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The 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), it’s 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 recommended for resistive circuits (lighting, socket outlets). For inductive or high inrush loads, consider the C Curve or D Curve options.
Key Features
- 20A rated current – for medium-duty three-phase loads
- B Curve tripping – fast disconnection for resistive circuits
- 10kA breaking capacity – safe fault clearance in commercial/industrial boards
- 3 Pole design: full three-phase protection
- Bi-directional: wiring from top or bottom
- Applications: lighting, socket outlets, small distribution boards, EV/PV circuits
Compare 20A 3 Pole Variants
| Model | Curve | Rated Current | Breaking Capacity |
|---|---|---|---|
| WKC320B (This Product) | B Curve | 20A | 10kA |
| WKC320C | C Curve | 20A | 10kA |
| WKC320D | D Curve | 20A | 10kA |
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