Wiltec Pressure switch

With this EPC-5 pressure switch including two cables, you can ensure a constant water pressure when using domestic waterworks, garden pumps and other water pumps. The switch monitors the water pressure and switches the pump off as soon as the defined pressure is reached. If the pressure drops, the pressure switch ensures that the pump is switched on again.

Thanks to the pump control, you can start and stop the water pump automatically depending on the opening and closing of the respective consumer. If there is a lack of water, the pump stops and the dry-running protection comes into effect.

The pump control consists of a hydraulic part and a replaceable electronic part:

The hydraulic part comprises
a shut-off valve
a valve that responds to changes in flow rate
a moulded and reinforced plastic body
a diaphragm and spring that respond to pressure changes
a safety valve to prevent water leaks if the diaphragm is damaged

The electronic part comprises
a sealed housing made of self-extinguishing, moulded plastic
a single, tested and approved electronic card with insulated conductors
a relay with a switching capacity of approx. 100,000 cycles in uninterrupted operation with a maximum load of 1.1 kW
a varistor against voltage peaks

If your pump has an output of more than 1.1 kW, you should connect a commercially available power contactor or an appropriate power relay upstream. 380/400 V three-phase pumps can also be controlled with a 380 V power contactor.

The pressure switch is supplied with two cables (earthing contact coupling/plug).