-pole or double-pole circuits, stainless steel housing material, and many LED illumination options, including RGB. The Square Bezel Anti Vandal Switch is available with either a momentary or a maintained (latching) function. It can also be supplied with a laser etched power symbol. You can also add wire leads 300mm in length.

    Key Features

    • 19mm or 22mm diameter panel cutout
    • RGB LED illumination option
    • Dot, ring or symbol illumination available
    • IP65 rated for dust and moisture protection
    • Multiple function options
    • SPDT & DPDT
    • Soldered wire leads (300mm long) optional

    Specifications

    Electrical Rating 5A, 250AC
    Mechanical Life 1,000,000 Cycles
    Electrical Life 50,000 Cycles
    Contact Resistance 50mΩ Max.
    Insulation Resistance 1000 MΩ Min.
    Dielectric Strength 2,000VAC
    Operating/Storage Temperature -20°C to 55°C
    Travel 1.50mm
    Moisture Protection IP65
    Actuation Force 4N
    Panel Thickness 1-11mm
    Mounting Nut Torque5-14Nm

    Order Code

    Order Code

    Notes:
    * Base voltage on LEDs: 1.8V @ 20mA for Red, Yellow and Orange LED colors / 2.8V @ 20mA for Blue, Green and White LED colors
    ** 3A is only for functions 1NO1NC(SPDT)

    Functions

    Illuminated Options

    Panel Cutout

    Panel Cutout

    Terminal

    Terminal

    Notes:

    C = Common
    NO = Normally open
    NC = Normally closed
    Terminals (-) and (+) used with Illum. option only

    Dimensions

    L19S

    L19S Dimensions

    L22S

    L22S Dimensions

    FAQ

    A square bezel anti-vandal switch is a robust switch featuring a square-shaped outer frame. It is designed to resist vandalism, provide enhanced durability, and ensure reliable operation in demanding environments.

    The RGB LED illumination in the switch allows for customizable and vibrant lighting options. It enhances visibility, provides status indication, and adds aesthetic appeal to the switch.

    An IP65 rating indicates that the switch is dust-tight and protected against low-pressure water jets from any direction. It offers reliable performance even in harsh environmental conditions.

    SPDT (Single Pole, Double Throw) and DPDT (Double Pole, Double Throw) refer to the switch’s contact configurations. SPDT has one common terminal and two switchable terminals, while DPDT has two separate sets of contacts. This allows for different switching options based on the application requirements.

    They find applications in various industries, including industrial control systems, transportation, gaming machines, public facilities, and security systems, where durability and tamper resistance are crucial.

    They comply with industry standards and certifications like CE, RoHS, and ISO. These certifications ensure adherence to safety, environmental, and quality requirements.

    Yes, the square bezel design contributes to the sealing and protection of the anti-vandal switch. It helps to create a secure and tight seal between the switch and the panel, ensuring reliable performance and resistance to dust, moisture, and other environmental factors.

    Yes, It’s designed for easy cleaning and maintenance. Its smooth surface and durable materials allow for simple wiping or cleaning with commonly used cleaning agents, ensuring optimal performance over time.

    Yes, the square bezel design ensures a secure and stable mounting for the anti-vandal switch. Its square shape provides increased stability, minimizing any potential movement or rotation of the switch within the panel.

    Yes, they are available in various sizes and configurations to accommodate different panel and application requirements. Consult Langir for specific customization options.

