{"id":2492,"date":"2025-02-11T21:05:40","date_gmt":"2025-02-11T21:05:40","guid":{"rendered":"https:\/\/www.basler.com\/product\/be1-27-be1-59-be1-27-59-voltage-relay\/"},"modified":"2026-09-11T09:09:56","modified_gmt":"2026-09-11T14:09:56","slug":"be1-27-be1-59-be1-27-59-voltage-relay","status":"publish","type":"product","link":"https:\/\/www.basler.com\/bg\/product\/be1-27-be1-59-be1-27-59-voltage-relay\/","title":{"rendered":"BE1-27, BE1-59, BE1-27\/59, Voltage Relay"},"content":{"rendered":"<section  data-block-id=\"hammer_block_4c78ac722364f2c819281c8746058c7e\" 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_6adca3ad07772\" data-component=\"headline\" class=\"component component-headline headline medium style-default\">BE1-27, BE1-59, BE1-27\/59, Voltage Relay<\/h1>\n                <\/div>\n            \n                            <div id=\"hammer_component_6adca3ad0780c\" data-component=\"rich-text\" class=\"component component-rich-text rich-text\">The BE1-27, BE1-59, and BE1-27\/59 voltage relays provide undervoltage, overvoltage, and combined over\/undervoltage protection to help safeguard electrical systems and connected equipment from abnormal voltage conditions.<\/div>\n            \n                                                <div class=\"buttons\">\n                                                                                                    \n                                                                                                                                                                    <a id=\"hammer_component_6adca3ad08241\" 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=2492,36996,36971,36972\" target=\"\" title=\"View Resources\" aria-label=\"View Resources\">    <span class=\"button-wrapper\">\n                    <strong class=\"button-text\">View Resources<\/strong>\n        \n                    <span class=\"icon-wrapper\" aria-hidden=\"true\">\n                <span class=\"button-icon\">\n                    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"8\" height=\"8\" viewbox=\"0 0 8 8\" fill=\"currentColor\"><path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M7.25606 1.27007L0.526065 8L0 7.47393L6.73 0.743975H0.789112V0H8.00004V7.21087H7.25606V1.27007Z\" fill=\"currentColor\"><\/path><\/svg>                 <\/span>\n            <\/span>\n            <\/span>\n    <\/a>\n                                            <\/div>\n                                    <\/div>\n\n                 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1024w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/1451-150x83.jpg 150w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/1451-414x229.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_6adca3ad08ac0\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"1084\" height=\"600\" src=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/211.jpg\" class=\"img\" alt=\"BE1-27, BE1-59, BE1-27\/59 Voltage Relays\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/211.jpg 1084w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/211-768x425.jpg 768w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/211-1024x567.jpg 1024w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/211-150x83.jpg 150w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/211-414x229.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_6adca3ad08daa\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"1084\" height=\"600\" src=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/1451.jpg\" class=\"img\" alt=\"Application: Switchgear\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/1451.jpg 1084w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/1451-768x425.jpg 768w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/1451-1024x567.jpg 1024w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/1451-150x83.jpg 150w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/02\/1451-414x229.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_6c944cb8ab3d80c7b3a90e47e937f916\" 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_6adca3ad10546\" 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_6adca3ad1061b\" data-component=\"rich-text\" class=\"component component-rich-text rich-text\"><ul>\n<li>Immediate protection response to extreme voltage conditions with instantaneous functions.<\/li>\n<li>Timings can be tailored to the application with individually adjustable definite, short inverse, medium inverse, or long inverse timing for each time-delayed under\/overvoltage function.<\/li>\n<li>Flexible pickup is continually adjustable over a wide range.