{"product_id":"sr4b3b01s-compact-22-5mm-safety-relay-for-emergency-stop-monitoring","title":"SR4B3B01S - Compact 22.5mm Safety Relay for Emergency Stop Monitoring","description":"\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMonitor critical safety functions with this compact safety relay, designed to oversee emergency stop switches, safety switches, and AOPDs Despite its narrow installation width of just 225 mm, it provides ample space for status display indicators and allows for the attachment of an operating equipment label, ensuring efficient functionality and clear communication of operational conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cp\u003e•Installation width just 22,5 mm.\u003c\/p\u003e\n\u003cp\u003e•Clear terminal assignment thanks to coding pins.\u003c\/p\u003e\n\u003cp\u003e•Circuit diagram directly on the housing.\u003c\/p\u003e\n\u003cp\u003e•Optional cross-circuit monitoring.\u003c\/p\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable width=\"100%\" style=\"height: 10px; width: 90.1204%;\"\u003e\n\u003ctbody\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Supply Voltage (DC)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e20.4 ... 28.8 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Supply Voltage (AC)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e20.4 ... 26.4 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Input wiring\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e1-, 2-channel\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Response time (automatic start)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e100 ms\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Response time (monitored start)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e15 ms\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Fall time (emergency stop)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e\u0026lt; 32 ms\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Temperature Range\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e-25 ... 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Storage temperature\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e-40 ... 85 °C\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Number of Safety Outputs stop 0\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Switching current safety output (250 V AC)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e8 A\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Number of auxiliary outputs\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Switching current auxiliary output (24 V DC)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e2 A\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Housing Material\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Degree of Protection\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Connection\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003eScrew Clamp (pluggable)\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Clampable Wire Cross-Section\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e0.2 ... 2.5 mm²\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e DIN-Rail mounting\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Performance Level (EN ISO 13849-1), Stop 0\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003eup to Cat. 4 PL e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Mission Time TM (EN ISO 13849-1)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e20 a\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Safety integrity level (EN 61508) Stop 0\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003eup to SIL 3\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Stop Category (EN 60204-1)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e B10d Switching Cycles (mechanical)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e20 000 000\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e B10d Switching Cycles (40 % load)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e7 500 000\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e B10d Switching Cycles (60 % load)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e2 500 000\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e B10d Switching Cycles (80 % load)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e1 000 000\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e B10d Switching Cycles (100 % load)\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003e400 000\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Cross-circuit detection\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003eoptional\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Start, monitored\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003eyes\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Start, automatically\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003eyes\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Contactor Monitoring\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003eyes\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Input signal NC\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003eyes\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003ctbody\u003e\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 40.4219%;\"\u003e Input signal OSSD\u003c\/td\u003e\n\u003ctd style=\"width: 59.2209%; height: 39.2px;\"\u003eyes\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e[pdf]\u003cembed src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0013\/1117\/8815\/files\/document_4679b551-a1af-47a5-855e-33fbb88c558d.pdf?v=1746746849\" width=\"\" height=\"\" type=\"application\/pdf\"\u003e[\/pdf]\u003c\/embed\u003e\u003c\/p\u003e","brand":"WENGLOR","offers":[{"title":"Default Title","offer_id":41684814528575,"sku":"SR4B3B01S","price":2.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0013\/1117\/8815\/files\/download_dd649293-857a-4501-be12-e8a16460f647.webp?v=1746746870","url":"https:\/\/www.nassauelectrical.com\/products\/sr4b3b01s-compact-22-5mm-safety-relay-for-emergency-stop-monitoring","provider":"NassauElectrical","version":"1.0","type":"link"}