4B Detector Base 517.050.041


1,783.36 1,683.36



4B 517.050.041 Universal Detector base is used when a short circuit isolator or continuity functionality is not required.


Continuity, Isolator and Universal variants
Quick and easy to install
Compatible with 800, 814, and 850 Series detectors
Park position for testing
Optional detector locking device
Slim 4-inch profile
Snap-fit to Ceiling Tile Adaptor

Technical Specifications

Supply Voltage 20 to 40Vdc MX Loop
Supply Current 80µA typ. (quiescent 4B-I)
Tripped Current 3.5mA (max. 4B-I)
Dimensions (H x Dia) 25 x 109 mm
Weight 64g
Material Flame Retardant ABS
Color White (optional Pantone colors for detector covers & 4B-C bases)
Ambient Temperature –25°C to +70°C
Storage Temperature –40°C to +80°C
Relative Humidity 10% to 95% (non cond.)



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