1 amp 1 pole Miniature Circuit Breaker

1 pole miniature circuit breaker MCB is a mini electrical switch with 1 amp current. It can safely be used in AC 50Hz, 230/400V with a 6 kA rated short-circuit breaking capacity, providing an electrical circuit from damage caused by overload or short circuits.

SKU: CCHN-MCB-1P01

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Delivery date: 6-25 days

Overview

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

Model		CCHN-NB8-631PC01
Rated Current		1A
Rated Voltage		230/400V
Frequency		50Hz
Number of Poles		1P
Mechanical Life		20000 Times
Electrical Life		10000 Times
Rated Short-Circuit Breaking Capacity		6000A
Operating Short-Circuit Breaking Capacity		6000A
Rated Impulse Withstand Voltage (1.2/50)		6kV
Dielectric Test Voltage		2000V (50Hz, 1 min)
Heat & Humidity Resistance		28 Cycles
Vibration Resistance		No Obvious Vibration and Impact
Terminal Block	Terminal Block Type	Pillar Terminal Block
	Min. Terminal Size Acceptability	1mm²
	Max. Terminal Size Acceptability	25mm²
	Standard Connection Torque	2 N.m
	Max. Tolerable Torque	2.5 N.m
	Wire Insertion Depth	13mm
Reference Temperature		30℃
Operating Temperature		-35℃~+70℃
Storage Temperature		35℃~+85℃
Applicable Altitude		2000m
Tripping Mode		Thermal Magnetic Trip
Electromagnetic Tripping Type		Type C (5In-10In)
Shell Flame Retardant Grade		V0
Wire Entry Method		Both Upper and Lower
Installation Method		TH35-7.5 Standard Rail
Protection Level	Direct Installation	IP20B
	Installed in the Distribution Box	IP40B

Single Pole MCB Breaker Dimension (Unit: mm)

1 amp 1 pole Miniature Circuit Breaker Dimensions

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.