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  • L19T Anti Vandal Switch

    L19T Anti Vandal Switch

    Description

    The L19T anti-vandal waterproof switch is designed to endure harsh conditions and resist tampering. It is ideal for access control applications such as elevators, emergency buttons, parking management systems, emergency phones, vending machines, and food handling. With its rugged design and various styles, it offers flexible design and manufacturing integration services. It provides high-quality solutions to meet the control panel design requirements of various industries. Get A Quote

    Technical Data

    Type L19T
    Illuminated Options Non-Illuminated/ Ring Illuminated/ Dot Illuminated/ Backlit
    Max. Panel Thickness: Max. 0.394″ (10.0mm)
    Kind: Single-pole on-off Switch
    Certification: ISO9001, CE, ISO14001
    Transport Package: Carton
    Usage: Control Button, Start Button, Control Switch
    Terminal Solder lug (1.8X0.4)
    Max. Switch Rating Ith: 3A Ui: 250VAC
    Contact Resistance ≤50mΩ
    Insulation Resistance ≥1000mΩ
    Dielectric Strengh 2000VAC
    Operation Temp. -20°C ~ +55°C
    Mechanical Life 500,000cycles(max)
    Electrical Life 30,000cycles(min)
    Contact Material Silver Alloy
    Torque 5~14Nm
    Operation Pressure approx. 3~5N
    Protection IP65/ IK09
    Material Switch Assembly UL94V-0 rated Polyamide (Nylon)
    Tags Copper Alloy
    Terminals Copper Alloy
    Switch Body & Actuator Stainless Steel/ Anodized Aluminum
    Lens and Lens Body Polycarbonate
    Internal Seal Silicone
    O Ring Nitrile
    Color Type LED (ratings @ 20mA)
    Color RED Yellow Orange Green Blue White
    Luminous Intensity (mcd) 160 200 150 520 220 2000
    Forward Volatge 1.8~2.6 2.8~3.6
    Illumination Voltage no suffix No resistor fitted. An appropriate resistor must be series connected by the user. Voltages as above.
    3.3V/ 6V/ 12V/ 24V/ 36V/ 110V/ 220V
    Life Approx. 40, 000hours

    Key Features

    • Backlit option
    • RGB LED illumination option
    • Long life, high reliability waterproof switch
    • IP65 rated for dust and moisture protection
    • Multiple function options
    • Dot, ring or symbol illumination available

    Functions

    Functions

    Order Code

    Order Code
    redyelloworangegreenbluewhite

    Notes:
    * Base voltage on LEDs: 1.8V @ 20mA for Red, Yellow and Orange LED colors / 2.8V @ 20mA for Blue, Green and White LED colors
    * 3A colors: LED polarity selection

    Terminals

    Notes:
    C = Common
    NO = Normally open
    NC = Normally closed
    Terminals (-) and (+) used with Illum. option only

    Actuator Options

    Illuminated Options

    Panel Cutout

    Panel Cutout

    Dimension

    L19T Anti vandal switch

    Frequently Asked Questions

    A 19mm Anti-vandal Switch is a compact, rugged switch designed to resist tampering and withstand harsh environments. Its durable construction ensures reliable operation in demanding settings like access control, emergency systems, and outdoor applications where longevity and security are critical.

    The L19T stands out with its IP65 rating for water and dust protection, IK09 impact resistance, and the availability of various illumination options including backlit and RGB LEDs. Combined with a stainless steel or anodized aluminum body, it offers exceptional durability and visual flexibility for diverse use cases.

    This switch supports currents up to 3 amps at 250VAC with a contact resistance below 50mΩ. It offers a mechanical lifespan of up to 500,000 cycles and an electrical lifespan starting at 30,000 cycles, ensuring dependable performance over extended use.

    Yes, the L19T features sealing elements such as silicone internal seals and nitrile O-rings to achieve its IP65 rating. This means it is protected against dust and water jets, making it suitable for outdoor installations and environments exposed to moisture.

    Customers can choose from non-illuminated, dot, ring, backlit, and even RGB LED illumination styles, plus different actuator shapes and materials to best match their design needs and lighting preferences.

    The L19T switch supports a range of illumination voltages from 3.3V to 220V and features solder lug terminals suitable for secure electrical connections, offering compatibility and ease of integration in various control systems.

    It requires about 3 to 5 newtons of pressure to actuate, providing a balanced tactile feedback that prevents accidental activation while ensuring comfortable operation.

