Centrifugal Pump controllers

Ktech Industrial Products Inc.’s new Pump controllers automatically operate a pump to control the level of a liquid in a tank. Pump controllers are used in conjunction with Ktech Multi-level float switches. Two contacts are used to start and stop the pump. A relay circuit switches power to the fractional horsepower pump motor or to the three-phase contactor of a large pump motor. Similarly, the switch contacts can be used to operate solenoid valves. Additional contacts are used to indicate an alarm condition.

These alarms provide an audible and visual signal. The audible signal can be muted after which the warning light remains on until the alarm condition is corrected. Features include: thermomagnetic motor protector; single pole circuit breaker and overload relay; across-the-line contactor; control transformer; pump alternator; power, alarm and pump on pilot lights; hand/auto selector switch; and PC1139A alternating pump controllers. Model PC1103A Alternating pump controllers provide a high and low level alarm and an alternating pump control for two pumps. It is used in conjuction with the Model FS301-4 Float switch.