The Acti9 A9F18316 is a 1 Pole + Neutral (1P+N), 16 A, C-curve miniature circuit breaker with integrated Type A residual current protection (30 mA). This compact, all-in-one device combines overcurrent/short-circuit protection and earth leakage protection in a single module. It is designed for final circuit protection in residential, commercial, and light industrial electrical installations, where it provides essential protection against electric shock and fire risks caused by insulation faults.