{"id":1666,"date":"2019-12-20T00:00:33","date_gmt":"2019-12-20T00:00:33","guid":{"rendered":"https:\/\/www.langir.com\/?p=1666"},"modified":"2025-09-17T16:09:05","modified_gmt":"2025-09-17T16:09:05","slug":"dc-circuit-breaker","status":"publish","type":"post","link":"https:\/\/www.langir.com\/de\/dc-circuit-breaker\/","title":{"rendered":"DC-Leistungsschalter - Miniatur-Leistungsschalter f\u00fcr die Gleichstrom- und Solarstromerzeugung"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_video_widget wpb_content_element vc_clearfix   vc_video-aspect-ratio-169 vc_video-el-width-100 vc_video-align-left\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 class=\"wpb_heading wpb_video_heading\">Solar Circuit Breakers: The difference between DC and AC breakers<\/h2>\n\t\t\t<div class=\"wpb_video_wrapper\"><iframe title=\"Solar Circuit Breakers: The difference between DC and AC breakers\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/d0r9tOP69KM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h2 style=\"color: #000000;text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >DC Circuit Breaker - Miniature Circuit Breakers for DC and Solar Generation<\/h2><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-8\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>The JB is a DC circuit breaker dedicated to multi string photovoltaic installations.<br \/>\nThis circuit breaker is designed to protect the cables located between each string of photovoltaic modules and the photovoltaic inverter against overloads and short circuits.<br \/>\nCombined with a switch , the JB will be installed in a string PV protection enclosure at the end of each string of photovoltaic modules.<br \/>\nIt can be locked (by a padlocking device) in OFF position as a safety measure for removal of the PV inverter.<br \/>\nSince a fault current can flow in the reverse direction to the operating current, the JB can detect and protect against any bidirectional current.<br \/>\nTo ensure the safety of the installation, it is necessary, depending on the various types of application, to combine the JB with:<\/p>\n<p style=\"padding-left: 40px;\">a residual current device at the AC end<\/p>\n<p style=\"padding-left: 40px;\">a fault passage detector (insulation monitoring device) at the DC end<\/p>\n<p style=\"padding-left: 40px;\">an earth protection circuit breaker at the DC end<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-4\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center wpb_content_element\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"64\" height=\"64\" src=\"https:\/\/www.langir.com\/wp-content\/uploads\/2022\/06\/PDF.png\" class=\"vc_single_image-img attachment-full\" alt=\"Brochure\" title=\"Brochure\" sizes=\"(max-width: 34.9rem) calc(100vw - 2rem), (max-width: 53rem) calc(8 * (100vw \/ 12)), (min-width: 53rem) calc(6 * (100vw \/ 12)), 100vw\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n<h3 style=\"font-size: 18px;color: #f19901;text-align: center\" class=\"vc_custom_heading vc_do_custom_heading\" ><a href=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-tuv-certificate.pdf\" target=\"_blank\" title=\"DC Circuit Breaker\">brochure<\/a><\/h3><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h3 style=\"text-align: left;\"><span style=\"font-size: 12pt;\"><strong>NOTES<\/strong><\/span><\/h3>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<ul>\n<li>In all cases, fast action on site will be required to clear the fault (protection not ensured in the event of a double fault).<\/li>\n<li>JB is not polarity sensitive: (+) and (-) wires can be inverted without any risk.<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span style=\"font-size: 14pt;\"><strong>Meaning and Classification Models<\/strong><\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-9557 alignleft\" title=\"DC Circuit Breaker\" src=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-order-code.png\" alt=\"DC Circuit Breaker\" width=\"700\" height=\"250\" srcset=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-order-code.png 700w, https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-order-code-300x107.