The Schneider Electric A9DE3716 is an Acti9 iCV40 residual-current circuit breaker with overcurrent protection (RCBO), combining a 16 A thermal-magnetic trip unit (curve C, magnetic tripping between 5 and 10 times In) with an integrated 30 mA earth-leakage sensor in a single 3P+N module. The RCBO clips onto a DIN rail (mounting support: DIN rail, clip-on) and occupies 10 x 9 mm pitches — 90 mm width — with the neutral on the left. The tunnel-type terminals accept 1 to 16 mm² rigid or 1 to 10 mm² flexible conductors; tightening torque is 2 N.m top or bottom. The IP20 rating on the body (IP40 in a modular enclosure) means it is suitable for installation inside a distribution board that provides the final enclosure seal.
Deployment context
This RCBO is intended as an outgoer device in a distribution board (device location in system: outgoer; device application: distribution). The 30 mA earth-leakage protection is mandatory in many national wiring codes for circuits supplying socket outlets and portable equipment. The pollution degree 3 rating and overvoltage category III (IEC 60364) confirm it is designed for fixed installation in a building's main or sub-distribution board, not for outdoor or wet-location mounting without additional enclosure protection.