{"product_id":"silent-knight-ske-zn4","title":"Silent Knight SKE-ZN4 Expander Board","description":"\u003cp\u003eSilent Knight SKE-ZN4 Four-Zone Speaker Splitter Expander.\u003c\/p\u003e\n\u003ch3\u003eCompliance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUL Listed\u003c\/li\u003e\n\u003cli\u003eMEA Approved 429-92-E\u003c\/li\u003e\n\u003cli\u003eCSFM Listed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDivides a single voice evacuation amplifier output into four independent speaker zone circuits\u003c\/li\u003e\n\u003cli\u003eOperates with the SKE-450 50-watt voice evacuation system expander panel\u003c\/li\u003e\n\u003cli\u003eSupports 25 or 70.7 VRMS speaker circuits in Class A or Class B wiring configurations\u003c\/li\u003e\n\u003cli\u003eEach zone independently activated for floor-by-floor or area-based evacuation signaling\u003c\/li\u003e\n\u003cli\u003eField-supervised speaker circuit outputs for wiring fault detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SKE-ZN4 is a four-zone speaker splitter expansion module for the Silent Knight SKE-450 voice evacuation system (a Honeywell brand). It partitions the SKE-450's 50-watt amplifier output into four supervised speaker zone circuits, allowing zone-by-zone evacuation announcements in mid-sized buildings. Independent zone activation supports phased evacuation strategies — for example, alarming only the affected floor plus adjacent floors during the initial alert. MEA 429-92-E and CSFM listings extend applicability to New York City and California installations. Confirm speaker line voltage, wiring class, and total connected load against the SKE-ZN4 installation guide.\u003c\/p\u003e\n\u003cp\u003eVerify panel\/device family compatibility before ordering.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":52004374118693,"sku":"SKE-ZN4","price":550.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7648\/4645\/files\/silent-knight-fire-alarms-default-title-silent-knight-ske-zn4-voice-evacuation-34705722835168.jpg?v=1771296034","url":"https:\/\/fastalarmdistribution.com\/products\/silent-knight-ske-zn4","provider":"Fast Alarm Distribution","version":"1.0","type":"link"}