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System Sensor B224RB Intelligent Relay Base (Replaced by B224RB-IV)
It is also compatible with 400 Series products from System Sensor
The P2RH-LF also features field-selectable candela settings on wall units (135
System Sensor’s 5600 series mechanical heat detectors offer a low-cost means for property protection against fire
Potter PCVS-2 PCVS Control Valve Supervisory Double Switch P2WH-LF System Sensor B224RB Intelligent RelayThe Potter PCVS 2 is a durable and reliable switch designed for monitoring the open position of fire sprinkler control valves It is suitable for wall and yard post indicator and butterfly valve types. The switch features two SPDT (Form C) contacts that activate when the valve position changes from an open state. NEMA 4X (IP 65) and 6P (IP 67) 40 to 140 ( 40C to 60C) operating temperature range Visual Switch Indicators