{"id":1061,"date":"2021-06-11T08:24:57","date_gmt":"2021-06-11T08:24:57","guid":{"rendered":"https:\/\/epa.de\/filter\/en\/?page_id=1061"},"modified":"2025-08-21T15:38:34","modified_gmt":"2025-08-21T13:38:34","slug":"leakage-current-compensation-leakcomp-1p","status":"publish","type":"page","link":"https:\/\/epa.de\/en\/lc\/products\/leakage-current-compensation-leakcomp-1p\/","title":{"rendered":"Leakage current compensation LEAKCOMP\u00ae 1P"},"content":{"rendered":"\n<div style=\"height:var(--wp--preset--spacing--60)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-epa-gray-100-to-200-gradient-background has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<div style=\"height:var(--wp--preset--spacing--70)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group alignwide extra-x-padding-xs is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns alignwide rounded mb-0 has-white-color has-primary-darker-15-to-primary-darker-30-gradient-background has-text-color has-background has-link-color wp-elements-235c394e7b1ac706ebb1b37defa6e66e is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\" style=\"box-shadow:var(--wp--preset--shadow--deep)\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group p-4 is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading has-text-align-left mb-0\">For safe and reliable single-phase applications!<\/h2>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--50)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--40)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">In industry, residual current circuit breakers (RCCB) are used more and more for personal and fire protection. The modern components in automation technology (such as frequency inverters, line filters, switched-mode power supplies, shielded motor cables, etc.) generate system-related leakage currents. These so-called \u201coperational\u201d leakage currents are recognized by the RCD protective devices as residual currents and so often lead to unsafe operating states or their shutdown. The RCD cannot distinguish between operational leakage currents and fault currents.<\/p>\n\n\n\n<p class=\"has-text-align-left mb-0 wp-block-paragraph\">The EPA LEAKCOMP\u00ae 1P compensates the operational leakage currents that occur in the system\/machine and thus prevents false tripping of residual current protective devices, which are caused by excessively high 50 Hz leakage currents. The functionality is given with all commercially available residual current circuit breakers of types A, F, B and B +.*<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group p-2 is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"youtube-video-embed\">\n\t<div class=\"ratio ratio-16x9\" class=\"wp-block-epa-am-epa-youtube-embed\">\n\t\t<div class=\"youtube-container\">\n\t\t\t<div class=\"youtube-player\" data-id=\"ulGMiVyoAoA\"><\/div>\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"yt-info\">\n\t\t<div class=\"yt-info\"><small><strong>Note:<\/strong> Clicking the play button <i class=\"bi bi-play-circle-fill\"><\/i> will establish a connection to the servers of YouTube and thus data will be transferred there. More information on this topic can be found in the <a href=\"https:\/\/epa.de\/en\/data-protection-declaration\" target=\"_blank\">data protection declaration<\/a>.<\/small><\/div>\t<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--70)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--70)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<h1><\/h1>\n<div class=\"wp-block-epa-am-epa-produkte\">\n    <div class=\"epa-block-products\" id=\"LEAKCOMP%C2%AE%201P\">\n        <div class=\"card border-0 rounded-0\">\n            <div class=\"card-body\">\n\n                <div class=\"row g-0\">\n                    <div class=\"col-md-4\"><img decoding=\"async\" src=\"https:\/\/epa.de\/en\/wp-content\/uploads\/sites\/2\/2025\/05\/product_LC1P-1024x768.jpg\" class=\"fluid img-thumbnail border border-primary rounded-0\" alt=\"Produktbild LEAKCOMP\u00ae 1P\"><\/div>                    <div class=\"col-md-8\">\n                        <div class=\"card-body\">\n                            <div class=\"product-sharing-options ps-2 pe-2 position-absolute top-0 end-0 m-2 bg-white rounded\">\n                                <a href=\"mailto:?subject=Sehen%20Sie%20sich%20LEAKCOMP%C2%AE%201P%20auf%20epa.de%20an%21&#038;body=Hier%20der%20Link%3A%20https%3A%2F%2Fepa.de%2Fen%2Flc%2Fproducts%2Fleakage-current-compensation-leakcomp-1p%2F%23LEAKCOMP%25C2%25AE%25201P\" target=\"blank\" class=\"me-2\"><i class=\"bi bi-envelope\"><\/i><\/a>\n                                <a href=\".