{"product_id":"schmersal-srb-e-301st-configurable-safety-relay-24-v-ac-dc-3no-1nc","title":"Schmersal – SRB-E-301ST – Configurable Safety Relay 24 V AC\/DC, 3NO + 1NC","description":"\u003cp class=\"p1\"\u003eThe Schmersal SRB‑E‑301ST is a multifunctional configurable safety relay designed for emergency-stop, guard-door, light curtain, and safety mat applications. With selectable 1‑ or 2‑channel input logic, auto‑start\/monitored‑start options, and three safety (NO) plus one monitoring (NC) contact, it meets EN ISO 13849 PL e and SIL 3 safety standards. This compact 22.5 mm DIN‑rail module supports 24 VAC\/DC control voltage and includes configurable wiring modes via dual-channel DIP switches.\u003c\/p\u003e\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003c\/p\u003e\u003cp class=\"p3\"\u003e\u003cb\u003eKey Features \u0026amp; Technical Specifications:\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eModel \/ P\/N:\u003c\/b\u003e\u003c\/span\u003e SRB‑E‑301ST (Schmersal 103007672) \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eControl Voltage:\u003c\/b\u003e\u003c\/span\u003e 24 VAC\/DC ± tolerances; ≤2.4 W\/7 VA power consumption\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eSafety Contacts:\u003c\/b\u003e\u003c\/span\u003e 3 × NO safety outputs (stop category 0); 1 × NC monitoring output (auxiliary) \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eInput Logic:\u003c\/b\u003e\u003c\/span\u003e Configurable 1- or 2-channel input; auto-start or monitored-start via DIP switches; short\/open circuit detection and earth-fault monitoring \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eSafety Rating:\u003c\/b\u003e\u003c\/span\u003e SIL 3 per IEC 61508; PL e, Category 4 per EN ISO 13849‑1; PFH ≤ 1.25×10⁻⁸\/h \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eSwitching Ratings:\u003c\/b\u003e\u003c\/span\u003e AC-15 230 VAC, 4 A; DC-13 24 VDC, 4 A; auxiliary contact: 24 VDC @ 1 A \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eResponse Times:\u003c\/b\u003e\u003c\/span\u003e Pull-in ≤ 150 ms; drop-out ≤ 10 ms (power-fail\/emergency) \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eMounting \u0026amp; Dimensions:\u003c\/b\u003e\u003c\/span\u003e DIN-rail EN 60715; 22.5 mm wide; 175 g; operating –25…+60 °C; IP40 enclosure \/ IP20 terminals \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eEMC \u0026amp; Insulation:\u003c\/b\u003e\u003c\/span\u003e Rated impulse withstand 4 kV, pollution degree 2, overvoltage category III; EMC compliant \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eIndicators:\u003c\/b\u003e\u003c\/span\u003e LEDs for status and fault display, plus removable plug-in screw terminals  \u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Schmersal","offers":[{"title":"Default Title","offer_id":55818483106166,"sku":"EB-286669235199","price":113.05,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/4202\/8857\/files\/57_90e39cf8-e1bc-4768-9e5a-6291f1a6bbea.png?v=1750719422","url":"https:\/\/volt-werk.com\/products\/schmersal-srb-e-301st-configurable-safety-relay-24-v-ac-dc-3no-1nc","provider":"VOLTWERK Handel","version":"1.0","type":"link"}