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SPDT Relay  





110 / 220 VAC


Power Loss Sensor 


                SPDT relay (NO/NC) contacts isolated from power
  Plugs into most US wall outlets
  Low cost power loss detection for PLCs and control systems






Part Number PLS1

Design considerations

The PLS1 is a low cost way to detect a power loss condition for a PLC, process control meter, distributed control system (DCS), or other industrial control system. The PLS1 can be mounted on any standard US wall outlet (110VAC / 220VAC) and the wires can be coonected to the normally closed (NC) or normally open (NO) terminals.

The ALS1 is designed for low cost applications where standard accuracy is acceptable.

Because the ALS1 has a PVC housing,  care should be taken to insure that the operating environment does not get so hot that the PVC housing will soften. This may happen at temperatures around 180 to 190 degrees F.

The ALS1 should not be used as the sole sensing element in critical equipment or safety applications. 



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