{"product_id":"sk-5204-silent-knight-4-zone-fire-alarm-control-panel-replacement-board","title":"SK-5204 | Silent Knight 4-Zone Fire Alarm Control Panel Replacement Board","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"144\" data-end=\"396\"\u003eThe Silent Knight SK-5204 is a replacement main control board for the 5204 four-zone fire alarm control panel. It provides 3 amps of current for external devices and includes two 1.5-amp supervised notification appliance circuits, supporting both 2- and 4-wire smoke detectors for reliable fire protection control.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.964%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eSilent Knight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eFire Alarm Equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eSK-5204\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eReplacement Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eConventional 4-zone FACP replacement main board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eZones Supported\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003e4 conventional input zones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eNotification Circuits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003e2 supervised circuits, 1.5A each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eOutput Current Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003e3A total for external devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eDetector Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003e2-wire and 4-wire smoke detectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eOptional Modules\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eCompatible with 5205 Digital Communicator for central station reporting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eIntegrated power management circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eSupervision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eFull supervision on inputs and outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eAlarm Communication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eOptional digital communicator (via 5205 module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eControl Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eLocal and remote fire alarm control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eChassis-mounted (replacement for existing panel assembly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eSystem Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eConventional, non-addressable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003eLocal fire alarm signaling and communication systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003e14 × 12 × 3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.9724%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 73.8945%;\"\u003e2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eSK-5204\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe SK-5204 replacement board is designed for use in Silent Knight 5204 conventional fire alarm control panels, providing the main system logic, power distribution, and control circuitry for four detection zones. It supports both 2-wire and 4-wire smoke detectors, offering flexibility in system design and upgrades. The board includes two supervised notification appliance circuits (NACs) rated at 1.5 amps each, supplying a total of 3 amps of power for horns, strobes, and other signaling devices. When paired with the optional 5205 Digital Communicator, the system can report alarms and supervisory conditions to a central monitoring station. This replacement board ensures continued reliable performance of legacy 5204 systems in commercial or institutional fire alarm installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFour Detection Zones: Supports up to four conventional input zones for flexible system configuration.\u003c\/li\u003e\n\u003cli\u003eDual Supervised NAC Circuits: Provides two 1.5A outputs for horns and strobes, ensuring signal supervision and reliability.\u003c\/li\u003e\n\u003cli\u003eHigh Output Capacity: Delivers a total of 3A for powering external devices such as annunciators or notification appliances.\u003c\/li\u003e\n\u003cli\u003eDetector Compatibility: Works with both 2-wire and 4-wire smoke detectors for broad system integration.\u003c\/li\u003e\n\u003cli\u003eOptional Digital Communication: Interfaces with the 5205 communicator for remote monitoring via central stations.\u003c\/li\u003e\n\u003cli\u003eEasy Replacement Design: Direct plug-in replacement for existing SK-5204 panels without requiring rewiring.\u003c\/li\u003e\n\u003cli\u003eFull Circuit Supervision: Monitors inputs and outputs for trouble conditions, maintaining NFPA compliance.\u003c\/li\u003e\n\u003cli\u003eDurable Construction: Engineered for long-term reliability in commercial fire protection environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SK-5204 delivers the reliability and precision required for maintaining operational fire alarm systems with robust power output, flexible detection compatibility, and optional remote communication.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":49105149329664,"sku":"SK-5204","price":2090.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/20200501_123608_edited.jpg?v=1785541342","url":"https:\/\/alotechparts.com\/products\/sk-5204-silent-knight-4-zone-fire-alarm-control-panel-replacement-board","provider":"Alo Tech Solutions","version":"1.0","type":"link"}