WKC 3 Pole 10kA MCB – 16A B Curve (WKC316B)
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WKC316B 3 Pole 10kA MCB is a 16A B Curve breaker built to protect three-phase circuits from overload and short-circuit faults. With a 10kA breaking capacity and full compliance with BS 7671 (18th Edition), it’s ideal for small commercial loads, EV charging boards, and solar PV installs. Compact and...
The WKC316B 3 Pole 10kA MCB is a 16A B Curve breaker built to protect three-phase circuits from overload and short-circuit faults. With a 10kA breaking capacity and full compliance with BS 7671 (18th Edition), it’s ideal for small commercial loads, EV charging boards, and solar PV installs. Compact and bi-directional, it fits standard DIN rail consumer units and distribution boards.
Installer Tip: Use B Curve devices for resistive loads such as lighting and socket circuits. For inductive or high inrush applications, see the C Curve or D Curve versions.
Key Features
- 16A rated current – protects medium three-phase loads
- B Curve tripping – fast disconnection for resistive circuits
- 10kA breaking capacity – reliable fault interruption
- 3 Pole design – safeguards three-phase circuits
- Bi-directional: wiring possible from top or bottom
- Applications: lighting banks, socket outlets, small three-phase boards
Compare 16A 3 Pole Variants
| Model | Curve | Rated Current | Breaking Capacity |
|---|---|---|---|
| WKC316B (This Product) | B Curve | 16A | 10kA |
| WKC316C | C Curve | 16A | 10kA |
| WKC316D | D Curve | 16A | 10kA |
Where should the WKC316B be used?
For three-phase systems protecting medium resistive loads such as lighting banks or socket circuits.
How does B Curve compare to C or D?
B Curve trips at 3–5x rated current. C Curve trips at 5–10x In for inductive loads, while D Curve trips at 10–20x In for heavy inrush loads.
Why choose a 10kA MCB?
It ensures safe fault disconnection even in commercial and industrial boards with high prospective fault currents.
Is it bi-directional?
Yes – wiring can be connected from either the top or bottom terminals.
Is this MCB EV and solar ready?
Yes – it is suitable for EV charger protection and solar PV boards.
- Product Code: WKC316B
- Type: Miniature Circuit Breaker (MCB)
- Poles: 3P (three-phase)
- Rated Current: 16A
- Curve: B Curve
- Breaking Capacity: 10kA
- Mounting: DIN rail (18mm per module)
- Functions: Overload & short-circuit protection, switching, isolation
- Compliance: BS 7671 (18th Edition)
- Endurance: 4000 mechanical / 2000 electrical operations
- Brand: WCED
Install in standard DIN rail consumer units or distribution boards. Curve selection is essential:
- B Curve: fast tripping for resistive loads (lighting, sockets)
- C Curve: for inductive circuits (motors, HVAC, EV chargers)
- D Curve: for high inrush applications (welders, transformers)
Always ensure the site fault level is suitable for the 10kA rating. Installations must comply with BS 7671 and be carried out by a qualified electrician.
