Can the C120H and iC120H MCBs be fitted into the Isobar and Acti 9 distribution boards?

No, the Isobar and Acti 9 distribution boards are designed for the C60H and iC60H range of circuit breakers as outgoing devices.

The C120H and iC120H circuit breakers do not fit because they are 27mm wide per pole, where as the C60H range are 18mm wide per pole.
It is possible to feed/cable off the pan assembly using the SEA9TB1001 terminal block (1 per phase) and cable into a din extension enclosure with the C120H or iC120H breakers in but only to a maximum of 100amps.

Released for:Schneider Electric Ireland