The Schneider Electric A9N19641 is an Acti9 DPN Vigi earth leakage circuit breaker — an RCBO that combines overcurrent protection (6 A, C curve) and residual current protection (30 mA) in a single 1P+N module. That makes it suitable for circuits feeding IT equipment, LED lighting, or small drives where a standard Type A would false-trip.
Rated Icn of 6000 A at 230 V AC per EN 61009. That is the standard domestic and light commercial interrupting rating in most European installations. The 6 A C-curve thermal-magnetic trip unit provides magnetic tripping between 5 and 10 x In, so it clears moderate inrush from small motor loads or capacitive supplies without delay. For selectivity with an upstream 63 A gG fuse or a 16 A MCB, the 6 kA rating is adequate for typical fault levels in final sub-circuits; coordination tables should be verified at the design stage.
Snaps onto standard DIN rail. Neutral is on the left, phase on the right; the outgoing terminals accept up to 10 mm² flexible or 16 mm² rigid cable via tunnel-type terminals. The toggle provides local ON/OFF indication, and the contact position indicator confirms the main contacts are open.