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3 pole MCBs provide overcurrent and short-circuit protection across all three live phases of a three-phase supply. They are used in commercial boards, industrial panels, machinery circuits and distribution systems where all phases must disconnect together during a fault.
Designed for three-phase loads, these breakers ensure simultaneous isolation of L1, L2 and L3, preventing phase imbalance and equipment damage. They are available in a wide range of current ratings and tripping curves to support motors, pumps, compressors, HVAC systems, heating equipment and plant machinery.
3 Pole MCBs are essential wherever three-phase equipment is used and are a standard requirement in workshops, factories, plant rooms and commercial buildings.
The WKC320C 3 Pole 10kA MCB is a 20A C Curve breaker built to safeguard three-phase circuits against overload and short-circuit faults. With a...
The WKC363C 3 Pole 10kA MCB is a 63A C Curve breaker designed for heavy three-phase circuits that need reliable overload and short-circuit protection....
The WKC340B 3 Pole 10kA MCB is a 40A B Curve breaker providing short-circuit and overload protection for three-phase circuits. Built with a 10kA...
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...
The WKC306C 3 Pole 10kA MCB is a 6A C Curve breaker designed for protecting three-phase circuits against overload and short-circuit faults. Rated at...
The WKC306B 3 Pole 10kA MCB is a compact B Curve breaker rated at 6A, designed to protect three-phase circuits from overload and short-circuit...
The WKC363B 3 Pole 10kA MCB is a 63A B Curve breaker engineered to protect heavy-duty three-phase circuits from short-circuit and overload faults. With...
The WKC350C 3 Pole 10kA MCB is a 50A C Curve miniature circuit breaker designed to protect three-phase circuits from overloads and short-circuits. With...
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...
The WKC340C 3 Pole 10kA MCB is a 40A C Curve breaker built for protecting three-phase circuits with moderate inrush currents. Rated at 10kA...
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...
The WKC316C 3 Pole 10kA MCB is a 16A C Curve breaker designed to protect three-phase circuits from short-circuit and overload faults. With a...
A 3 pole MCB disconnects all three live conductors at the same time when an overcurrent or short-circuit occurs. This protects three-phase motors and equipment from imbalance damage and ensures safe isolation of the entire circuit.
B Curve: Trips at 3–5 × rated current; suitable for light-duty three-phase loads and predictable startup current.
C Curve: Trips at 5–10 × rated current; ideal for motor-driven loads, compressors, pumps and equipment with noticeable inrush.
Three-phase equipment can suffer serious mechanical and electrical damage if only one or two phases disconnect. A 3 pole MCB avoids this by tripping all phases together, ensuring full isolation and preventing phase-loss faults.
All 3 Pole MCBs in this category comply with BS EN 60898 and meet the requirements of the 18th Edition Wiring Regulations. They are suitable for new installations, commercial upgrades and equipment protection in three-phase environments.
3 Pole MCBs give electricians dependable protection for industrial and commercial systems. Their robust construction, predictable tripping characteristics and wide rating options make them ideal for plant equipment, three-phase motors and multi-phase distribution boards.
$132.00 ex VAT
VAT: Product prices exclude VAT. VAT is added at checkout.
