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The Edwards Est SIGA-CRR Polarity Reversal Relay Module provides a Form “C” dry relay contact to power and activates a series of SIGA-AB4G Audible Sounder Bases
The 3-CPU3 ships without
Please refer to the APS2-6R manual for more information
SEMS screws with clamping plates for ease of wiring
This detector-type is commonly found on the following Siemens – Fire Safety fire alarm control panels: TXR-320
System Sensor 5251RB Rate-of-Rise Thermal Detector Mircom MIX-M500X The Edwards Est SIGA-CRR PolaritySystem Sensor 5251RB is a rate of rise temperature sensor with 135F fixed temperature alarm. The model 5251RB System Sensor is intelligent sensor that utilize a state of the art thermistor sensing circuit for a fast response. These sensors are designed to provide open area protection with a 50 foot spacing capability. Model 5251B is a fixed temperature sensor with a 135F fixed temperature alarm. Model 5251RB System Sensor is a rate of rise temperature
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