{"id":2432,"date":"2025-02-11T21:05:22","date_gmt":"2025-02-11T21:05:22","guid":{"rendered":"https:\/\/www.basler.com\/product\/be1-50-51-self-powered-time-overcurrent-relay\/"},"modified":"2025-10-03T16:31:52","modified_gmt":"2025-10-03T21:31:52","slug":"be1-50-51-self-powered-time-overcurrent-relay","status":"publish","type":"product","link":"https:\/\/bestsoftwaredepot.com\/bg\/product\/be1-50-51-self-powered-time-overcurrent-relay\/","title":{"rendered":"BE1-50\/51, Self-Powered Time Overcurrent Relays"},"content":{"rendered":"<section  data-block-id=\"hammer_block_1fdbc48218fe5952ee8363f5b9f67bd0\" data-block=\"hero-10\" class=\"block block-hero-10 hero-10\" id=\"overview\">    <div class=\"wrapper\">\n        <div class=\"left_content\">\n                            <div class=\"headline-wrapper\">\n                                            <strong class=\"overline\">Protective Relay Systems<\/strong>\n                    \n                    <h1 id=\"hammer_component_69e2f16332096\" data-component=\"headline\" class=\"component component-headline headline medium style-default\">BE1-50\/51, Self-Powered Time Overcurrent Relays<\/h1>\n                <\/div>\n            \n            \n                                                <div class=\"buttons\">\n                                                                                                    \n                                                                                                                                                                    <a id=\"hammer_component_69e2f163329fb\" data-component=\"button\" class=\"component component-button button style-secondary\" href=\"?languages=%D0%91%D1%8A%D0%BB%D0%B3%D0%B0%D1%80%D1%81%D0%BA%D0%B8&amp;products=2432,36984,36985\" target=\"\" title=\"View Resources\" aria-label=\"View Resources\">    <span class=\"button-wrapper\">\n                    <strong class=\"button-text\">View Resources<\/strong>\n      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1084px\">        <\/picture>\n\n            <\/figure>\n                                                            <\/div>\n                                                    <div class=\"swiper-slide\">\n                                                                    <figure id=\"hammer_component_69e2f16333336\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"1084\" height=\"600\" src=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/215.jpg\" class=\"img\" alt=\"BE1-50\/51M Self-Powered Time Overcurrent Relay\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/215.jpg 1084w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/215-768x425.jpg 768w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/215-1024x567.jpg 1024w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/215-150x83.jpg 150w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/215-414x229.jpg 414w\" sizes=\"auto, (max-width: 1084px) 100vw, 1084px\">        <\/picture>\n\n            <\/figure>\n                                                            <\/div>\n                                                    <div class=\"swiper-slide\">\n                                                                    <figure id=\"hammer_component_69e2f16333691\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"1084\" height=\"600\" src=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230.jpg\" class=\"img\" alt=\"Rack mount plate to vertically mount four BE1-50\/51M units, Basler p\/n: 9252012001\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230.jpg 1084w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230-768x425.jpg 768w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230-1024x567.jpg 1024w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230-150x83.jpg 150w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230-414x229.jpg 414w\" sizes=\"auto, (max-width: 1084px) 100vw, 1084px\">        <\/picture>\n\n            <\/figure>\n                                                            <\/div>\n                                            <\/div>\n                <\/div>\n\n                                    <div class=\"slider slider-vertical\">\n                        <div class=\"swiper-wrapper\">\n                                                            <div class=\"swiper-slide\">\n                                                                            <figure id=\"hammer_component_69e2f163339ad\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"1084\" height=\"600\" src=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/207.jpg\" class=\"img\" alt=\"BE1-50\/51B Self-Powered Time Overcurrent