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| Task: | Program |
| Structure: | Closed-Loop |
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| General details | |
| Model | S521 |
| Main technical data | |
| .Start type | Direct on line |
| .Qty of controlled pump | Single pump |
| .Rated input voltage | AC220V-240V Single phase 50HZ/ 60HZ |
| .Rated output power | 0.37kw-2.2kw (0.5hp-3hp) |
| .Capacitor | Reserved space for installing start capacitor |
| Protection function |
Over load protection Pump stalled protection Dry run protection with sensor free Under voltage protection Over voltage protection |
| Application & Control characteristic |
Control and protect universal pump Using water level sensor or float switch 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 |
| Other features | Push button calibration Memory function when power off & recovery |
| 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 IP22 Wall mounting 170×155×85mm |
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