WKC 3 Pole 10kA MCB – 50A B Curve (WKC350B)

Availability: 0 left in stock

SKU: WKC350B

£12.35

The WKC350B 3 Pole 10kA MCB is a 50A B Curve breaker providing reliable short-circuit and overload protection for three-phase circuits. Rated at 10kA breaking capacity and compliant with BS 7671 (18th Edition), it’s a...

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INTERNATIONAL	XS	S	M	L	XL	XXL	XXXL
EUROPE	32	34	36	38	40	42	44
US	0	2	4	6	8	10	12
CHEST FIT (INCHES)	28"	30"	32"	34"	36"	38"	40"
CHEST FIT (CM)	716	76	81	86	91.5	96.5	101.1
WAIST FIR (INCHES)	21"	23"	25"	27"	29"	31"	33"
WAIST FIR (CM)	53.5	58.5	63.5	68.5	74	79	84
HIPS FIR (INCHES)	33"	34"	36"	38"	40"	42"	44"
HIPS FIR (CM)	81.5	86.5	91.5	96.5	101	106.5	111.5
SKORT LENGTHS (SM)	36.5	38	39.5	41	42.5	44	45.5

Description Reviews FAQSs Technical Specs Installation Notes

The WKC350B 3 Pole 10kA MCB is a 50A B Curve breaker providing reliable short-circuit and overload protection for three-phase circuits. Rated at 10kA breaking capacity and compliant with BS 7671 (18th Edition), it’s a trusted solution for industrial boards, EV installations, and solar PV systems. Compact and bi-directional, it fits standard DIN rail consumer units and distribution boards.

Installer Tip: The B Curve is recommended for resistive loads such as lighting and socket outlets. For inductive or high inrush loads, see the C Curve or D Curve versions.

Key Features

50A rated current – suitable for larger three-phase resistive loads
B Curve tripping – fast disconnection for general-purpose circuits
10kA breaking capacity – safe interruption of high fault currents
3 Pole design: full protection across three phases
Bi-directional: allows wiring from top or bottom
Applications: commercial lighting, socket banks, EV & PV installs

Compare 50A 3 Pole Variants

Model	Curve	Rated Current	Breaking Capacity
WKC350B (This Product)	B Curve	50A	10kA
WKC350C	C Curve	50A	10kA
WKC350D	D Curve	50A	10kA