{"title":"Phase Protection Relay","description":"\u003cdiv class=\"detailmodule_text-image\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"detailmodule_text-image\"\u003e\n\u003cp class=\"detail-desc-decorate-title\"\u003eGeneral\u003c\/p\u003e\n\u003cp class=\"detail-desc-decorate-content\"\u003eVoltage Controller Relays are designed to avoid the failures of network voltage for the devices which have sensitive working voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_text-image\"\u003e\n\u003cp class=\"detail-desc-decorate-title\"\u003eUsage and Working Principle\u003c\/p\u003e\n\u003cp data-spm-anchor-id=\"a2g0o.detail.1000023.i0.3c844707aHvTnU\" class=\"detail-desc-decorate-content\"\u003eMake the connections according to the diagram. Set the device according to the required electrical charge. When the power is on if the voltages are the same as adjusted, relay led switches on and relay pulls. In this case, contact out is(NO)3 pole. When the voltage values are normal, the relay releases and the led is switched off after waiting till the set time is up. In this case, contact out is (NC)1.\u003cbr\u003e GK-04 type has related led for high and low voltage and Phase failure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"samwha-dsp-gk-04fn-phase-control-relay","title":"Samwha-Dsp GK-04FN Phase Control Adjustable Protection Relay (3*380V With Neutral Wire)","description":"\u003ch4 class=\"Polaris-Header-Title_2qj8j\"\u003eSamwha-Dsp GK-04FN Phase Sequence Phase Failure Voltage Analogue Adjustable Protection Relay (3*380V With Neutral Wire)\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eBrand Name: \u003c\/b\u003e samwhadsp\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eCertification: \u003c\/b\u003e CE\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eOrigin: \u003c\/b\u003e CN(Origin)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eTheory: \u003c\/b\u003e Voltage Relay\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eis_customized: \u003c\/b\u003e Yes\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eContact Load: \u003c\/b\u003e High Power\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eVoltage: \u003c\/b\u003e 380V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eModel Number: \u003c\/b\u003e GK-04FN\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eProtect Feature: \u003c\/b\u003e Sealed\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003ePower Source: \u003c\/b\u003e AC\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eUsage: \u003c\/b\u003e Protective\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eProtection Item 1: \u003c\/b\u003e Overvoltage\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eProtection Item 2: \u003c\/b\u003e undervoltage\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eProtection Item 3: \u003c\/b\u003e Phase failure\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eProtection Item 4: \u003c\/b\u003e phase sequence\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"electrical center b2c","offers":[{"title":"Default Title","offer_id":41036570165441,"sku":"54526795-1","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/0872\/2881\/products\/samwha-dsp-gk-04fn-phase-control-adjustable-protection-relay-3-380v-with-neutral-wire-electrical-center-b2c-1.jpg?v=1718872609"},{"product_id":"samwha-dsp-fkv-11-3-380vac-phase-relay","title":"Samwha-Dsp FKV-11 3*380VAC Non-Neutual Three-Phase Phase Failure, Phase Asymmetry (Fixed. 30%) Relay","description":"\u003cp\u003e\u003cspan\u003e\u003cb\u003eBrand Name: \u003c\/b\u003e samwhadsp\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eCertification: \u003c\/b\u003e CE\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eOrigin: \u003c\/b\u003e CN(Origin)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eTheory: \u003c\/b\u003e Voltage Relay\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eis_customized: \u003c\/b\u003e Yes\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eContact Load: \u003c\/b\u003e Low Power\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eVoltage: \u003c\/b\u003e 380V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eModel Number: \u003c\/b\u003e FKV-11\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eProtect Feature: \u003c\/b\u003e Sealed\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003ePower Source: \u003c\/b\u003e AC\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eUsage: \u003c\/b\u003e Protective\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eProtection Item 2: \u003c\/b\u003e Phase Failure\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eProtection Item 3: \u003c\/b\u003e Asymmetry ±30%\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"electrical center b2c","offers":[{"title":"Default Title","offer_id":41036592644289,"sku":"42986464-1","price":13.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/0872\/2881\/products\/samwha-dsp-fkv-11-3-380vac-non-neutual-three-phase-phase-failure-phase-asymmetry-fixed-30percent-relay-electrical-center-b2c-1.jpg?v=1718872631"},{"product_id":"schneider-harmony-modular-3-phase-supply-control-relay-8a-2co-183-528vac-rm","title":"Schneider RM22TG20 3-Phase Monitoring Relay","description":"\u003ch3\u003eSchneider RM22TG20 3-Phase Monitoring Relay, RM22TR33 Phase Loss\/Over\/Under Voltage, RM22LG11MR Liquid Level Control Relay, 208-480VAC\u003c\/h3\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe \u003cstrong\u003eSchneider RM17\/RM22 Series Harmony Control Relays\u003c\/strong\u003e are compact, DIN rail-mountable monitoring relays designed for industrial power system protection and control. These relays provide reliable monitoring of 3-phase voltage, phase sequence, phase loss, over\/under voltage, and liquid levels, ensuring stable operation of motors, pumps, and other critical equipment.