1600 121ST ST SE BLDG L 2025-12-02

FIRE ALARM • '• PANEL SILENT SK-4 & SK-4E Fire Alarm KNIGHT Control Panel by Honeywell 4-zone fire protection at a price that won't burn your budget. The SK-4 and SK-4E (SK-4/E) are four zone conventional fire alarm control panels (FACPs) that bring the latest in microprocessor technology to conventional fire controls. The SK-4 is a 120 VAC FACP and the SK-4E is a 240 VAC FACP. These FACPs provide reliable fire signaling protection for small- to medium-sized commercial, industrial, and institutional buildings. For more information about the SK-4/E system, or to locate your nearest source, please call 1-800-328-0103. Description Selectable for System Sensor, The four zone SK-4/E is a 24 VDC Wheelock, and Gentex protocols FACP that provides four Class B • Selective silence feature allows initiating device circuits and two Class manual silence of horns while strobes B notification appliance circuit (NAC). continue to flash on the same NAC • Program for combination tamper The SK-4/E NAC protocol includes the supervisory monitor and waterflow ability to silence audible devices while alarm on one zone strobes continue to flash, using only a . Silent or audible walk test operation single pair of wires. The SK-4/E is also mode compatible with conventional input . Alarm verification selectable per zone devices such as two-and four-wire smoke detectors, pull stations, Program each zone for supervisory or fire with separate red and yellow waterflow devices, tamper switches and LEDs other normally-open contact devices. • Disable switches provided per zone Activation of a compatible smoke • Program NACS for detector or any normally-open fire —Silence inhibit alarm initiating device activates audible —Auto silence SK-4 and visual signaling devices, illuminates —Strobe synchronization an indicating LED, sounds the piezo —Temporal or steady signal NACs sounder at the FACP, activates the Signaling Current: 2.5A @ 24 VDC FACP alarm relay, and operates an —Silenceable or nonsilenceable with standard transformer or 5A optional module used to notify a remote —Disable total (2.5A per NAC)with additional station or initiate an auxiliary control Form C alarm, trouble, and optional transformer, power-limited function. supervisory relays EOL Resistor:4.7K ❑, 1/2 watt • 3A total usable current Form C Relays The SK-4/E is compatible with System Types:Trouble, alarm, and Sensor® 13 detectors providing 6A total usable current with optional supervisory second transformer(PN SK-TRM24 Contact Ratings: 2A @ 30 VAC, advanced features such as drift or SK-TRM24E) resistive compensation, maintenance alert, and Optional dress panel (PN SK-DP2/4) Auxiliary Output freeze warning.Automatic Resettable and non-resettable synchronization of audio/visual devices Electrical Specifications Operating Voltage: 24 VDC nominal is provided, using three selections for SK-4 Primary AC: 120 VAC @ 50/60 Current: 500 mA max, power-limited; manufacturer protocol. Hz, 2.3A total current for nonresettable power, Features SK-4E Primary AC: 240 VAC @ 50 Hz, resettable power and two NACs must 1.15A not exceed 6.OA(requires additional • Four Style B (Class B) initiating Wiring: 14 AWG (2.0 mm2)with 600 V transformer) device circuits (IDCs) insulation min • Two Style Y(Class B) notification Initiating Device Circuits (IDCs) appliance circuit(NAC) Operating Voltage: 22 VDC nominal; • Optional module converts all IDCs power-limited and NACs to Class A(PN SK-CAC4) Standby Current: 4 mA • Support for synchronization ofAlarm Current: 15 mA min standard ANSI audible signals and Short-circuit Current: 40 mA max ADA compliant strobes per NF 72 Loop Resistance: 100❑ max EOL Resistor: 4.7K Q, 1/2 watt