Hunan, China
Business Type:
Manufacturer/Factory, Trading Company, Other
Management System Certification:
ISO 9001, ISO 14001
OEM/ODM Service
Sample Available
MEI Awards

Pump Control Panel, Single Pump Control Box, Pump Controller manufacturer / supplier in China, offering Electrical Pump Control Panel S521, Water Pump Control Panel L932, Three Phase Single Pump Controller (M931) Which Has Phase Unbalance Protection and so on.

Diamond Member Since 2012
Audited Supplier

Electrical Pump Control Panel S521

Min. Order: 1 Piece
Port: Shanghai, China
Production Capacity: 5000PCS/Year
Payment Terms: T/T, Western Union
Task: Program
Structure: Closed-Loop
Mathematical Model: Linear
Signal: Continuous
Function: Automatic Control
Rated Output Power: 0.37kw-2.2kw (0.5HP-3HP)

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Basic Info.

Model NO.
Rated Input Voltage
AC220V/50Hz Single Phase
Trip Response Time of Over Load
Trip Response Time of Short Circuit
Trip Response Time of U / O Volta
Trip Response Time of Dry Run
Working Humidity
20% - 90%Rh, No Drips Concreted
Transport Package
CE, ISO9001: 2008
Changsha, Hunan
HS Code
Electrical pump control panel

Since 2001, Hunan Leading Science & Technology Development Co., Ltd is the professional manufacturer of intelligent pump control system applied for monitoring and protecting of pumps in home and industry use.
Till now, Leading Science & Technology we have passed CE, ISO9001: 2008 certificate.

Main features
1. Built In function switch;
2. Applied for water supply by liquid level control through float switch;
3. Applied for water supply by pressure control through pressure switch and pressure tank;
4. Applied for drainage by liquid level control through float switch;
5. Automatic stops the pump in the case of water shortage, protecting it from dry running
Without installing float switch in the well;
6. Auto / Manual switch;
7. Dynamic LCD displaying pump running state;
8. Protect the pump against many faults;
9. Push Button Calibration;
10. Starts and stops the pump in accordance with the different liquid level or pressure setting;
11. Reserved space for installing internal start capacitor of pump motor.

Model S521 is useful in all cases we need to control and protect single pump managing its turn-on and turn off by different electric installations.

Typical usage scenarios include:
-Holidays houses
-Water supply from wells
-Irrigations of greenhouses, gardens, agriculture
-Rain water reuse
-Industrial plants
-Waste water tank / Sewage sink

1. Water pump network remote monitor;
2. Water pump GSM message remote monitor;
3. Central group control network systems;
4. Intelligent digital water pump controller with sensor free;
5. Computer chip of intelligent digital water pump control;
6. Water pump intelligent one button fast parameter calibration;
7. Water control anti-corrosion, enviromment-friendly probe;
8. Water pump shaft anti-rust function;
9. Liquid level no sensor application;
10. Win credit grade-AAA enterprise certification;
11. Win Hunan good quality and be reliable enterprise;
12. The appointed product of Hunan flood control and drought relief command office.

Main technical characteristic
Control characteristic
double liquidlevel control
pressure control
Control methodManual/Auto
Liquid levelcontrol characteristicfloat switch
Pressure control characteristicpressures witch(n/c) & pressure tank

Main technical data
Rated output power0.37KW-2.2KW  (0.5HP-3HP)
Rated input voltageAC220V/50HZ    SinglePhase
Trip response time of overload5sec-5min
Trip response time of short circuit<0.1sec
Trip response time of under/over voltage<5sec
Trip response time of dry run6sec
Recovery time of over load30min
Recovery time of under/over voltage5min
Recovery time of dry run30min
Trip voltage of over voltage253V
Trip voltage of under voltage175V
Dry run
Over load
Transient surge
Under voltage
Over voltage
Pump stalled
Short circuit
Main installation data
Working temperature-25ºC--+55ºC
Working humidity20%-90%RH, no drips concreted
Degree of protectionIP22

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