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Arc Chamber

Arc Chamber

terminal

Terminals

stamped parts

Stamping Parts

coils

Coils

wires

Wires

Magnetic Trip Unit

Magnetic Trip Unit

Thermal Trip Unit

Thermal Trip Unit

Operating Mechanism

Operating Mechanism

Contact Assembly

Contact Assembly

Connector Assembly

Connector Assembly

Top-Selling Products

Arc Chute for MCB (Miniature Circuit Breaker) parts

Application: MCB, miniature circuit breaker
Sample charge: Free, customer need to pay for the freight

Stamping parts for Wall switch

Application: Stamping parts for Wall switch
Sample charge: Free, customer need to pay forthe freight

Binding Posts for MCB Miniature Circuit Breaker

Application: Miniature Circuit Breaker
Sample charge: Free, customer need to pay for the freight

Coil for MCB Miniature Circuit Breaker

Application: Coil for MCB Miniature Circuit Breaker

Sample charge: Free, customer need to pay forthe freight

About HAIPART

Wenzhou Zhonghui Electric Co., Ltd. is a new type of professional processing components integrated manufacturing processing enterprises, the company has its own independent intelligent assembly and welding processing equipment R&D center, as well as its own independent parts assembly and spot welding processing workshop. On the basis of ensuring product consistency and production efficiency, we also provide customers with a full range of component processing solutions, including spot welding, assemblying, riveting and a series of parts integration projects...

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Foundated in 2019

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Fully Automatic Installation Equipment

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Company Staff

Strategic Partnership Opportunities in Circuit Breaker Components

MCB Coil: Electromagnetic Drive Component of Miniature Circuit Breaker

As a key functional component of the MCB, its core role is to generate driving force through electromagnetic induction: When abnormal conditions such as overload or short circuit occur in the circuit, the coil can quickly trigger the tripping mechanism of the circuit breaker, interrupt the circuit in a timely manner, and thus safeguard the safety of electrical equipment and circuitry.
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MCB Stamping Assembly: Key Structural Component of Miniature Circuit Breaker

Material & Process: Made of high-ductility metal sheets (e.g., cold-rolled steel sheets) via precision stamping forming, it boasts high dimensional accuracy and excellent structural strength, and can accurately meet the assembly tolerance requirements inside the MCB.
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MCB Internal Components: Core Functional Assembly of Miniature Circuit Breaker

It integrates multiple core components such as electromagnetic drive components, precision stamping structural parts, and transmission connection accessories, serving as the core carrier of the internal functional modules of the MCB.
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Why Choose HAIPART

HAIPART is a diversified company in the low-voltage electrical apparatus field with comprehensive production capabilities.

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We not only independently produce plastic and metal parts but also process them into components through various advanced manufacturing techniques...

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We have professional teams for technology and equipment R&D, quality management, and production management, ensuring high-quality products and excellent service for our customers.

MCB parts ISO9001

MCB parts ISO9001

Customize the Solution Process

centre of excellence

R&D Centre of Excellence

At HAIPART we have an excellent technological and Automation R&D centre with more than 80 senior technicians who use the most advanced state-of-the-art 3D software to design and develop parts and automatic machines.

outstanding quality

Consistently Outstanding Quality

We control every step to guarantee the components’quality. We added the electronic inspection module on the automatic equipment to control the quality.The testings will insure the uniformity of the product and satisfy a efficient automatically assembling.

DIGITAL SHOWROOM

If you want to learn more about our manufacturing capabilities, you can click on the avatar in the scene, or accept my invitation

News and Events

[Product News] Residual Current Circuit Breaker (RCCB): The Unseen Guardian of Electrical Safety
RCCB: Function & Assembly Daily RoleRCCB (Residual Current Circuit Breaker) is a crucial safety device. It detects current leakage, instantly cutting power to prevent electric shocks and fires, protecting homes and workplaces 24/7. Assembly Steps 1. Prep Housing Unbox and place the base on a flat Read More
MCCB vs MCB Magnetic Trip: Adjustable Im Explained
Why Is MCCB Magnetic Trip Current Adjustable While MCB Trip Curves Are Usually Fixed?Meta title: MCCB vs MCB Magnetic Trip: Adjustable Im ExplainedMeta description: Learn why many MCCBs offer adjustable instantaneous magnetic trip settings while MCBs use fixed B, C and D characteristics. Explore sol Read More
[Product News] MCB Magnetic Trip Coil Design: Turns, Wire Diameter & Resistance
MCB Magnetic Trip Coil Design: How Turns, Wire Diameter and Resistance Affect PerformanceIn a miniature circuit breaker (MCB), the magnetic trip coil plays a key role in instantaneous short-circuit protection. Its design influences electromagnetic actuation, electrical resistance and thermal perform Read More

Get Touch With Us

We believe that through our manufacturing strengths and service commitment, we are able to provide our customers with superior products and an unparalleled service experience.

We believe that through our manufacturing strengths and service commitment, we are able to provide our customers with superior products and an unparalleled service experience.

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