China Circuit Breaker Wholesale Supplier

Circuit Breaker

Futina is a leading circuit breaker wholesale supplier, specializing in providing high-quality products and comprehensive solutions to meet the diverse needs of industries worldwide. Futina circuit breaker for sale is mainly used in AC 50Hz/60Hz, rated working voltage 230V/400V, rated current to 63A and below. It is mainly applied at office building, residence, for lighting, power distribution and overload and short circuit protection of equipment. As a specialized circuit breaker supplier, Futina offers different type of circuit breaker, including MCB Miniature Circuit Breaker RCCB Residual Current Circuit Breaker, who provide the safety environment to all over the world.

Types of Circuit Breaker Wholesale

Benefits of Futina's Circuit Breaker Wholesale

High Breaking Capacity

With a powerful 6KA breaking capacity, Futina circuit breakers instantly interrupt dangerous short-circuit currents, protecting your electrical systems from catastrophic damage.
Mechanical Life

Designed for relentless performance, Futina wholesale circuit breakers endure over 10,000 mechanical operations without failure. Slash maintenance costs and eliminate downtime in high-traffic panels.
Wide Range Working Temperature

Futina circuit breakers operate reliably across a wide temperature range (-5°C to 40°C), ensuring stable protection in server rooms, factories, and commercial buildings.

How does Circuit Breakers Work?

latch Arrangement

It consists of a bimetallic strip and a plunger arrangement inside. Also, there is a latch arrangement made to hold the contacts closed, when it is turned ON.
Heated Up

The bimetallic strip is designed to carry a specific amount of current through it. When the current flowing through it exceeds the limit, the bimetallic strip gets heated up and it bends.
Bend

As it bends, it knocks down the latch holding the contacts. Higher the current faster shall be the operation.
Maximum Limit

Similarly, during short circuits, the current flowing through the miniature circuit breaker shall be several times the maximum limit.
Opens the Contacts

This activates the plunger arrangement instantaneously, which in turn knocks down the latch and opens the contacts. This is how a miniature circuit breaker works.

CUSTOMEIZED

Quality Testing of Futina's Circuit Breaker Wholesale

Breaking Capacity	4KA/6KA	Rated Current	6A~63A
Rated Frequency (Hz)	50/60Hz	Rated Insulation Voltage(Ui)	5oov
Working Temperature	-5°C~40℃	Mechanical Life	10000
Protection Level	IP20	Installation	Din rail

Get in Touch with Futina

Guangdong Futina Electrical Co., Ltd.

If you have any product inquiry, Please feel free to contact us.

Futina UPDATES

Jun 25, 2025

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