{"product_id":"bc-129066","title":"Siemens SIRIUS Safety Relay with Relay Enabling Circuits - 3TK2820-1AJ20","description":"\u003cp\u003eThe Siemens 3TK28201AJ20 is a safety relay that monitors emergency stop circuits and protective devices to ensure machinery halts safely when a fault occurs. It provides the necessary logic and contact switching for machine safety systems where standard control relays cannot guarantee fail-safe operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePrimary Applications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmergency Stop Monitoring:\u003c\/strong\u003e Manages the shutdown sequence when an operator presses an emergency stop button on a production line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective Door Interlocking:\u003c\/strong\u003e Ensures power is cut to moving parts before a guard door or enclosure panel is opened by maintenance staff.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Curtain Integration:\u003c\/strong\u003e Monitors optoelectronic safety sensors to stop conveyor belts or robotic arms if a person breaks the light beam.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachine Control Cabinets:\u003c\/strong\u003e Serves as the central safety logic unit within industrial automation panels to coordinate multiple safety inputs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eKey Product Details \u0026amp; Specifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Family:\u003c\/strong\u003e Siemens SIRIUS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e Safety Relay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3 NO instantaneous, 1 NC signaling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e Single Channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Current:\u003c\/strong\u003e 5 A thermal current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e 115 V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Voltage:\u003c\/strong\u003e 115 V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Contacts:\u003c\/strong\u003e 1 NC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Snap-on mounting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e IP40 housing, IP20 terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e Screw-type terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 0.89 in width, 4.08 in height, 4.65 in depth\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Superior Lighting","offers":[{"title":"Default Title","offer_id":45211976138952,"sku":"3TK2820-1AJ20-Siemens","price":470.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/3726\/3048\/files\/Siemens-3TK2820-1AJ20__52560.1792623875.1280.1280.jpg?v=1792732639","url":"https:\/\/plumlighting.com\/products\/bc-129066","provider":"Superior Lighting","version":"1.0","type":"link"}