SED-57R16-4N2R

Features: 
520 Hz alarm
SPL of 75 dB(A) at 10 feet (3 meters)
Suitable for fire and smoke alarms
Residential and Hotels
Low frequency ideal for Senior living areas
Characteristic Minimum Rated Maximum Notes
Type of Magnet NdFeB
Type of Frame Metal
Type of Diaphragm PET
Type Magnetic
Sound Pressure Level dB at 30cm 95 75dB(A) / 300cm / 520Hz / 5.66 Vpp square wave
Power W 2 3
Frequency kHz 0.52 ± 10 %
Available Input Impedance Ω 4 ± 15 % at 1500Hz
Temperature ºC -20 70
Width mm 57 57
Height mm 15.7
Mounting Custom
Termination lead wire
Characteristic Response: 

Dimension Drawing: