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Hunan Leading Science & Technology Development Co., Ltd.

Pump Control Panel, Control Box, Water Pump Conyrol Box manufacturer / supplier in China, offering Duplex Water Pump Control Box with IP 54, Single Phase, Pump Control Panel for Single Phase Motor (M921), Pump Controller for AC380V Three Phase Pump (L532) and so on.

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Supplier Homepage Product Single phase pump controller Duplex Water Pump Control Box with IP 54, Single Phase

Duplex Water Pump Control Box with IP 54, Single Phase

FOB Price: Get Latest Price
Min. Order: 50 Pieces
Production Capacity: 5000PCS/Year
Transport Package: Paper Carton
Payment Terms: T/T

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Basic Info
  • Model NO.: L522
  • Structure: Closed-Loop
  • Signal: Continuous
  • Certification: CE
  • Customized: Non-Customized
  • Degree of Protection: IP54
  • Weight: 3.15kgs
  • Trip Response Time of Over Load: 5sec-5min
  • Trip Response Time of Short Circuit: 0.1sec
  • Recovery Time of Dry Run: 30min
  • Trademark: Leading Science & Technology
  • Origin: China
  • Task: Program
  • Mathematical Model: Linear
  • Function: Automatic Control
  • Condition: New
  • Material: Plastic
  • Size: 30.2*24*12
  • Control Method: Manual/Auto
  • Trip Response Time of Open Phase: 2sec
  • Trip Response Time of Dry Running: 5sec
  • Liquid Level Transfer Distance: 1200m
  • Specification: CE
  • HS Code: 90328990
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
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