Relay, in S1 case\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/207.jpg 1084w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/207-768x425.jpg 768w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/207-1024x567.jpg 1024w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/207-150x83.jpg 150w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/207-414x229.jpg 414w\" sizes=\"auto, (max-width: 1084px) 100vw, 1084px\">        <\/picture>\n\n            <\/figure>\n                                                                    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https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/215-150x83.jpg 150w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/215-414x229.jpg 414w\" sizes=\"auto, (max-width: 1084px) 100vw, 1084px\">        <\/picture>\n\n            <\/figure>\n                                                                    <\/div>\n                                                            <div class=\"swiper-slide\">\n                                                                            <figure id=\"hammer_component_69e2f163344b5\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"1084\" height=\"600\" src=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230.jpg\" class=\"img\" alt=\"Rack mount plate to vertically mount four BE1-50\/51M units, Basler p\/n: 9252012001\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230.jpg 1084w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230-768x425.jpg 768w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230-1024x567.jpg 1024w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230-150x83.jpg 150w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/230-414x229.jpg 414w\" sizes=\"auto, (max-width: 1084px) 100vw, 1084px\">        <\/picture>\n\n            <\/figure>\n                                                                    <\/div>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n            <\/div>\n    <\/section>\n\n<section  data-block-id=\"hammer_block_47dca87b877723469d0fc04484109c9e\" data-block=\"product-features-benefits\" class=\"block block-product-features-benefits product-features-benefits spacing-top-default spacing-bottom-default\" id=\"features-benefits\">\t<div class=\"wrapper\">\n\t\t<div class=\"headline-wrapper\">\n            <h2 id=\"hammer_component_69e2f1633ac4e\" data-component=\"headline\" class=\"component component-headline headline style-default\">&mdash; &#1061;&#1072;&#1088;&#1072;&#1082;&#1090;&#1077;&#1088;&#1080;&#1089;&#1090;&#1080;&#1082;&#1080; &#1080; &#1087;&#1088;&#1077;&#1076;&#1080;&#1084;&#1089;&#1090;&#1074;&#1072; &#1085;&#1072; &#1087;&#1088;&#1086;&#1076;&#1091;&#1082;&#1090;&#1072;<\/h2>\n\t\t<\/div>\n\n        \t\t\t<ul class=\"items\">\n                \t\t\t\t\t<li class=\"item\">\n                        <div id=\"hammer_component_69e2f1633acfd\" data-component=\"rich-text\" class=\"component component-rich-text rich-text\"><ul>\n<li>Accurate, repeatable, and reliable operation.<\/li>\n<li>No additional power source required since relays are self-powered from 50\/60 Hz systems. Available in five- or one-amp CT secondary models.<\/li>\n<li>Timings can be tailored to the application with multiple field-selectable curves.<\/li>\n<li>Flexible pickup is continuously adjustable over a wide range.<\/li>\n<li>Instantaneous protection can be set lower to provide more complete protection with a design that minimizes transient overreach.<\/li>\n<li>Reduce arc flash hazards by applying a second independent instantaneous element available.<\/li>\n<li>Models available to replicate decaying reset of electromechanical relay disks when current drops to zero.<\/li>\n<li>Replace existing electromechanical relays with specifically-wired retrofit models.<\/li>\n<li>Reduce CT costs with low sensing and supply burdens.<\/li>\n<li>Reduce maintenance labor by eliminating the need for re-calibration.<\/li>\n<li>Testing is easy with drawout construction for all models and in-case testability for most models.