{"product_id":"silent-knight-sk-iso","title":"Silent Knight SK-ISO Addressable Device","description":"\u003cp\u003eSilent Knight SK-ISO Addressable Short-Circuit Isolator Module.\u003c\/p\u003e\n\u003ch3\u003eCompliance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCSFM Listed\u003c\/li\u003e\n\u003cli\u003eFM Approved\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIsolates short-circuit faults on the SK SLC to limit the faulted segment to one zone\u003c\/li\u003e\n\u003cli\u003eStandby current 450 μA max when not isolating; relay activates on fault detection\u003c\/li\u003e\n\u003cli\u003eSlim form factor: 4.5\" H x 4\" W x 0.25\" D (11.4 x 10.2 x 0.6 cm), 6.3 oz (196 g)\u003c\/li\u003e\n\u003cli\u003eOperating temperature 32°F to 120°F (0°C to 49°C), 10% to 93% humidity\u003c\/li\u003e\n\u003cli\u003eInstalled between addressable device groups to contain wiring faults per NFPA 72 Class A requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SK-ISO is an addressable short-circuit isolator module for the Silent Knight SK protocol SLC. When a wiring short occurs on the loop, the SK-ISO disconnects the faulted segment while allowing the remainder of the SLC to continue operating — a requirement for Class A (Style 6 or 7) wiring topology under NFPA 72. It is used with 5820XL and 6500 series fire alarm control panels (a Honeywell brand). NFPA 72 recommends placing isolators before and after every group of up to 25 devices on a Class A loop.\u003c\/p\u003e\n\u003cp\u003eVerify panel\/device family compatibility before ordering.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":52004337615141,"sku":"SK-ISO","price":82.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7648\/4645\/files\/silent-knight-modules-default-title-silent-knight-sk-iso-isolator-module-34232946557152.jpg?v=1771296527","url":"https:\/\/fastalarmdistribution.com\/products\/silent-knight-sk-iso","provider":"Fast Alarm Distribution","version":"1.0","type":"link"}