40A 4 Pole 10kA MCB C Curve – WKC440C A Type RCBO while the SPD safeguards against

while the SPD safeguards against overvoltages

Installer Tip: Choose the C Curve for circuits with higher inrush demand like EV charge points

and commercial lighting in distribution boards

heat pump and distribution board supplies – where the specification calls for fused isolation with SPD protection

40A 4 Pole 10kA MCB C Curve – WKC440C A Type RCBO while the SPD safeguards againstThe WKC440C is a 40A 4 pole 10kA Miniature Circuit Breaker (MCB) designed for three phase + neutral protection. With its C Curve trip profile, it is built for inductive load circuits such as motors, pumps, HVAC systems, EV chargers, and commercial lighting in three phase boards, EV installations, and solar PV setups. Rated to 10kA breaking capacity, the WKC440C provides safe overload and short circuit protection while ensuring complete neutral