Single pole 1 amp MCB miniature circuit breaker with low current is used in residential, commercial, and industrial applications. This mini circuit breaker has a 6kA rated impulse withstand voltage and can prevent potential hazards like fire or equipment damage.

Single Pole MCB Breaker Information

• Rated Current: 1 amp
• Rated Voltage: 230/400V AC, 50Hz
• Number of poles: 1 pole
• 6 kA rated short-circuit breaking capacity
• Compliant with IEC standard
• C curve trip characteristic
• With overload protection and short circuit protection function

Technical Data

Single Pole MCB Breaker Dimension (Unit: mm)

Details

Tips: Miniature circuit breaker working principle

A miniature circuit breaker (MCB) is a safety switch used in electrical circuits to protect against overcurrent, which could cause damage to the wiring or appliances. Its working principle is based on two main mechanisms: thermal and magnetic.

• Thermal Mechanism: This operates based on the heating effect of current. When the current exceeds the rated value, a bimetallic strip inside the MCB heats up, bends, and eventually trips the breaker. This action prevents the circuit from overheating and causing damage.
• Magnetic Mechanism: For sudden short circuits, a magnetic coil inside the MCB generates a strong magnetic field. This field rapidly pulls a contact to trip the breaker, interrupting the circuit almost instantaneously.

These combined actions ensure that the mini MCB breaker can handle both gradual overloads and instantaneous short circuits, providing reliable protection for electrical systems. After tripping, the breaker can be reset manually once the fault is cleared.