<\/li>\n<\/ul>\n<\/div>\n\t\t\t\t\t<\/li>\n                \t\t\t<\/ul>\n        \n\t<\/div>\n    <\/section>\n\n<section  data-block-id=\"hammer_block_0a0ed9a3edcf7c3a47b01453658db983\" data-block=\"product-listing-slider\" class=\"block block-product-listing-slider product-listing-slider spacing-top-default spacing-bottom-default\">    <div class=\"wrapper ember-entrance-group\">\n        <header class=\"header ember-entrance\">\n            <h2 id=\"hammer_component_69e2f16347953\" data-component=\"headline\" class=\"component component-headline headline style-default\">Products<\/h2>\n\n            <p class=\"text\"><\/p>\n\n            <hr class=\"line\">\n\n            <div class=\"swiper-indicator-wrapper\">\n                <div class=\"swiper-indicator js-indicator\"><\/div>\n                <div class=\"slider-controls js-slider-controls ember-entrance\">\n                    <div id=\"hammer_component_69e2f16347a04\" data-component=\"swiper-controls\" class=\"component component-swiper-controls swiper-controls js-controls\"><button id=\"hammer_component_69e2f16347a3a\" data-component=\"icon\" class=\"component component-icon icon button prev js-prev has-style style-dark\">    <span class=\"icon-wrapper\">\n        <?xml version=\"1.0\" encoding=\"UTF-8\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10\" height=\"10\" viewbox=\"0 0 10 10\" fill=\"currentColor\"><path d=\"M5.71 10L9.88 5.33C9.88 5.33 9.95 5.24 9.97 5.18C9.99 5.12 10 5.06 10 5C10 4.94 9.99 4.88 9.97 4.82C9.95 4.76 9.92 4.71 9.88 4.67L5.71 0L5.13 0.65L8.59 4.53H0V5.46H8.58L5.12 9.34L5.7 9.99L5.71 10Z\" fill=\"currentColor\"><\/path><\/svg>     <\/span>\n    \n            <span class=\"sr-only\">Return to previous slide<\/span>\n    \n    <\/button>\n<button id=\"hammer_component_69e2f16347baf\" data-component=\"icon\" class=\"component component-icon icon button next js-next has-style style-dark\">    <span class=\"icon-wrapper\">\n        <?xml version=\"1.0\" encoding=\"UTF-8\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10\" height=\"10\" viewbox=\"0 0 10 10\" fill=\"currentColor\"><path d=\"M5.71 10L9.88 5.33C9.88 5.33 9.95 5.24 9.97 5.18C9.99 5.12 10 5.06 10 5C10 4.94 9.99 4.88 9.97 4.82C9.95 4.76 9.92 4.71 9.88 4.67L5.71 0L5.13 0.65L8.59 4.53H0V5.46H8.58L5.12 9.34L5.7 9.99L5.71 10Z\" fill=\"currentColor\"><\/path><\/svg>     <\/span>\n    \n            <span class=\"sr-only\">Jump to next slide<\/span>\n    \n    <\/button>\n<\/div>\n                <\/div>\n            <\/div>\n        <\/header>\n\n        <div class=\"swiper js-slider-products ember-entrance\">\n            <div class=\"swiper-wrapper\">\n                                    <div class=\"swiper-slide slide\">\n                        <article id=\"hammer_component_69e2f16347d1b\" data-component=\"card-product\" class=\"component component-card-product card-product primary\">\n\t\t<div class=\"image-wrapper\">\n            <figure id=\"hammer_component_69e2f163536fe\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"414\" height=\"233\" src=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-414x233.jpg\" class=\"img\" alt=\"\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-414x233.jpg 414w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-768x432.jpg 768w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-1024x576.jpg 1024w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-150x84.jpg 150w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-1600x900.jpg 1600w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image.jpg 1920w\" sizes=\"auto, (max-width: 414px) 100vw, 414px\">        <\/picture>\n\n            <\/figure>\n\t\t<\/div>\n\n\t\t<div class=\"infos\">\n            \t\t\t\t<strong class=\"term\">Accessories<\/strong>\n            \n            <h3 class=\"title\">DECS-250 to DECS-15 Adapter Bracket (9440301048)<\/h3>\t\t<\/div>\n\n        <a id=\"hammer_component_69e2f16353d77\" data-component=\"link\" class=\"component component-link link cover-link style-primary\" href=\"https:\/\/bestsoftwaredepot.com\/bg\/product\/decs-250-to-decs-15-adapter-bracket-9440301048\/\" title=\"DECS-250 to DECS-15 Adapter Bracket (9440301048)\" target=\"\">        <span class=\"link-text\">DECS-250 to DECS-15 Adapter Bracket (9440301048)<\/span>\n        <\/a>\n\n                \t<\/article>\n                    <\/div>\n                                    <div class=\"swiper-slide slide\">\n                        <article id=\"hammer_component_69e2f16354139\" data-component=\"card-product\" class=\"component component-card-product card-product primary\">\n\t\t<div class=\"image-wrapper\">\n        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System Accessories<\/strong>\n            \n            <h3 class=\"title\">CEM-2020, Contact Expansion Module<\/h3>\t\t<\/div>\n\n        <a id=\"hammer_component_69e2f1635678a\" data-component=\"link\" class=\"component component-link link cover-link style-primary\" href=\"https:\/\/bestsoftwaredepot.com\/bg\/product\/cem-2020-contact-expansion-module\/\" title=\"CEM-2020, Contact Expansion Module\" target=\"\">        <span class=\"link-text\">CEM-2020, Contact Expansion Module<\/span>\n        <\/a>\n\n                \t<\/article>\n                    <\/div>\n                                    <div class=\"swiper-slide slide\">\n                        <article id=\"hammer_component_69e2f16356c31\" data-component=\"card-product\" class=\"component component-card-product card-product primary\">\n\t\t<div class=\"image-wrapper\">\n            <figure id=\"hammer_component_69e2f16358b57\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"414\" height=\"233\" src=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-414x233.jpg\" class=\"img\" alt=\"\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-414x233.jpg 414w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-768x432.jpg 768w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-1024x576.jpg 1024w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-150x84.jpg 150w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-1600x900.jpg 1600w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image.jpg 1920w\" sizes=\"auto, (max-width: 414px) 100vw, 414px\">        <\/picture>\n\n            <\/figure>\n\t\t<\/div>\n\n\t\t<div class=\"infos\">\n            \n            <h3 class=\"title\">EDM200<\/h3>\t\t<\/div>\n\n        <a id=\"hammer_component_69e2f16359117\" data-component=\"link\" class=\"component component-link link cover-link style-primary\" href=\"https:\/\/bestsoftwaredepot.com\/bg\/product\/edm200-exciter-diode-monitor\/\" title=\"EDM200\" target=\"\">        <span class=\"link-text\">EDM200<\/span>\n        <\/a>\n\n                \t<\/article>\n                    <\/div>\n                                    <div class=\"swiper-slide slide\">\n                        <article id=\"hammer_component_69e2f16359529\" data-component=\"card-product\" class=\"component component-card-product card-product primary\">\n\t\t<div class=\"image-wrapper\">\n            <figure id=\"hammer_component_69e2f1635af34\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"300\" height=\"330\" src=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/PP_BE1-32R-BE1-32OU.jpg\" class=\"img\" alt=\"\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/PP_BE1-32R-BE1-32OU.jpg 300w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/02\/PP_BE1-32R-BE1-32OU-136x150.jpg 136w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\">        <\/picture>\n\n            <\/figure>\n\t\t<\/div>\n\n\t\t<div class=\"infos\">\n            \t\t\t\t<strong class=\"term\">Protective Relay Systems<\/strong>\n            \n            <h3 class=\"title\">BE1-32R, BE1-32O\/U Directional Power Relay<\/h3>\t\t<\/div>\n\n        <a id=\"hammer_component_69e2f1635b937\" data-component=\"link\" class=\"component component-link link cover-link style-primary\" href=\"https:\/\/bestsoftwaredepot.com\/bg\/product\/be1-32r-be1-32o-u-directional-power-relay\/\" title=\"BE1-32R, BE1-32O\/U Directional Power Relay\" target=\"\">        <span class=\"link-text\">BE1-32R, BE1-32O\/U Directional Power Relay<\/span>\n        <\/a>\n\n                \t<\/article>\n                    <\/div>\n                                    <div class=\"swiper-slide slide\">\n                        <article id=\"hammer_component_69e2f1635bd92\" data-component=\"card-product\" class=\"component component-card-product card-product primary\">\n\t\t<div class=\"image-wrapper\">\n            <figure id=\"hammer_component_69e2f1635de4f\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"300\" height=\"330\" src=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/06\/PP_Fuse-Holder-for-One-Fuse-40228.png\" class=\"img\" alt=\"\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/06\/PP_Fuse-Holder-for-One-Fuse-40228.png 300w, https:\/\/bestsoftwaredepot.com\/wp-content\/uploads\/2025\/06\/PP_Fuse-Holder-for-One-Fuse-40228-136x150.png 136w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\">        <\/picture>\n\n            <\/figure>\n\t\t<\/div>\n\n\t\t<div class=\"infos\">\n            \t\t\t\t<strong class=\"term\">Excitation System Accessories<\/strong>\n            \n            <h3 class=\"title\">Fuse Holder for One Fuse (40228)<\/h3>\t\t<\/div>\n\n        <a id=\"hammer_component_69e2f1635e773\" data-component=\"link\" class=\"component component-link link cover-link style-primary\" href=\"https:\/\/bestsoftwaredepot.com\/bg\/product\/fuse-holder-for-one-fuse\/\" title=\"Fuse Holder for One Fuse (40228)\" target=\"\">        <span class=\"link-text\">Fuse Holder for One Fuse (40228)<\/span>\n        <\/a>\n\n                \t<\/article>\n                    <\/div>\n                            <\/div>\n        <\/div>\n\n\t\t\t\t\t<div class=\"cta\">\n\t\t\t\t\t\t\t<\/div>\n\t\t    <\/div>\n    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