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span style=\"font-size: 14pt;\"><strong>Main Characteristics<\/strong><\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<table border=\"0\" width=\"100%\" cellspacing=\"1\" cellpadding=\"5\" bgcolor=\"#dcdcdc\">\n<tbody>\n<tr bgcolor=\"#f0f9ff\">\n<td>Operating Voltage (Ue)<\/td>\n<td>1P=250 V DC, 2P=500 V DC<br \/>\n3P=750 V DC, 4P=1000 V DC<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td>Rated insulation voltage (Ui)<\/td>\n<td>1,000 VDC<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td>Breaking capacity (Icu)<\/td>\n<td>10 kA<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td>Impulse voltage (Uimp)<\/td>\n<td>4 kA<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td>Electrical connection<\/td>\n<td>By the bottom for In and Out<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td>Number of poles<\/td>\n<td>1P, 2P, 3P, 4P<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td>Standards<\/td>\n<td>IEC 60947-2<br \/>\nEN 60947-2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span style=\"font-size: 14pt;\"><strong>Technical Data<\/strong><\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<ul style=\"list-style-type: square;\">\n<li>Position contact indication &#8211; suitability for isolation according to IEC\/EN 60947-2 standard.<\/li>\n<li>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.<\/li>\n<li>Increased product service life thanks to fast closing independent of the speed of actuation of the toggle.<\/li>\n<li>Pre-wired product: Input \/ Output on the same side.<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<table border=\"0\" width=\"100%\" cellspacing=\"1\" cellpadding=\"5\" bgcolor=\"#dcdcdc\">\n<tbody>\n<tr bgcolor=\"#f0f9ff\">\n<td colspan=\"2\">Rated service breaking capacity (Ics)<\/td>\n<td>100 % of the Icu<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td rowspan=\"2\">Endurance (O-C)<\/td>\n<td>Electrical<\/td>\n<td>1,500 cycles (where L\/R=2 ms)<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td>Mechanical<\/td>\n<td>20, 000 cycles<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td colspan=\"2\"><\/td>\n<td><\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td colspan=\"2\">Mechanical<\/td>\n<td>20, 000 cycles<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td colspan=\"2\">Degree of pollution<\/td>\n<td>2<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td colspan=\"2\">Category<\/td>\n<td>A (no delay in accordance with IEC \/ EN 60947-2 standards)<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td colspan=\"2\">Degree of protection<br \/>\n(IEC 60529)<\/td>\n<td>IP40<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td colspan=\"2\">Tropicalisation<\/td>\n<td>Relative humidity: 95 % at 55\u00b0C in accordance with<br \/>\nIEC 60068-2 and GB 14048.2 standards<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td rowspan=\"2\">Temperature<\/td>\n<td>Operating<\/td>\n<td>-25\u00b0C to 70 \u00b0C<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td>Storage<\/td>\n<td>-40\u00b0C to 85\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-8\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span style=\"font-size: 14pt;\"><strong>Curve<\/strong><\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img decoding=\"async\" class=\"size-full wp-image-9556 alignleft\" title=\"DC Circuit Breaker C curve\" src=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-c-curve.png\" alt=\"DC Circuit Breaker C curve\" width=\"760\" height=\"580\" srcset=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-c-curve.png 760w, https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-c-curve-300x229.png 300w\" sizes=\"(max-width: 760px) 100vw, 760px\" \/><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9555 alignleft\" title=\"DC Circuit Breaker K curve\" src=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-k-curve.png\" alt=\"DC Circuit Breaker K curve\" width=\"760\" height=\"580\" srcset=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-k-curve.png 760w, https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-k-curve-300x229.png 300w\" sizes=\"(max-width: 760px) 100vw, 760px\" \/><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-4\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span style=\"font-size: 14pt;\"><strong>Instantaneous Trip<\/strong><\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><strong>B Curve<\/strong><br \/>\nThese MCBs are suitable for cable protection.<br \/>\nRating: 1-63A(30\u2103)<br \/>\nInstantaneous trip: (3-5)In<br \/>\n<strong>C Curve<\/strong><br \/>\nSuitable Domestic and residential applications and electromagnetic starting loads with<br \/>\nmedium starting currents.<br \/>\nRating: 1-63A(30\u2103)<br \/>\nInstantaneous trip: (7-10)In<br \/>\n<strong>D Curve<\/strong><br \/>\nSuitable for inductive and motor loads with high starting currents.<br \/>\nRating: 1-63A\uff0830\u2103)<br \/>\nInstantaneous trip: (10-14)In<br \/>\n<strong>K Curve<\/strong><br \/>\nSuitable for inductive and motor loads with high inrush currents.<br \/>\nRating: 1-63A(30\u2103)<br \/>\nInstantaneous trip: (14-18)In<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span style=\"font-size: 14pt;\"><strong>Wiring Diagram<\/strong><\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9561 alignleft\" title=\"DC Circuit Breaker Diagrams\" src=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-diagrams.png\" alt=\"DC Circuit Breaker Diagrams\" width=\"1000\" height=\"700\" srcset=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-diagrams.png 1000w, https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-diagrams-300x210.png 300w, https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-diagrams-768x538.