The ABB RC222/1 FOR T1 4P F is an RC222/1 residual current release for the Tmax T1 moulded-case circuit breaker. It is an accessory, not a standalone device: it mounts onto the breaker and adds earth-fault protection to the breaker's existing overcurrent release, so an installed T1 can be given residual current protection without replacing the breaker or altering the busbar work. This version is for 4-pole breakers. Trip sensitivity and time delay are adjustable on the release, so the setting can be co-ordinated with the residual current devices downstream. The CE declaration for the assembly is the one belonging to the circuit breaker it is fitted to. Supplied by cBallast on quote-to-invoice terms; lead time and freight are quoted per RFQ against the destination Incoterm.