\/#LEAKCOMP%C2%AE%201P\" target=\"blank\"><i class=\"bi bi-link-45deg\"><\/i><\/a>\n                            <\/div>\n\n                            <h3 class=\"card-title\">LEAKCOMP\u00ae 1P<\/h3>\n                            <p><p>Leakage current compensation for single-phase frequency inverters and servo drives<\/p><\/p>\n                            <ul class=\"list-group list-group-flush\"><li class=\"list-group-item\">Fix value compensation of operational leakage currents (adjustable up to 50 mA)<\/li><li class='list-group-item'>Can be used on RCCBs with a rated fault current I\u2206n = 30 mA or higher according to DIN VDE 0100-530<\/li><li class='list-group-item'>Integrated soft start function<\/li><li class='list-group-item'>Easy mounting on DIN rail<\/li><li class='list-group-item'>Compact housing<\/li><\/ul>                        <\/div>\n\n                        <!-- <div class=\"product-offset-border\"><\/div> -->\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n\n    <!-- Modal -->\n    <div class=\"modal modal-xl fade\" id=\"modal109003435\" tabindex=\"-1\" role=\"dialog\" aria-labelledby=\"exampleModalLongTitle\" aria-hidden=\"true\">\n        <div class=\"modal-dialog\" role=\"document\">\n            <div class=\"modal-content\">\n                <div 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aria-controls=\"collapse109003435\"><i class=\"bi bi-cloud-arrow-down-fill\"><\/i> Downloads for the product<\/button>\n        <button type=\"button\" class=\"btn btn-primary w-50 ms-1\" data-bs-toggle=\"modal\" data-bs-target=\"#modal109003435\" onclick=\"setProductName2modalForm109003435()\"><i class=\"bi bi-question-circle-fill\"><\/i> Request product<\/button>\n    <\/div>\n\n    <div class=\"table-container collapse mb-5\" id=\"collapse109003435\" style=\"margin-top: -2.5rem; marting-bottom: 2.5rem;\"><div class=\"rounded p-2 border border-dark\"><table class=\"table table-striped mb-0 pb-0 wp-block-epa-am-epa-produkte\"\"><thead class=\"table-dark\"><tr><th><i class=\"bi bi-file-earmark-fill\"> File<\/th><th class=\"filesize\"><i class=\"bi bi-hdd-fill\"><\/i> Size<\/th><\/tr><\/thead><tbody><tr class=\"foldername\"><td colspan=\"2\"><i class=\"oi oi-folder\"><\/i> <strong>Brochures <span>\u00bb<\/span> LC<\/strong><\/td><\/tr><tr><td class=\"filepath\"><i class=\"bi bi-arrow-return-right\"><\/i> <a href=\"\/download\/en\/01_Brochures\/01.03_LC\/EPA_LEAKCOMP_1P_Leakage_Current_Compensation_Brochure.pdf\">EPA_LEAKCOMP_1P_Leakage_Current_Compensation_Brochure.pdf<\/a><\/td><td class=\"filesize\">1.25 M<\/td><\/tr><tr class=\"foldername\"><td colspan=\"2\"><i class=\"oi oi-folder\"><\/i> <strong>Manuals <span>\u00bb<\/span> LC<\/strong><\/td><\/tr><tr><td class=\"filepath\"><i class=\"bi bi-arrow-return-right\"><\/i> <a href=\"\/download\/en\/04_Manuals\/04.03_LC\/EPA_LEAKCOMP_1P_Leakage_Current_Compensation_Instrution_User_Manual.pdf\">EPA_LEAKCOMP_1P_Leakage_Current_Compensation_Instrution_User_Manual.pdf<\/a><\/td><td class=\"filesize\">24.82 M<\/td><\/tr><tr class=\"foldername\"><td colspan=\"2\"><i class=\"oi oi-folder\"><\/i> <strong>CAD <span>\u00bb<\/span> Ableitstrom <span>\u00bb<\/span> LEAKCOMP<\/strong><\/td><\/tr><tr><td class=\"filepath\"><i class=\"bi bi-arrow-return-right\"><\/i> <a href=\"\/download\/en\/06_CAD\/06.03_Ableitstrom\/06.03.02_LEAKCOMP\/LEAKCOMP_1P.zip\">LEAKCOMP_1P.zip<\/a><\/td><td class=\"filesize\">1.63 M<\/td><\/tr><tr class=\"foldername\"><td colspan=\"2\"><i class=\"oi oi-folder\"><\/i> <strong>Certificates <span>\u00bb<\/span> LC<\/strong><\/td><\/tr><tr><td class=\"filepath\"><i class=\"bi bi-arrow-return-right\"><\/i> <a href=\"\/download\/en\/08_Certificates\/08.04_LC\/Certificate_EPA_LEAKCOMP_1P_Industriepreis2018_Best_of.pdf\">Certificate_EPA_LEAKCOMP_1P_Industriepreis2018_Best_of.pdf<\/a><\/td><td class=\"filesize\">80.69 K<\/td><\/tr><\/table><\/div><\/div><\/div>\n\n\n<div style=\"height:var(--wp--preset--spacing--80)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-stretch rounded extra-x-padding-xs has-primary-darker-15-color has-text-color has-background has-link-color wp-elements-069f5e11de1db746dc8af9cb9c41f462 is-layout-flow wp-block-column-is-layout-flow\" style=\"background:linear-gradient(90deg,#f6f7f7 0%,#dde0e2 100%);flex-basis:25%\">\n<div style=\"height:var(--wp--preset--spacing--60)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-left has-x-large-font-size\">The problem.