    Absolutely, the switch is built with robust materials such as stainless steel and copper alloy tags, and designed to resist mechanical impacts up to IK09 rating. This resilience protects it from vandalism and accidental damage in high-use public areas.

    Industries like elevator control systems, parking management, emergency phones, vending machines, and food processing all benefit from the L19T’s reliability, waterproof capabilities, and flexible design options.

    Langir provides technical consultancy, OEM customization, competitive minimum order quantities, timely delivery, and responsive aftersales assistance to ensure your business operates smoothly and your customers receive consistent quality.

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  • Backlit LED switch Label Kit

    Backlit LED switch Label Kit

    DescriptionKey FeaturesHow to Order5 ICON Labels Included50 ICON Labels Included1 ICON Label ListIcons Car DashboardFAQ

    Description

    • Multiple labels
    • Easy to change
    • Save the cost
    • Back printed for durability
    • Scratch resistant polycarbonate material
    • Waterproof adhesive for longevity in wet environments
    • Backlit anti vandal switch with light switch labels 16mm, 19mm and 22mm
    • Custom Icon Labels can be made to your design specifications
      Please check with the factory.

    Brochure

    Langir Backlit LED Light Switch Labels Kit

    When the Dual color LED function switches are turned on, the Blue LED lights up through the actuator.
    Activate a particular function by pressing one of the switches. This will change the Blue LED to Red, indicating that the chosen function is turned on. The switch color can customization.

    With a IP67 waterproof rating and Stainless Steel body our switch can be installed on your boat or other vehicle in wet and dusty environments, but not under water. The first switch can be designated as the night time Blue LED On/Off switch.

    Identifying the function of each push button switch is simple with our interchangeable 3M 300LSE adhesive backed actuator Backlit Labels. It’s the only actuator that allows the LEDs in the switch body to pass light through the label. The result is excellent visibility at night. There are 53 Switch Function Icons to choose from!

    Custom Backlit LED Light Switch Labels Kit can be made to your design specifications. Please check with the factory

    Key Features

    • Multiple labels
    • Easy to change
    • Save the cost
    • Back printed for durability
    • Scratch resistant polycarbonate material
    • Waterproof adhesive for longevity in wet environments
    • Backlit anti vandal switch with light switch labels 16mm, 19mm and 22mm
    • Custom Icon Labels can be made to your design specifications Please check with the factory.
    Backlit Label in Daytime Mode

    Backlit Label in Daytime Mode.
    LED light is off.

    Backlit LED - Blue LED Nighttime Mode

    Backlit Label in Nighttime Mode.
    The Blue LED provides great visibility of all the function switches and lets you know that the switches are in the off position.

    Backlit LED - Red LED Nighttime Mode

    Backlit Label in Nighttime Mode.
    The Red LED lets you know that the switch is on.

    How to Order

    How to Order

    UV Print*: Accept any custom icon UV Print direct in the switches

    5 ICON Labels Included

    5 ICON Labels

    50 ICON Labels Included

    50 ICON Labels

    1 ICON Label List

    1 ICON Label List

    Icons Car Dashboard

    Icons Car Dashboard
    Car Dashboard

    FAQ

    Light switch labels improve usability by providing clear identification of switches in low-light conditions.

    Yes, the labels make it suitable for boat switches, enhancing safety and navigation, especially in marine environments.

    Langir offers customizable options, allowing you to create switch labels tailored to your specific needs.

    The backlit LED light switch labels provide illumination, making it easier to locate and operate switches in the dark, making it ideal for nighttime applications.

    The labels in the kit are typically made from durable materials, designed to withstand environmental conditions, including moisture for boat switch labels.

    The installation process for the labels is generally straightforward. Refer to Langir’s guidelines or the kit’s instructions for easy installation on existing switches.