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span style=\"font-size: 14pt;\"><strong>Installation<\/strong><\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9560 alignleft\" title=\"DC Circuit Breaker Installation\" src=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-installation.png\" alt=\"DC Circuit Breaker Installation\" width=\"1000\" height=\"380\" srcset=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-installation.png 1000w, https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-installation-300x114.png 300w, https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-installation-768x292.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span style=\"font-size: 14pt;\"><strong>Dimensions (mm)<\/strong><\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9559 alignleft\" title=\"DC Circuit Breaker Dimensions\" src=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-dimensions.png\" alt=\"DC Circuit Breaker Dimensions\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-dimensions.png 500w, https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-dimensions-300x240.png 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span style=\"font-size: 14pt;\"><strong>Weight (g)<\/strong><\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<table border=\"0\" width=\"100%\" cellspacing=\"1\" cellpadding=\"5\" bgcolor=\"#dcdcdc\">\n<tbody>\n<tr bgcolor=\"#f0f9ff\">\n<td colspan=\"5\" bgcolor=\"#f0f9ff\">Circuit breaker<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td bgcolor=\"#f0f9ff\">Type<\/td>\n<td align=\"center\" bgcolor=\"#f0f9ff\">1P<\/td>\n<td align=\"center\" bgcolor=\"#f0f9ff\">2P<\/td>\n<td align=\"center\" bgcolor=\"#f0f9ff\">3P<\/td>\n<td align=\"center\" bgcolor=\"#f0f9ff\">4P<\/td>\n<\/tr>\n<tr bgcolor=\"#FFFFFF\">\n<td>Weight (g)<\/td>\n<td align=\"center\">120<\/td>\n<td align=\"center\">240<\/td>\n<td align=\"center\">360<\/td>\n<td align=\"center\">480<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span style=\"font-size: 14pt;\"><strong>Connection<\/strong><\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9558 alignleft\" title=\"DC Circuit Breaker Connection\" src=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-connection.png\" alt=\"DC Circuit Breaker Connection\" width=\"1000\" height=\"280\" srcset=\"https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-connection.png 1000w, https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-connection-300x84.png 300w, https:\/\/www.langir.com\/wp-content\/uploads\/2019\/12\/dc-circuit-breaker-connection-768x215.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n<div class=\"vc-zigzag-wrapper vc-zigzag-align-center\"><div class=\"vc-zigzag-inner\" style=\"width: 100%;min-height: 14px;background: 0 repeat-x url(&#039;data:image\/svg+xml;utf-8,%3C%3Fxml%20version%3D%221.0%22%20encoding%3D%22utf-8%22%3F%3E%3C%21DOCTYPE%20svg%20PUBLIC%20%22-%2F%2FW3C%2F%2FDTD%20SVG%201.1%2F%2FEN%22%20%22http%3A%2F%2Fwww.w3.org%2FGraphics%2FSVG%2F1.1%2FDTD%2Fsvg11.dtd%22%3E%3Csvg%20width%3D%2214px%22%20height%3D%2212px%22%20viewBox%3D%220%200%2018%2015%22%20version%3D%221.1%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20xmlns%3Axlink%3D%22http%3A%2F%2Fwww.w3.org%2F1999%2Fxlink%22%3E%3Cpolygon%20id%3D%22Combined-Shape%22%20fill%3D%22%23ebebeb%22%20points%3D%228.98762301%200%200%209.12771969%200%2014.519983%209%205.40479869%2018%2014.519983%2018%209.12771969%22%3E%3C%2Fpolygon%3E%3C%2Fsvg%3E&#039;);\"><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_video_widget wpb_content_element vc_clearfix   vc_video-aspect-ratio-169 vc_video-el-width-100 vc_video-align-center\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 class=\"wpb_heading wpb_video_heading\">AC Vs DC Circuit Breakers: The importance of the DC ARC Extinguisher<\/h2>\n\t\t\t<div class=\"wpb_video_wrapper\"><iframe title=\"AC Vs DC Circuit Breakers: The importance of the DC ARC Extinguisher\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/jDsIhecJ8lc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/div>\n\t\t<\/div>\n\t<\/div>\n\n<div class=\"vc-zigzag-wrapper vc-zigzag-align-center\"><div class=\"vc-zigzag-inner\" style=\"width: 100%;min-height: 14px;background: 0 repeat-x url(&#039;data:image\/svg+xml;utf-8,%3C%3Fxml%20version%3D%221.0%22%20encoding%3D%22utf-8%22%3F%3E%3C%21DOCTYPE%20svg%20PUBLIC%20%22-%2F%2FW3C%2F%2FDTD%20SVG%201.1%2F%2FEN%22%20%22http%3A%2F%2Fwww.w3.org%2FGraphics%2FSVG%2F1.1%2FDTD%2Fsvg11.dtd%22%3E%3Csvg%20width%3D%2214px%22%20height%3D%2212px%22%20viewBox%3D%220%200%2018%2015%22%20version%3D%221.1%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20xmlns%3Axlink%3D%22http%3A%2F%2Fwww.w3.org%2F1999%2Fxlink%22%3E%3Cpolygon%20id%3D%22Combined-Shape%22%20fill%3D%22%23ebebeb%22%20points%3D%228.98762301%200%200%209.12771969%200%2014.519983%209%205.40479869%2018%2014.519983%2018%209.12771969%22%3E%3C%2Fpolygon%3E%3C%2Fsvg%3E&#039;);\"><\/div><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><strong><span style=\"font-size: 14pt;\">FAQs<\/span><\/strong><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"font-size: 18px;text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >What is a DC Circuit Breaker?