WKC 3 Pole 10kA MCB – 16A B Curve (WKC316B)
£12.35
ex VAT
£14.82 inc VAT
SKU: WKC316B
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...
Read full descriptionAccepted payment methods
Description
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 |
Technical specs
- 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
Installation notes
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.
FAQs
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.
