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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 WKC310C 3 Pole 10kA MCB is a 10A C Curve breaker designed to protect three-phase circuits from short-circuit and overload faults. Rated at...
The WKC310B 3 Pole 10kA MCB is a 10A B Curve breaker designed to protect three-phase circuits against overloads and short-circuit 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.