<\/h2>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--50)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<div style=\"height:var(--wp--preset--spacing--40)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">The protective conductors in systems with servo drives and frequency inverters is not currentless.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Various measures (use of line filters, shielded motor cables, etc.) must be taken in order to meet CE conformity and the binding protection goals of the low-voltage, EMC and machine directive. Cable shields, interference suppression capacitors and motor windings represent parasitic capacitances. In a fault-free system state, operational leakage currents flow through these parasitic capacitances to the protective conductor or via other conductive parts to the earth potential.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Manufacturers and operators of devices and systems are fundamentally obliged to protect people against electric shock and to switch off sources of danger that could cause fires. Exactly these hazards can be caused by fault currents and must therefore be included in the safety considerations.<\/p>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\">For personal and fire protection in these systems, AC\/DC sensitive residual current circuit breakers with rated residual currents of 30 mA are used. These rated residual currents are reached or even exceeded in many electrical systems during normal operation. In the past, the response to such problems was the impermissible expansion\/bridging of the protective device or the lowering of the prescribed protective goals through the use of RCDs with higher rated residual currents (e.g. 300 mA instead of 30 mA).<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"786\" src=\"https:\/\/epa.de\/en\/wp-content\/uploads\/sites\/2\/2025\/05\/leakcomp_1p_ohne.png\" alt=\"\" class=\"wp-image-5812 size-full\" srcset=\"https:\/\/epa.de\/en\/wp-content\/uploads\/sites\/2\/2025\/05\/leakcomp_1p_ohne.png 1024w, https:\/\/epa.de\/en\/wp-content\/uploads\/sites\/2\/2025\/05\/leakcomp_1p_ohne-300x230.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--30)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Currents that are caused by insulation faults or by the human body (e.g. through contact) are fault currents. Only these currents should trigger the RCCB and lead to the shutdown of a system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This important distinction between operational leakage currents on the one hand and fault currents due to human contact or insulation problems on the other hand cannot be made by today\u2019s residual current protective devices. Therefore, unwanted shutdowns by the protective device very often occur without an actual fault. The consequences can be expensive downtimes and restart times as well as production scrap.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-stretch rounded extra-x-padding-xs has-primary-darker-15-color has-text-color has-background has-link-color wp-elements-65366cc46bfe96fb205bba0afb4e96db is-layout-flow wp-block-column-is-layout-flow\" style=\"background:linear-gradient(90deg,#f6f7f7 0%,#dde0e2 100%);flex-basis:25%\">\n<div style=\"height:var(--wp--preset--spacing--60)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-left extra-x-padding has-x-large-font-size\">The solution!<\/h2>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--50)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<div style=\"height:var(--wp--preset--spacing--40)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<p class=\"auto-hyphens has-medium-font-size wp-block-paragraph\">The leakage current compensation device LEAKCOMP\u00ae 1P is used in electrical systems or machines in which single-phase frequency inverters and\/or servo controllers are to be operated on residual current devices (RCD) or residual current circuit breakers (RCCB).