Provided with a safety handle with padlock holder (up to 3 simultaneous padlocks) it has 3 switching positions (On, 0 and Earth). In the On position, the load is connected directly to the network for normal operation. In position 0 the circuit is disconnected.

In the Earth position, the network is disconnected from the circuit and the circuit is connected to the installation’s ground. In this way, any remaining charges, for example, are discharged through the ground, enabling safe maintenance of the equipment, without the risk of electrical discharges originating from the circuit during maintenance.