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><p>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.<\/p>\n<p>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 <a href=\"https:\/\/www.langir.com\/din-rail\/\" target=\"_blank\" rel=\"noopener\">DIN rails<\/a> and vertical surfaces.<\/p>\n<p>Today&#8217;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&#8217;s DC Circuit Breaker for efficient and safe protection of your DC electrical systems.<\/p>\n<\/div><\/div><div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"font-size: 18px;text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >What is the difference between circuit breakers and fuses?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><ul style=\"list-style-type: disc;\">\n<li><strong>Principle:<\/strong> Fuses use a wire that melts to break the circuit during overcurrent, while circuit breakers use a switch or trip mechanism.<\/li>\n<li><strong>Resetting:<\/strong> Fuses are one-time-use and need replacement, while circuit breakers can be manually or automatically reset.<\/li>\n<li><strong>Response Time:<\/strong> Fuses have a faster response time than circuit breakers.<\/li>\n<li><strong>Reusability:<\/strong> Fuses are disposable, while circuit breakers can be reused multiple times.<\/li>\n<li><strong>Sensitivity:<\/strong> Fuses are more sensitive to overcurrent, while circuit breakers have adjustable settings.<\/li>\n<li><strong>Application:<\/strong> Circuit breakers offer more flexibility and can protect against both overcurrent and short circuits.<\/li>\n<\/ul>\n<\/div><\/div><div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"font-size: 18px;text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >What are the applications of Langir's DC Circuit Breaker?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><ul>\n<li><strong>Railway:<\/strong> 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\u00a0optimizing energy usage.<\/li>\n<li><strong>Power System:<\/strong>\u00a0DC Circuit Breakers are essential for safe and reliable power systems, especially in solar energy. These breakers detect and isolate faults, protecting\u00a0<a title=\"Photovoltaic Research | NREL\" href=\"https:\/\/www.nrel.gov\/pv\/\" target=\"_blank\" rel=\"noopener\">PV panels<\/a> from overcurrent conditions and maximizing system efficiency. Langir&#8217;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.<\/li>\n<li><strong>Home: <\/strong>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.<\/li>\n<li><strong>Office Building:\u00a0<\/strong>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.<\/li>\n<\/ul>\n<\/div><\/div><div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"font-size: 18px;text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >How to choose suitable dc circuit breakers?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><ul>\n<li><strong>Voltage Rating: <\/strong>Determine the maximum voltage of your DC system. Ensure that the circuit breaker&#8217;s voltage rating matches or exceeds your system voltage to ensure proper protection.<\/li>\n<li><strong>Current Rating:<\/strong> 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.<\/li>\n<li><strong>Trip Curve:<\/strong> 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.<\/li>\n<li><strong>Breaking Capacity:<\/strong> 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.<\/li>\n<li><strong>Mounting Type:<\/strong> 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.<\/li>\n<li><strong>Additional Features:<\/strong> Consider any additional features that may be required for your specific application, such as auxiliary contacts, remote tripping capabilities, or status indicators.<\/li>\n<li><strong>Compliance and Certifications:<\/strong> Verify that the chosen circuit breaker complies with relevant industry standards and certifications to ensure safety and reliability.<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n<div class=\"vc-zigzag-wrapper vc-zigzag-align-center\"><div class=\"vc-zigzag-inner\" style=\"width: 100%;min-height: 14px;background: 0 repeat-x 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