20A 4 Pole 10kA MCB B Curve – WKC420B 4 & 5 pole MCBs (&Shunt Trip) or solar inverters that can

or solar inverters that can cause high start-up currents

Built to BS 7671:2018 (18th Edition) standards

and industrial machinery

Fully compliant with BS EN 61009

20A 4 Pole 10kA MCB B Curve – WKC420B 4 & 5 pole MCBs (&Shunt Trip) or solar inverters that canThe WKC420B is a 20A 4 pole 10kA Miniature Circuit Breaker (MCB) designed for three phase + neutral protection. With its B Curve trip characteristic, it is best suited for resistive loads such as small power circuits, lighting systems, and distribution boards in three phase networks, EV charger boards, and solar PV installs. Offering a 10kA breaking capacity, the WKC420B provides reliable overload and short circuit protection while isolating all live