Auxiliary switches report the status of the main devices to which they are fitted. The devices in the DHi 2 series are auxiliary switches or error signal switches for residual current circuit-breakers in the DFS series, whereby the DHi 2 is suitable for RCCB with black toggle. They make it possible to indicate the operating status of a residual current circuit-breaker by using additional output devices (e.g. buzzers or indicator lights) or a control system. The function is set via a control element on the DHi. They signal the switch-on and switch-off of the RCCB in "auxiliary switch" operating mode; only tripping is signalled in "error signal switch" operating mode.

Auxiliary switch or error signal switch function, retro-fittable on residual current circuit-breakers in the DFS series, compact design

mounting by clamping to the left of the basic device , quick fastening to mounting rail, any installation position

These devices are suitable for querying the operating status of power supplies to residential and purpose-built buildings as well as to industrial facilities.

The auxiliary switch does not affect the function of the basic device.

• Operating instructions
• Data sheet
• Dimensional drawing Group view
• Wiring diagram