Product Description
Duplex Pump Control Panel L522
Application: Control&Protect Single phase Pump, DOL
Model L 522 is useful in all cases we need to control and protect duplex pump managing its turn-on and turn-off by different electric installations.
Our special design makes it a very reliable and sensitive protection against pump dry running without installation of any probe/sensor in the deep well.
Main Spec:
Rated Inupt Voltage: AC 220V/50HZ, Three Phase
Rated Output Power: 0.75w-2.2kw/3kw-4kw
Built in Function Switch:
Applied For Water Supply By Liquid Level Control or Booster
Applied For Drainage By Liquid Level Control
Main features:
-Auto/Manual Switch
-Double pumps control
Main Pump/Standby Pump Automatically Alternate
Main Pumps/Standby Pump Automatically Switch Against Malfunctions
Standby Pump Participate Running if Required.
-Starts and stops the pump in accordance with the different liquid level or pressure setting.
-Push Button Calibration
-Automaticlly stop the pump in the case of water shortage, protecting it from drying running without installing the float switch or liquid probe in the well.
-Pump accumulative running time displaying.
-Pump last five fault record displaying.
-LCD displays pump running information.
-Protect the pump against Over /Under Voltage; Open Phase; Over Current; Pump Shaft Rust; Rapid Cycle.
-Grade of Protection IP 54
Audited Supplier 
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