<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"786\" src=\"https:\/\/epa.de\/en\/wp-content\/uploads\/sites\/2\/2025\/05\/leakcomp_1p_mit.png\" alt=\"\" class=\"wp-image-5811 size-full\" srcset=\"https:\/\/epa.de\/en\/wp-content\/uploads\/sites\/2\/2025\/05\/leakcomp_1p_mit.png 1024w, https:\/\/epa.de\/en\/wp-content\/uploads\/sites\/2\/2025\/05\/leakcomp_1p_mit-300x230.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--50)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The level of the compensation current can be set using a potentiometer in the front cover. The level of the compensation current can be increased by turning the potentiometer clockwise. With an optimal adjustment the compensated 50 Hz leakage current is almost zero. If the potentiometer is turned completely to the left, there is no compensation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Leakage current peaks, which occur when the inverter is switched on due to the charging of the capacitors, are prevented by the integrated soft start function.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The interchanging of phase and neutral conductor is recognized by LEAKCOMP\u00ae 1P during the start-up process and corrected if necessary.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The LEAKCOMP\u00ae 1P has three light-emitting diodes as display elements. The green LED serves as an operating indicator and signals the presence of mains voltage. During the soft start process, the red LED first flashes quickly (1&lt;sup>st&lt;\/sup> level) and then more slowly (2&lt;sup>nd&lt;\/sup> level). When the soft start process is complete, the red LED lights up continuously (operation). If an error occurs during the soft start process, the red LED flashes (see <a href=\"https:\/\/epa.de\/en\/downloads\/manuals\/\" data-type=\"page\" data-id=\"3937\">manual<\/a>, chapter \u201cTroubleshooting\u201d). The level of the leakage current is indicated by the yellow LED. The darker the yellow LED lights up, the lower the compensated leakage current. The yellow LED is therefore also used to manually adjust the compensation.<\/p>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--40)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><kbd>*<\/kbd> The LEAKCOMP\u00ae 1P compensates for operational 50 Hz leakage currents. High leakage currents at frequencies other than this can still trigger the RCD. Here EPA offers <a href=\"https:\/\/epa.de\/en\/emc\/products\/absorption-filters\/\" data-type=\"page\" data-id=\"3578\">appropriate filter technology<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>For safe and reliable single-phase applications! In industry, residual current circuit breakers (RCCB) are used more and more for personal and fire protection. The modern components in automation technology (such as frequency inverters, line filters, switched-mode power supplies, shielded motor cables, etc.) generate system-related leakage currents. These so-called \u201coperational\u201d leakage currents are recognized by the <a href=\"https:\/\/epa.de\/en\/lc\/products\/leakage-current-compensation-leakcomp-1p\/\" class=\"more-link\">&#8230;<span class=\"screen-reader-text\">  Leakage current compensation LEAKCOMP\u00ae 1P<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3771,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1061","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/epa.de\/en\/wp-json\/wp\/v2\/pages\/1061","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/epa.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/epa.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/epa.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/epa.de\/en\/wp-json\/wp\/v2\/comments?post=1061"}],"version-history":[{"count":1,"href":"https:\/\/epa.de\/en\/wp-json\/wp\/v2\/pages\/1061\/revisions"}],"predecessor-version":[{"id":6271,"href":"https:\/\/epa.de\/en\/wp-json\/wp\/v2\/pages\/1061\/revisions\/6271"}],"up":[{"embeddable":true,"href":"https:\/\/epa.de\/en\/wp-json\/wp\/v2\/pages\/3771"}],"wp:attachment":[{"href":"https:\/\/epa.de\/en\/wp-json\/wp\/v2\/media?parent=1061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}