{"product_id":"abb-st201m-b40-din-rail-mounted-safety-relay-module","title":"ABB ST201M-B40 DIN Rail Mounted Safety Relay Module","description":"\u003cdiv\u003e\u003cp\u003eABB ST201M-B40 is a single-pole DIN-rail mounted miniature circuit breaker in the System Pro M Compact ST200M family, designed to provide overcurrent protection for 40 A circuits in low-voltage installations. It protects 230 V AC lines with a Type B trip characteristic suited to general‑purpose loads, and it carries a rated short‑circuit current of 11.2 kA at 230 VAC (50\/60 Hz). The device’s enclosure measures 88 mm high by 17.5 mm wide by 69 mm deep and mounts on a standard 35 mm DIN rail with double-clamped terminals for conductors from 14 AWG to 4 AWG. It is rated for operation from −25°C to 55°C and offers IP20 enclosure protection. The ST201M-B40 is UL 1077 listed for use as a circuit‑protection device in panelboards and control cabinets. Typical applications include protecting feeders and branch circuits in industrial control panels, automation cabinets, and power-distribution enclosures where space is tight and reliable 40 A protection is required. In catalog listings, some variants note a DC rating up to 72 VDC, but the primary specification remains 230 V AC, 40 A, Type B protection.\u003c\/p\u003e\u003c\/div\u003e","brand":"ABB","offers":[{"title":"New","offer_id":51656724906286,"sku":null,"price":38.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_5a054d28-8361-4afb-a649-ff049617a218.jpg?v=1769462965","url":"https:\/\/plgautomation.com\/products\/abb-st201m-b40-din-rail-mounted-safety-relay-module","provider":"PLG Automation ","version":"1.0","type":"link"}