Application: Control & Protect single phase pump, DOL
Duplex Pump Control Panel Model L922
Model L922 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 Input Voltage: AC 220V/50HZ, Single Phase
Rated Output Power: 0.37-2.2KW/3-4KW
Main features:
-Double pumps control
Main pump/standby pump automatically alternate
Main pumps/standby pump automatically switch against malfunctions
Standby pump participate running if required.
-Auto/Manual switch
-Starts and stops the pump in accordance with the different liquid level or pressure setting.
-Push Button Calibration
-Automatically 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; Over Current; Pump Shaft Rust; Rapid Cycle etc.
-Grade of Protection IP 54
-Visual & Audio alarm for fault prompt
-Present remote monitor
-Present one dry contacting point
-Visual & Audio alarm for fault prompt.
Audited Supplier 
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