{"product_id":"moeller-esr4-no-21-safety-relay-24-v-dc-3-no-1-nc-outputs-dual-channel","title":"Moeller – ESR4-NO-21 – Safety Relay 24 V DC, 3 NO + 1 NC Outputs, Dual-Channel","description":"\u003cp class=\"p1\"\u003eThe \u003cspan class=\"s1\"\u003e\u003cb\u003eMoeller ESR4-NO-21\u003c\/b\u003e\u003c\/span\u003e is a dual-channel safety relay used for monitoring emergency stop buttons, guard doors, and safety interlock circuits. It operates on 24 V DC and provides three safety contacts plus one auxiliary status output. The relay features cross-fault monitoring, redundant circuit design, and selectable automatic or manual reset modes — ideal for machinery safety control systems.\u003c\/p\u003e","brand":"Moeller","offers":[{"title":"Default Title","offer_id":56457347072374,"sku":"EB-286873698558","price":113.05,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/4202\/8857\/files\/57_d2eb2c82-a157-4bd8-ac11-f68837990cc7.png?v=1760525068","url":"https:\/\/volt-werk.com\/products\/moeller-esr4-no-21-safety-relay-24-v-dc-3-no-1-nc-outputs-dual-channel","provider":"VOLTWERK Handel","version":"1.0","type":"link"}