FuseBox MT06B251 25A Type B MCB

The FuseBox MT06B251 is a 25A Type B single-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in modern electrical installations. Installed within consumer units or distribution boards, the breaker automatically disconnects the circuit when excessive current is detected, helping protect electrical wiring and connected equipment.

Featuring a Type B tripping curve, this breaker is suitable for domestic and light commercial circuits such as socket outlets, lighting circuits, and other general electrical loads where moderate inrush currents may occur. It also offers a 6 kA short-circuit breaking capacity, ensuring dependable protection for residential and small commercial installations.

The compact single-module design allows the MCB to fit easily into FuseBox consumer units and other compatible DIN-rail distribution boards. Its thermal-magnetic trip mechanism provides both overload and short-circuit protection, ensuring consistent and long-lasting performance.

Key Features

• 25A current rating

• Single-pole miniature circuit breaker (MCB)

• Type B tripping curve (3–5 × rated current)

• 6 kA short-circuit breaking capacity

• Thermal-magnetic trip mechanism for overload and short-circuit protection

• DIN rail mounting for consumer units and distribution boards

• 1-module compact design for space-saving installation

• Suitable for FuseBox consumer units and compatible distribution boards

Specifications

• Product Code: MT06B251

• Current Rating: 25A

• Number of Poles: 1 (Single Pole)

• Breaking Capacity: 6 kA

• Rated Voltage: 230 V

• Frequency: 50/60 Hz

• Tripping Curve: Type B

• Terminal Capacity: up to 16 mm²

• Mounting Type: 35 mm DIN Rail

• Dimensions: approx. 83 × 17.6 × 69.6 mm

• Standards: IEC / EN 60898-1