{"product_id":"silent-knight-6820u-ultra-series-addressable-fire-alarm-control-panel-with-communicator-re","title":"Silent Knight 6820U Ultra Series Addressable Fire Alarm Control Panel with Communicator, Red","description":"\u003cp\u003e\u003cstrong\u003e6820U\u003c\/strong\u003e is the Silent Knight 6000 Ultra Series intelligent addressable fire alarm control panel with a built-in dual-technology (IP and POTS) communicator, and is the direct replacement for the 6820\/5820XL. One built-in SLC supports 159 System Sensor SK detectors and 159 SK modules, or 127 Hochiki SD protocol devices, expandable to 1110 (SK) or 635 (SD) points. It complies with UL 864 10th Edition and UL 2572 2nd Edition.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSLC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 built-in, expandable; 1110 (SK) or 635 (SD) addressable points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoftware zones \/ output groups\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e999 \/ 999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlexput circuits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 (8 Class B or 4 Class A NACs, or auxiliary power); 3 A max per circuit, 9 A total; 4.7k ohm EOL for Class B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelays\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo programmable Form C and one fixed trouble Form C; 2.5 A at 27.4 VDC resistive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt-in DACT, IP and POTS; optional cellular reporting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSBUS devices\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 (16 annunciators, 8 LED modules)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 VAC 60 Hz 5 A, or 240 VAC 50\/60 Hz 2.8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandby \/ alarm current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 mA \/ 415 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication loop\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupervised, power-limited, Class A or B, 32 VDC, 150 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBatteries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCabinet holds two 18 Ah batteries; charger capacity 17-55 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHistory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,000 events\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNotification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23 preset cadence patterns; selectable sync for Amseco, System Sensor, Wheelock and Gentex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16.4 in. W x 26.4 in. H x 4.1 in. D (41.66 x 67.06 x 10.41 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight \/ color\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e33 lb (15 kg) \/ red, surface or flush mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32-120 F (0-49 C), 93% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eListings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL S2766; CSFM 7165-0559:0523; FDNY 2026-TMCOAP-000190-CERT; FM Approved; Seismic VMA-45894-05C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and installation notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSK\/SS and SD devices cannot be mixed in the same system; SWIFT wireless devices work only with SK devices.\u003c\/li\u003e\n\u003cli\u003eExpand with the 6815 (SK) or 5815XL (SD) SLC expander, 5895XL or 5496 power expanders.\u003c\/li\u003e\n\u003cli\u003eUp to 17 panels can share a common communications link over copper or, with SK-FML\/SK-FSL cards, fiber.\u003c\/li\u003e\n\u003cli\u003eProgram with JumpStart auto programming, the front keypad, or Honeywell Fire Software Suite (HFSS) via USB.\u003c\/li\u003e\n\u003cli\u003eOptional HW-AV-LTE-M-2 cellular communicator; RBB remote battery box holds batteries up to 35 Ah.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated models\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/silent-knight-6820uevs\"\u003eSilent Knight 6820UEVS Ultra Series panel with Emergency Voice System\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/silent-knight-6820-1110-point-addressable-facp\"\u003eSilent Knight 6820 Addressable FACP (replaced by 6820U)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/silent-knight-6815-slc-loop-expander\"\u003eSilent Knight 6815 SLC Loop Expander\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/silent-knight-6860\"\u003eSilent Knight 6860 LCD Remote Annunciator 4x40\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/silent-knight-5860-lcd-remote-annunciator\"\u003eSilent Knight 5860 LCD Remote Annunciator\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/silent-knight-sk-nic-network-interface-card\"\u003eSilent Knight SK-NIC Network Interface Card\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/silent-knight-rbb\"\u003eSilent Knight RBB Remote Battery Box\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDocuments\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/prod-edam.honeywell.com\/content\/dam\/honeywell-edam\/hbt\/en-us\/documents\/literature-and-specs\/datasheets\/hon-ba-fire-351610-f-6820U-datasheet.pdf\"\u003e6820U Ultra Series Data Sheet 351610:F (Silent Knight)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/buildings.honeywell.com\/us\/en\/products\/by-category\/fire-life-safety\/control-panels\/fire-alarm-control-panels\/6820u-ultra-series\"\u003e6820U Ultra Series product page (Honeywell)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eSpecifications from Silent Knight data sheet 351610:F (7\/30\/2026). Manufacturer specifications are subject to change.\u003c\/em\u003e\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":67753685713120,"sku":"6820U","price":1852.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/7186\/5312\/files\/hon-ba-fire-06820u.jpg?v=1791291933","url":"https:\/\/thefirealarmsupplier.com\/products\/silent-knight-6820u-ultra-series-addressable-fire-alarm-control-panel-with-communicator-re","provider":"The Fire Alarm Supplier","version":"1.0","type":"link"}