| Customization: | Available |
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| Task: | Program |
| Structure: | Closed-Loop |
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The M931 Model revolutionizes pump operation with its multiple modes achieved through varied electrical installations. Its standout feature, the lack of a probe or sensor in the well, sets it apart from typical On/Off pump control boxes. This innovative design ensures unmatched reliability and sensitivity, safeguarding against pump dry run without the need for in-well probes or sensors.
| General details | |
| Model | M931 |
| Main technical data | |
| Start type | Direct on line |
| Qty of controlled pump | Single pump |
| Protection method | Real motor running ampere |
| Rated input voltage | AC380V Single phase 50HZ/ 60HZ |
| Rated output power | 0. 75kw-4kw (1hp-5.5hp) 5.5kw-11kw (7.5hp-15hp) 15kw (20hp) |
| Protection function |
Over load protection Pump stalled protection Dry run protection with sensor free Under voltage protection Over voltage protection Repeat start protection Phase unbalance protection Phase reversal protection Open phase protection |
| Application & Control characteristic |
Control and protect general pump Using water level sensor , float switch or pressure switch or level/pressure transmitter to control pump start and stop 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 Applied for drainage by level transmitter Applied for water supply bu pressure transmitter Applied for water supply by level transmitter |
| Other features | Pump last five faults record displaying Pump accumulative running time displaying Pump shaft anti-rust LCD screen locked function under anto state Present RS485 port |
| Main installation data | |
| Working temperature Working humidity Degree of protection Install position Unit dimension (L x W x H) |
-25ºC-- +55ºC 20%--90%RH, no drips concreted IP54 Wall mounting 250×197×114mm |
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