<\/li>\n<li>Minimized PT costs as a result of low sensing burden.<\/li>\n<li>Reduced battery load with low burden power supply.<\/li>\n<li>Accurate, repeatable, and reliable operation.<\/li>\n<li>Simple HMI provides clear and intuitive settings for easy configuration.<\/li>\n<li>LED targets provide clear annunciation of status.<\/li>\n<li>Easily perform in-case system and device tests using test paddles.<\/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_db0cb3170b0c2829edb9143bd3fa9e33\" 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_6adca3ad199bc\" 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_6adca3ad19a37\" data-component=\"swiper-controls\" class=\"component component-swiper-controls swiper-controls js-controls\"><button id=\"hammer_component_6adca3ad19a57\" data-component=\"icon\" class=\"component component-icon icon button prev js-prev 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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_6adca3ad19c7c\" data-component=\"card-product\" class=\"component component-card-product card-product primary\">\n\t\t<div class=\"image-wrapper\">\n            <figure id=\"hammer_component_6adca3ad1ae35\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"300\" height=\"330\" src=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/06\/PP_Field-Isolation-Transducer-with-Cable-Assembly-9372900101.jpg\" class=\"img\" alt=\"Field Isolation Transducer with Cable Assembly (9372900101) for excitation control systems, featuring an isolation transducer module and preassembled communication cable.\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/06\/PP_Field-Isolation-Transducer-with-Cable-Assembly-9372900101.jpg 300w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/06\/PP_Field-Isolation-Transducer-with-Cable-Assembly-9372900101-136x150.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\">Excitation System Accessories<\/strong>\n            \n            <h3 class=\"title\">Field Isolation Transducer, with Cable Assembly (9372900105)<\/h3>\t\t<\/div>\n\n        <a id=\"hammer_component_6adca3ad1ba59\" data-component=\"link\" class=\"component component-link link cover-link style-primary\" href=\"https:\/\/www.basler.com\/bg\/product\/field-isolation-module-with-cable-assembly-9372900105\/\" title=\"Field Isolation Transducer, with Cable Assembly (9372900105)\" target=\"\">        <span class=\"link-text\">Field Isolation Transducer, with Cable Assembly (9372900105)<\/span>\n        <\/a>\n\n                \t<\/article>\n                    <\/div>\n                                    <div class=\"swiper-slide slide\">\n                        <article id=\"hammer_component_6adca3ad1bd4b\" data-component=\"card-product\" class=\"component component-card-product card-product primary\">\n\t\t<div class=\"image-wrapper\">\n            <figure id=\"hammer_component_6adca3ad2816f\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"414\" height=\"233\" src=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-414x233.jpg\" class=\"img\" alt=\"\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-414x233.jpg 414w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-768x432.jpg 768w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-1024x576.jpg 1024w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-150x84.jpg 150w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-1600x900.jpg 1600w, https:\/\/www.basler.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\">KR7FF<\/h3>\t\t<\/div>\n\n        <a id=\"hammer_component_6adca3ad28581\" data-component=\"link\" class=\"component component-link link cover-link style-primary\" href=\"https:\/\/www.basler.com\/bg\/product\/kr7ff\/\" title=\"KR7FF\" target=\"\">        <span class=\"link-text\">KR7FF<\/span>\n        <\/a>\n\n                \t<\/article>\n                    <\/div>\n                                    <div class=\"swiper-slide slide\">\n                        <article id=\"hammer_component_6adca3ad2883e\" data-component=\"card-product\" class=\"component component-card-product card-product primary\">\n\t\t<div class=\"image-wrapper\">\n            <figure id=\"hammer_component_6adca3ad29d7c\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"414\" height=\"233\" src=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-414x233.jpg\" class=\"img\" alt=\"\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-414x233.jpg 414w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-768x432.jpg 768w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-1024x576.jpg 1024w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-150x84.jpg 150w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/09\/Basler-Default-Image-1600x900.jpg 1600w, https:\/\/www.basler.