The A9D97420 is a 4-pole Acti9 iC60 RCBO — a combined residual-current circuit breaker with overcurrent protection, rated 20 A with 30 mA earth-leakage sensitivity. The B-curve characteristic (3 to 5 x In magnetic trip) means it's sized for resistive or light inductive loads — lighting, small heaters, control transformers — where inrush isn't a concern. The 9 mm pole pitch keeps the width to 72 mm for the 4P version — eight 9 mm pitches total. Strip 12 mm for the connection. That's a straightforward fit for a panel OEM or a swap on an existing Acti9 board.
Compliance and approvals at a glance
Overvoltage category III per IEC 60364.
