{"product_id":"siemens-3tk2828-2bb40","title":"3TK2828-2BB40","description":"\u003ch2\u003eOverview: Siemens 3TK2828-2BB40 SIRIUS Safety Relay\u003c\/h2\u003e\n\u003cp\u003eThe Siemens 3TK2828-2BB40 is a safety relay designed for emergency-stop circuits and safety-related control functions. Operating at 24 V DC, it features spring-loaded terminals and a compact 45 mm width. The relay offers two instantaneous normally open (NO) contacts and two delayed NO contacts adjustable from 0.5 to 30 seconds, along with one normally closed (NC) auxiliary contact, providing versatile safety circuit configurations.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Voltage:\u003c\/strong\u003e 24 V DC for industrial safety circuit compatibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e 2 NO instantaneous, 2 NO delayed (0.5 to 30 s), and 1 NC auxiliary for signaling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Spring-loaded terminals for secure connection and ease of wiring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Compact 45 mm width enables space-efficient panel installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -25 to +60 °C suitable for typical industrial environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e Enclosure rated IP20 for finger-safe operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety Standards:\u003c\/strong\u003e Complies with IEC 61508 SIL3 \/ ISO 13849-1 PL e, Cat. 4.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e Adjustable off-delay, automatic start, and monitored start-up inputs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e TÜV, UL, CSA, BG, SUVA approvals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eControl Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eContact Configuration\u003c\/td\u003e\n\u003ctd\u003e2 NO instantaneous, 2 NO delayed, 1 NC auxiliary\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAdjustable Delay\u003c\/td\u003e\n\u003ctd\u003e0.5 - 30 seconds (off-delay)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eSpring-loaded\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e45 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-25 to +60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSafety Standards\u003c\/td\u003e\n\u003ctd\u003eIEC 61508 SIL3 \/ ISO 13849-1 PL e, Cat. 4\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eTÜV, UL, CSA, BG, SUVA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDimensions (HxWxD)\u003c\/td\u003e\n\u003ctd\u003e138.5 mm x 45 mm x 110 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\u003cp\u003eThe Siemens 3TK2828-2BB40 safety relay is designed for emergency-stop systems and safety control circuits in industrial automation, ensuring high reliability and compliance with strict safety standards for machine and process safety.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":47796276396331,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_a7ec736f-615a-4092-994c-bf719b3b801c.png?v=1723552772","url":"https:\/\/leadtime.ca\/products\/siemens-3tk2828-2bb40","provider":"LEADTIME","version":"1.0","type":"link"}