The PlusLink extension must be integrated into one or more PlusLink lines if they are protected by at least two circuit breakers. If a circuit breaker is triggered during maintenance work or in the event of a fault, the PlusLink extension automatically disconnects the PlusLink line. This is necessary because the PlusLink line would continue to be live via the other circuit breakers. Suitable for mounting on TH35 top hat rails in accordance with EN 60715. With screw terminals. Nominal voltage AC 220/230 V. Neutral conductor required (3-conductor system). Connection cross-section max. 4 mm². Device width 1 TE corresponds to 18 mm.