FuseBox MT06B321 32A Type B MCB

The FuseBox MT06B321 is a 32A Type B single-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in consumer units and distribution boards. When abnormal current levels occur, the breaker automatically disconnects the circuit to help protect wiring, electrical equipment, and installations.

This MCB features a Type B tripping curve, making it suitable for residential and light commercial circuits where moderate inrush currents are present, such as socket outlets and general electrical loads. With a 6 kA short-circuit breaking capacity, it provides dependable protection for modern electrical installations.

Its compact single-module design allows easy installation in FuseBox consumer units and other compatible DIN-rail distribution boards. The built-in thermal-magnetic trip mechanism ensures reliable protection against both overload and short-circuit conditions.

Key Features

• 32A 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 mounted for consumer units and distribution boards

• Compact 1-module design for space-saving installation

• Suitable for FuseBox consumer units and compatible systems

Specifications

• Product Code: MT06B321

• Current Rating: 32A

• Number of Poles: 1 (Single Pole)

• Breaking Capacity: 6 kA

• Rated Voltage: 230 V

• Frequency: 50/60 Hz

• 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