Detailed Product Description
| Size: | Medium | Packing: | Carton |
|---|---|---|---|
| Input Voltage: | AC220V/50HZ | Phase: | Single Phase |
| Rated Output Power: | 0.37kw-2.2kw | Protection Grade: | IP22 |
Support installing start capacitor, deep well/borehole pump control box
M521 is a single phase pump control panel for protecting and control single phase pump with power range from 0.37-2.2kw. It can be used for borehole pump, booster pump, submersible pump, surface pump, sewage pump,etc.
M521 has three applications for different usage. Water supply by connecting liquid probe or float switch. Water supply by connecting pressure switch and pressure tank. Sewage/drainage by connecting float switch.
The most highlighted protection is dry run protection with sensor free. After a new pump installed, users need to do calibration on M521. M521 will memorize the working current. When the currect drops to 70%, M521 will take dry run protection and stop the pump. After 30 minutes, M521 will restart the pump if there is enough water in the well.
| Main technical characteristic | |
| Control characteristic | Double liquid level control |
| Pressure control | |
| Control method | Manual/Auto |
| Liquid level control characteristic | Float switch |
| Pressure control characteristic | Pressure switch(n/c) & pressure tank |
| Main technical data | |
| Rated output power | 0.37KW-2.2KW (0.5HP-3HP) |
| Rated input voltage | AC220V-240V 50HZ/60HZ SinglePhase |
| Trip response time of overload | 5sec-5min |
| Trip response time of short circuit | <0.1sec |
| Trip response time of under/over voltage | <5sec |
| Trip response time of dry run | 6sec |
| Recovery time of over load | 30min |
| Recovery time of under/over voltage | 5min |
| Recovery time of dry run | 30min |
| Trip voltage of over voltage | 253V |
| Trip voltage of under voltage | 175V |
| Protection function | Over load protection Pump stalled protection Dry run protection with sensor free Under voltage protection Over voltage protection |
| Main installation data | |
| Working temperature | -25ºC–+55ºC |
| Working humidity | 20%-90%RH, no drips concreted |
| Degree of protection | IP22 |
| Install position | Vertical |
| Unitdimensions(LxWxH) | 170×155×85mm |