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\">Adapter Plate to Mount Two M1 Cases Side-by-Side (Includes an M1 Blank Plate) (9108559102)<\/h3>\t\t<\/div>\n\n        <a id=\"hammer_component_6adca3ad2a1a6\" data-component=\"link\" class=\"component component-link link cover-link style-primary\" href=\"https:\/\/www.basler.com\/bg\/product\/adapter-plate-to-mount-two-m1-cases-side-by-side-includes-an-m1-blank-plate-9108559102\/\" title=\"Adapter Plate to Mount Two M1 Cases Side-by-Side (Includes an M1 Blank Plate) (9108559102)\" target=\"\">        <span class=\"link-text\">Adapter Plate to Mount Two M1 Cases Side-by-Side (Includes an M1 Blank Plate) (9108559102)<\/span>\n        <\/a>\n\n                \t<\/article>\n                    <\/div>\n                                    <div class=\"swiper-slide slide\">\n                        <article id=\"hammer_component_6adca3ad2a425\" data-component=\"card-product\" class=\"component component-card-product card-product primary\">\n\t\t<div class=\"image-wrapper\">\n            <figure id=\"hammer_component_6adca3ad2eba2\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"300\" height=\"330\" src=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/07\/1_ES-47N_1-768x425-1.jpg\" class=\"img\" alt=\"Basler Electric ES-47N Phase Balance Relay, a microprocessor-based protective relay designed to monitor three-phase systems for voltage imbalance and phase balance protection.\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/07\/1_ES-47N_1-768x425-1.jpg 300w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/07\/1_ES-47N_1-768x425-1-136x150.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            \n            <h3 class=\"title\">ES-47N, Phase Balance Relay<\/h3>\t\t<\/div>\n\n        <a id=\"hammer_component_6adca3ad30236\" data-component=\"link\" class=\"component component-link link cover-link style-primary\" href=\"https:\/\/www.basler.com\/bg\/product\/es-series-protection-relays\/es-47n-phase-balance-relay\/\" title=\"ES-47N, Phase Balance Relay\" target=\"\">        <span class=\"link-text\">ES-47N, Phase Balance Relay<\/span>\n        <\/a>\n\n                \t<\/article>\n                    <\/div>\n                                    <div class=\"swiper-slide slide\">\n                        <article id=\"hammer_component_6adca3ad304bc\" data-component=\"card-product\" class=\"component component-card-product card-product primary\">\n\t\t<div class=\"image-wrapper\">\n            <figure id=\"hammer_component_6adca3ad33f46\" data-component=\"image\" class=\"component component-image image\">\n        <picture class=\"picture\">\n            <img decoding=\"async\" width=\"300\" height=\"330\" src=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/06\/PP_BE1-FLEX-IO-Board-12-input-6-sets-of-2-with-shared-commons-with-compression-terminals-IOAB-N5-C.png\" class=\"img\" alt=\"BE1-FLEX I\/O Board IOAB-N5-C with compression terminals, featuring 12 inputs arranged as 6 sets of 2 with shared commons for protection, automation, and control applications.\" loading=\"lazy\" title=\"\" srcset=\"https:\/\/www.basler.com\/wp-content\/uploads\/2025\/06\/PP_BE1-FLEX-IO-Board-12-input-6-sets-of-2-with-shared-commons-with-compression-terminals-IOAB-N5-C.png 300w, https:\/\/www.basler.com\/wp-content\/uploads\/2025\/06\/PP_BE1-FLEX-IO-Board-12-input-6-sets-of-2-with-shared-commons-with-compression-terminals-IOAB-N5-C-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\">Accessories<\/strong>\n            \n            <h3 class=\"title\">BE1-FLEX I\/O Board: 12 input, 6 sets of 2 with shared commons, with compression terminals (IOAB-N5-C)<\/h3>\t\t<\/div>\n\n        <a id=\"hammer_component_6adca3ad34b38\" data-component=\"link\" class=\"component component-link link cover-link style-primary\" href=\"https:\/\/www.basler.com\/bg\/product\/be1-flex-io-board-12-input-4-sets-of-3-with-shared-commons-ioab-n5\/\" title=\"BE1-FLEX I\/O Board: 12 input, 6 sets of 2 with shared commons, with compression terminals (IOAB-N5-C)\" target=\"\">        <span class=\"link-text\">BE1-FLEX I\/O Board: 12 input, 6 sets of 2 with shared commons, with compression terminals (IOAB-N5-C)<\/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    <\/section>\n\n","protected":false},"excerpt":{"rendered":"<p>The BE1-27, BE1-59, and BE1-27\/59 voltage relays provide undervoltage, overvoltage, and combined over\/undervoltage protection to help safeguard electrical systems and connected equipment from abnormal voltage 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