Tyco 4B-C Continuity Base 4" 600/900 Series 517.050.401

The Tyco 4B-C 517.050.042 Continuity Base is used for installations that involve the Tyco 850 series detector range. The Tyco 4B-C allows the detector´s in-built short circuit isolation function to be in-circuit when the detector is fitted and ensures continuity is maintained when the detector is removed.

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.)

The Tyco 4B-C Detector Base is suited for:
601F 516.600.006 IR Flame Detector
601FM 516.600.007 Point Flame Detector
811F 516.800.007 Flame Detector
601H-M Heat Detector
601H-R-M 516.600.203 Rate of Rise Heat Detector
611HF 516.600.214 Fixed Heat Detector 60ºC
631HF 516.600.033 Fixed Heat Detector 90ºC
801H 516.800.502.Y Heat Detector
811H 516.800.509.P Heat Detector
850H 516.850.053 Heat Detector
811CH 516.800.508 Multisensor
801PH 516.800.500.Y Multisensor
811PH 516.800.507.P Multisensor
850PH 516.850.051 Multisensor
851PH 516.850.055 Multisensor
601I 516.600.005 Ion Chamber Smoke Detector
601P 516.600.001 Optical Smoke Detector
601PH 516.600.002 Optical Smoke Detector
601P-M 516.600.201 Optical Smoke Detector
601PH-M 516.600.202 Optical Smoke Detector
850PC 516.850.054 Multisensor
MR601 516.056.001 Optical Smoke Detector

Please contact us for more information.