FuseBox 40A D Curve 10kA Triple Pole MCB | MT10D403

Rated at 40A with a D curve characteristic, the FuseBox MT10D403 3P MCB gives 10kA overcurrent protection in FuseBox consumer units and TPN distribution boards.

As a triple pole device it disconnects all three poles together, making it suited to three phase motors, heaters and sub main feeds. The D curve characteristic trips magnetically between 10 and 20 times rated current, intended for very high inrush loads such as large motors, welders and transformers. Final device selection should always follow the circuit design, cable size, installation method and fault level of the installation.

Key features

• 40A rated current
• D Curve tripping characteristic
• 10kA short circuit breaking capacity
• Triple Pole (3P) protection
• 35mm DIN rail mounting
• Fits FuseBox consumer units and TPN distribution boards

• Brand: FuseBox
• Product code: MT10D403
• Product type: Miniature circuit breaker (MCB)
• Rated current: 40A
• Tripping characteristic: D Curve
• Breaking capacity: 10kA
• Poles: 3P
• Width: 3 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.