Switch-disconn. compact, 80A, 4NO, N left
Switch-disconnectors and main switches disconnect electrical consumers or system parts completely from the electrical supply at all terminals. They also switch under load or in the event of overload. They are used to switch off electrical consumers for maintenance work and to protect the system. Devices in the DHS 4 family are load isolators and main switches with a four-pole design, for which the N-contact is switched on in advanced mode and switched off in lagging mode. Their design makes them excellent for integration in the optics of the DFS residual current circuit-breakers. The DHS devices can be extended by an auxiliary or error signal switch, which allows for the display and further processing of the switch position.