LFHSHR3 Cooper Wheelock Exceder LED3 520 Hz Low Frequency Sounder Strobes - FIRE

Eaton has developed the Wheelock Exceder LED3 Low Frequency Sounder Strobes (LFHSK3/LFHSH3) and Sounders (LFHNK3) to meet the National Fire Protection Association (NFPA) low frequency sounder requirements for sleeping rooms

Specifications

Physical

• Material - Red or white textured UV stabilized, colored impregnated engineered plastic. Exceeds 94V-0 UL flammability rating
• Weight - 1.10 lbs.
• Lens - Light Emitting Diode (LED) in a rugged Lexan lens
• Dimensions - 6.23"H x 4.69" W x 1.77" D (with LFTP trim plate)
• Operating Temperature - Indoor: 32°F to 122°F (0°C to 50°C) and maximum humidity of 93%

Mounting & Wire Connections

• Mounting (indoor only) - Wall-mount applications for sounder strobe (LFHSK3/LFHSH3); Wall and ceiling-mount applications for the sounder only model (LFHNK3). Trim plate for single-gang backbox included in all LFHNK3/LFHSK3/LFHSH3 models; Exceder LSPKBB backboxes and 4" square backboxes
• Wire Connections - #12 through #18 AWG

Power & General

• Operating voltage - 24 VDC: 16 - 33 VDC
• Strobe Output Rating - UL 1971: 110 candela output (LFHSK3 models)/ 177 candela output (LFHSH3 models)
• Strobe Flash Rate - Strobes are designed to flash at 1 flash per second
• Synchronization Models - Strobes can be synchronized with Wheelock's DSM Sync Modules, PS Power Supplies, using Wheelock patented sync protocol
• Temporal Audible Pattern - Continuous, Code 3, Code 4 or Code 3/Code 4 Sync Control. The Code 3 temporal pattern (1/2 second on, 1/2 second off, 1/2 second on, 1/2 second off, 1/2 second on, 1-1/2 off and repeat) is specified by ANSI and NFPA 72 for standard emergency evacuation signaling. The Code 4 temporal pattern (four cycles of 100 milliseconds 10 percent on and 100 milliseconds 10 percent off, followed by 5 seconds 10 percent off)is specified by NFPA 720

LFHSHR3 Specification Sheet