1 amp 1 pole Miniature Circuit Breaker

4.6 out of 5 based on 3 reviews | Write a review

$57.49

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: ATO-MCB-1P01

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Overview
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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		ATO-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)

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.

Types of Circuit Breakers

In this video, we'll take a closer look at the meaning behind these abbreviations and explain the types of circuit breakers they represent. By understanding the different types of circuit breakers on the market, you can make an informed decision and choose the right type for your specific requirements, thereby enhancing the protection of your electrical infrastructure.

Isolator vs Circuit Breaker

Although isolators and circuit breakers have similar functions in a circuit, they are two separate entities. This video explains you the difference between the two devices in terms of working, features, operation, affordability, etc. You can choose between them based on your specific requirements.

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Existing reviews of 1 amp 1 pole Miniature Circuit Breaker

Protecting home's circuits

This miniature circuit breaker is so small, yet it does a great job protecting your home's circuits. The rated current of 1 amp is enough to meet our needs, and we no longer have to worry about overloading.

From: Arthur1997 | Date: 18/10/2023

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Fit perfectly, works like it should.

This 1-pole miniature circuit breaker fit perfectly in my 125 amp OQ panel. I used it for an RV hookup, works great and will trip when needed.

From: Yeager | Date: 26/05/2022

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Great miniature circuit breaker!

This miniature circuit breaker works great with my solar panels. Quality is good and it's simple to install. Fast delivery in times when a shortage exists. These are really nice, high quality miniature circuit breakers that deserve 5 stars.

From: Shake | Date: 27/03/2022

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