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003eCore Features by Model\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\"\u003ePrimary Functions\u003c\/th\u003e\n\u003cth align=\"left\"\u003eVoltage Range\u003c\/th\u003e\n\u003cth align=\"left\"\u003eKey Features\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eRM22TG20\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e3-phase monitoring (phase sequence, phase loss)\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e208-480V AC\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eSimple, cost-effective phase monitoring, 2CO 8A contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eRM22TR33\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e3-phase phase loss, over\/under voltage monitoring\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e380-480V AC\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eAdjustable voltage thresholds, phase unbalance detection, 2CO 8A contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eRM22LG11MR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eLiquid level control relay\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e24-240V AC\/DC\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eUniversal voltage input, automatic level control for pumps\/tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eRM17TG00\/RM17TG20\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e3-phase monitoring (phase sequence, phase loss)\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e208-480V AC\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eCompact design, basic phase protection for light-duty applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e Common Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN Rail Mounting\u003c\/strong\u003e: Compact form factor (RM22 series) and ultra-compact design (RM17 series) for easy installation in control cabinets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Settings\u003c\/strong\u003e: Most models include potentiometers for setting voltage thresholds, unbalance levels, and time delays (0.1-30s).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus LEDs\u003c\/strong\u003e: Visual indication of power, output status, and fault conditions (phase loss, over\/under voltage) for quick troubleshooting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostic Button\u003c\/strong\u003e: Test function to simulate fault conditions and verify relay operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Operating Range\u003c\/strong\u003e: Suitable for global industrial power grids, with models covering 200-480V AC and 24-240V AC\/DC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003eApplications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMotor phase sequence protection (prevent reverse rotation)\u003c\/li\u003e\n\u003cli\u003ePhase loss and voltage anomaly protection for pumps, compressors, and industrial machinery\u003c\/li\u003e\n\u003cli\u003eLiquid level control for water tanks, sewage systems, and chemical processing\u003c\/li\u003e\n\u003cli\u003eEmergency power switching and power quality monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDATA SHEET\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eITEM\u003c\/th\u003e\n\u003cth align=\"left\"\u003eVALUE\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eMonitoring Relay \/ Control Relay \/ Phase Sequence Relay \/ Liquid Level Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eSchneider Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eRM17 Series \/ RM22 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eModels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eRM22TG20, RM22TR33, RM22LG11MR, RM17TG00, RM17TG20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eFunctions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003ePhase Sequence Monitoring, Phase Loss Detection, Over\/Under Voltage Protection, Liquid Level Control, Phase Unbalance Detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e208-480V AC (RM22TG20\/TR33, RM17TG00\/TG20), 24-240V AC\/DC (RM22LG11MR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eOutput Contacts\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e2CO (Changeover), 8A rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eDIN Rail Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eAdjustable Settings, Status LEDs, Diagnostic Test Button, Compact Design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eMotor Protection, Pump Control, Power Quality Monitoring, Industrial Automation, Liquid Level Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Schneider Electric","offers":[{"title":"208-480VAC (phase sequence phase loss)","offer_id":50360488100033,"sku":"RM22TG20\/ 208-480VAC 3-phase monitoring (phase sequence phase loss)","price":73.84,"currency_code":"USD","in_stock":true},{"title":"380-480VAC (over\/under voltage monitoring)","offer_id":50360488132801,"sku":"RM22TR33\/ 380-480VAC 3-phase monitoring (over\/under voltage monitoring)","price":131.2,"currency_code":"USD","in_stock":true},{"title":"24-240V AC\/DC  Liquid level control relay","offer_id":50360488165569,"sku":"RM22LG11MR\/ 24-240V AC\/DC Liquid level control relay","price":118.5,"currency_code":"USD","in_stock":true},{"title":"208-480V AC (phase sequence phase loss)","offer_id":50360488198337,"sku":"RM17TG00\/ 208-480V AC 3-phase monitoring (phase sequence phase loss)","price":120.63,"currency_code":"USD","in_stock":true},{"title":"208-480V (phase sequence phase loss)","offer_id":50360488231105,"sku":"RM17TG20\/ 208-480V AC 3-phase monitoring (phase sequence phase loss)","price":118.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/0872\/2881\/files\/imageye___-_imgi_8_O1CN01TABW4V22y9zM3T8DR__2701467188_jpg_q50_jpg.jpg?v=1776830236"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/0872\/2881\/collections\/phase-protection-relay-electrical-center-b2c.jpg?v=1718870566","url":"https:\/\/www.electric-b2c.com\/en-ae\/collections\/phase-protection-relay.oembed","provider":"electrical center b2c","version":"1.0","type":"link"}