FuseBox 40A B Curve 10kA Single Pole MCB | MT10B401

Rated at 40A with a B curve characteristic, the FuseBox MT10B401 1P MCB gives 10kA overcurrent protection in FuseBox consumer units and TPN distribution boards.

A 40A B curve device is typically used on cookers, electric showers and EV charger supplies. The B curve characteristic trips magnetically between 3 and 5 times rated current, the usual choice for domestic final circuits with resistive and general loads. Final device selection should always follow the circuit design, cable size, installation method and fault level of the installation.

Key features

• 40A rated current
• B Curve tripping characteristic
• 10kA short circuit breaking capacity
• Single Pole (1P) protection
• 35mm DIN rail mounting
• Fits FuseBox consumer units and TPN distribution boards

• Brand: FuseBox
• Product code: MT10B401
• Product type: Miniature circuit breaker (MCB)
• Rated current: 40A
• Tripping characteristic: B Curve
• Breaking capacity: 10kA
• Poles: 1P
• Width: 1 module
• Mounting: 35mm DIN rail
• Standard: BS EN 60898

Suitable for

Commercial and industrial distribution boards, FuseBox TPN boards and installations with higher prospective fault currents. Typical 40A use: cookers, electric showers and EV charger supplies.