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bi-directional wiring for solar PV and inverter systems
and multiple knockouts to simplify installation
40A 30mA RCD – earth leakage and fault protection
For installers
WKC 3 Pole 10kA MCB – 20A B Curve (WKC320B) A Type RCBO bi-directional wiring for solar PVThe WKC320B 3 Pole 10kA MCB is a 20A B Curve breaker designed to protect three phase circuits against overloads and short circuits. With a 10kA breaking capacity and compliance to BS 7671 (18th Edition), its a trusted choice for industrial boards, EV charger setups, and solar PV installs. Compact, bi directional, and DIN rail mounted, it provides safe and reliable disconnection in demanding applications. Installer Tip: The B Curve version is
US$ 120.00
US$ 20.00
US$ 75.00
US$ 32.00
US$ 540.00
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US$ 20.00
US$ 125.00
