Gold Member Since 2012
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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 Submersible Pump Control Box L531, Perfect Performance Electrical Pump Control Cabinet, Automatic Pump Flow Pressure Controller and so on.

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Supplier Homepage Product Single phase pump controller Submersible Pump Control Box L531

Submersible Pump Control Box L531

Purchase Qty.:
(Pieces)
50-199 200+
FOB Unit Price: US $78 US $68
Purchase Qty. (Pieces) FOB Unit Price
50-199 US $78
200+ US $68
Get Latest Price
Port: Shanghai, China
Production Capacity: 5000PCS/Year
Payment Terms: T/T

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Basic Info
  • Model NO.: L531-U
  • Structure: Closed-Loop
  • Signal: Continuous
  • Certification: CE
  • Customized: Non-Customized
  • Protection Grade: IP54
  • Weight: 2.3kgs
  • Transport Package: Paper Carton
  • Origin: China
  • Task: Program
  • Mathematical Model: Linear
  • Function: Automatic Control
  • Condition: New
  • Material: Plastic
  • Size: 30.2*24*12
  • Trademark: Leading Science & Technology
  • Specification: CE
  • HS Code: 90328990
Product Description

Single pump control panel L 531
Application: Control & protect three phase pump, DOL

Model L531 is useful in all cases we need to control and protect single 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 380V/50HZ, Three Phase
Rated Output Power: 0.75KW-4KW / 5.5KW-11KW / 15KW

Main Features:
-Built in function switch:
Applied for water supply by liquid level control or booster
Applied for drainage by liquid level control

-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; Open Phase; Over Current; Pump Shaft Rust; Rapid Cycle etc.
-Grade of Protection IP 54
-Visual & Audio alarm for fault prompt
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