Command and Protection Framework

Quadro Discontactor de Protecção

Control and protection of electric pumps used in the supply of water under pressure and irrigation systems, through the extraction of water in wells or other reservoirs.

Apresentação

- Plastic box 250x200x140 mm in gray ABS RAL7035 with hinge and transparent polycarbonate lid.
- Chint thermal relay and contactor.
- Automatic operation or off, commanded by a 2-position switch.
- Connection for remote start/stop command (pressure switch and float).
- Protection against short circuits through circuit breaker.
- Protection against overloads through thermal relay.
- Indication of engine on (green light).
- Indication of thermal trip (red light).
- 4 cable glands, for passing the connection cables.

Como Funciona

After making all the connections correctly, the thermal relay must be adjusted according to the nominal current of the motor. The panel must have all signals turned off until the switch of the command circuit is turned on to the on (I) position.

If the start/stop command closes, the pump turns on (green light), turning off if the start/stop command opens.

Tripping of the thermal relay due to overload (red light) switches off the pump, regardless of the status of the controls.