Littelfuse 355-200 Three-Phase Voltage/Phase Monitor Plumbing__Pressure Gauges the alternating relay changes state

the alternating relay changes state forcing the other pump to run the next time the float closes

75HP 15GPM

Littelfuse CT-300-D-10 Current Transformer Typical Application

Driver Coupling Typical Application

Zoeller Model G139 Sump & Effluent Pump Features and Benefits

Littelfuse 355-200 Three-Phase Voltage/Phase Monitor Plumbing__Pressure Gauges the alternating relay changes stateLittelfuse 355 200 Voltage Monitor Product Description The 355 is a 3 phase voltage monitor with adjustable trip and restart delay, adjustable voltage unbalance and multiple diagnostic lights. It is perfect for heavy duty applications that need both protection and simple user friendly diagnostics. Applications include pump panels, commercial HVAC, oil rigs and others. The 355 uses microcontroller technology to monitor incoming voltage and de energize