Intelligent Pump Control Box, Model M521 is applied for automatic liquid level control, pressure control and protection for submersible pump / centrifugal pump / pipeline pump / sewage pump etc with AC220V (50hz) / AC230V (60hz), single phase, 0.37-2.2kw (0.5hp-3hp), direct start type.

Features:

1. Built in Pressure Control or Liquid Level Control Switch:

Applied For Water Supply By Liquid Level Control Through Float Switch or Liquid Probe

Applied For Water Supply By Pressure Control Through Pressure Switch And Pressure Tank

Applied For Drainage By Liquid Level Control Through Float Switch or Liquid Probe

2. Computer Main Board And Module For Industrial & Civil Pump

3. Auto / Manual Switch

4. Automatic Stops The Pump In The Case Of Water Shortage, Protecting It From Dry

    Running Without Installing Float Switch Or Liquid Probe In The Well

5. Over Current (Over Load) Protection

6. Under Voltage Protection         

7. Over Voltage Protection

8. Pump Motor Stalled Protection

9. Digital Voltmeter & Ampere Meter Real-Time Display

10.Light Alarm Signals Of Malfunction

11.Push Button Calibration

12.Light Signals prompt For Uncompleted Parameter Calibrating

13.Starts And Stops The Pump In Accordance With The Different Liquid Level or Pressure

     Setting

14.Present Liquid Level Probe

15.User Friendly Connection Diagrams

16.Integrated Design, Small Size, Easy To Install

17.Reserved Space For Installing Internal Start Capacitor Of Pump Motor

1. Rated Input Voltage:  AC220V / AC230V / AC240V Single Phase (at option)

2. Rated Frequency: 50Hz / 60Hz (at option)

3. Rated Output power of pump motor: 0.37-2.2kw(0.5hp-3hp) (at option)

4. Over / Under Voltage Trip: ±15%

5. Dry Running Trip: 70%  

6. Pump Stalled Trip: 200%

7. Over Current Trip Response Time:  5sec-5min          

8. Pump Stalled Trip Response Time: 0.5sec

9. Dry Running Trip Response Time: 6sec

10.Over / Under Voltage Trip Response Time: 5sec

11.Recovery Time Of Over Current Protection: 30min

12.Recovery Time Of Dry Running Protection: 30min

13.Recovery Time Of Under / Over Voltage Protection: 5min

Dimension:

160(L) x 82(W) x 228(H) mm