- 250x200x140 mm ABS plastic box with hinges and transparent polycarbonate lid.
- Contactor and overload relay of the requested trademarks.
- Protection against lack of water by a level relay .
- Automatic, Manual or Off mode system controlled by a 3 positions toggle switch with rubber cap.
- Start/Stop remote control connection (P11-P12) (pressure-switch, float-switch or other).
- Protection against short-circuits by a circuit breaker.
- Protection against overloads by an overload relay.
- Lack of water indication (red LED on the level relay).
- Automatic mode system indication (yellow signal lamp).
- Running motor indication (green signal lamp).
- Overload trip indication (red signal lamp).
- 4 cable glands for connection cables.
Control and protection of water pumps used on pressurized water supply and irrigation systems, through water extraction in wells, artesian holes or other reservoirs.
After effectuating correctly all the connections, the overload relay must be adjusted according to the motor's nominal intensity. The control box will maintain all the signaling OFF till the toggle switch is switched over the automatic mode (AUT), turning ON the yellow signal lamp.
If the start/stop control (P11-P12) closes, the level relay turns ON (yellow LED on the level relay), and makes the reading of the water level through the level probes (in the well, artesian hole, deposit, etc). If water is above the maximum level probe, the level relay indicates ON (green LED in the level relay) and the pump turns ON (green signal lamp), turning OFF if the start/stop control reopens or if the water comes down beyond the minimum level probe (red LED on the level relay).
When the toggle switch of the control circuit is switched over the manual mode, the pump turns ON, independently of the state of the start/stop control (P11-P12).
The trip of the overload relay due to an overload (red signal lamp) turns OFF the pump, independently of the state of the other controls.
Level Control Box for Well