    Boat switch labels in the kit improve safety by ensuring clear identification of switches, reducing confusion and promoting proper operation during critical moments.

    While primarily designed for boats, the labels also make it suitable for certain automotive applications.

    Langir may provide various color choices for the kit’s labels, allowing you to select colors that align with your preferences or application needs.

    The backlit LED feature ensures that the labels remain visible, even in low-light conditions, enabling quick and accurate switch identification, especially useful for boating activities.

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  • L22O Rear Mounting Anti Vandal Switch

    L22O Rear Mounting Anti Vandal Switch

    DescriptionKey FeaturesSpecificationsOrder CodeDimensionFAQ

    Description

    L22O Rear mounting anti vandal switch provides a unique aesthetic feature for 22mm rear mounting. The panel hole size is thread M22X1.0, and the Protection for IP65/ IK09. It offers a variety of options, such as ring illumination, stainless steel housing material and LED color options. Laser welding and welding ear etching are also available for L22O rear mounting anti vandal switch. For convenience, you can also choose to add wire leads. Get A Quote

    Key Features

    • Micro-trip
    • Long life, high reliability
    • Anti-Vandal IK09/ Sealed IP65
    • Dot or ring illumination available

    Specifications

    L22O Anti Vandal Switch Functions
    TypeL22O
    Illuminated OptionsNon-Illuminated/ Ring Illuminated/ Dot Illuminated
    Max. Panel Thickness:Max. 0.394″ (10.0mm)
    TerminalScrew and Solder lug (2.8X0.8)
    Max. Switch Rating50mA 24VDC
    Contact Resistance≤100mΩ
    Insulation Resistance≥1000mΩ
    Dielectric Strengh2000VAC
    Operation Temp.-20°C ~ +55°C
    Mechanical Life1,000,000cycles(max)
    Electrical Life50,000cycles(min)
    Contact MaterialSilver Alloy
    Torque0.57Nm
    Operation Pressureapprox. 8N
    ProtectionIP65/ IK09
    MaterialSwitch AssemblyUL94V-0 rated Polyamide (Nylon)
    TagsCopper Alloy
    TerminalsCopper Alloy
    Switch Body & ActuatorStainless Steel/ Anodized Aluminum
    Lens and Lens BodyPolycarbonate
    Internal SealSilicone
    O RingNitrile

    Order Code

    L22O Rear Mounting Anti vandal switch

    Dimension

    L22O Rear Mounting Anti vandal switch

    Frequently Asked Questions

    A rear mounting anti vandal switch is a robust switch designed to be mounted from the rear of a panel or enclosure. It provides enhanced durability and resistance to vandalism or unauthorized use.

    An IP65 rating indicates that the switch is dust-tight and protected against low-pressure water jets from any direction. It ensures reliable operation in harsh environments.

    An IK09 rating indicates a high level of impact resistance. The L22O switch can withstand significant mechanical shocks and vandalism attempts without compromising functionality.

    The micro-trip feature refers to the highly sensitive triggering mechanism of the switch. It enables precise and reliable touch detection, offering enhanced user experience.

    The LED ring illumination provides visual feedback and improves visibility. It is designed to illuminate the switch area, making it easier to locate and operate.

    The rear mounting design offers a clean and seamless look on the front panel, minimizing the risk of tampering or damage. It also simplifies installation and maintenance processes.

    Yes, the rear mounting anti vandal switch is designed for easy retrofitting into existing panels or enclosures. Its compact design and versatile mounting options make it convenient to replace or upgrade switches without significant modifications.

    Yes, they are available in various sizes and configurations to accommodate different panel and application requirements. Contact Langir for specific customization options.

    No, the rear mounting feature does not compromise durability and reliability. It is specifically engineered to withstand challenging environments and resist vandalism attempts.

    The L22O switches from Langir comply with industry standards and certifications like CE, RoHS, and ISO. These certifications ensure adherence to safety, environmental, and quality requirements.

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