Moving Contact for VCB

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Why Choose Us

Our R&D: Our R&D team consists of senior technical experts with decades of experience in the design and manufacture of high and low voltage electrical equipment. Their expertise, combined with our advanced facilities, enables us to always lead industry trends and continuously optimize our product portfolio.

Quality control: We are able to accurately and efficiently produce a wide range of high-quality electrical products that comply with GB 1984-2024 and GB/T11022-2020 standards to ensure the highest quality.

Customization requirements: We know that our customers' needs are different, so each product can be designed according to the specific needs of the customer.

Our services: In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

Advantages of Moving Contact for VCB

Flexible operation

Mainly include increasing the contact surface between the contact copper bar and the static contact copper bar, and facilitating the adjustment of the trolley. Its structure is simple and compact, which is conducive to flexible operation.

Good thermal conductivity and conduction efficiency

The design of duckbill contact is to set a mounting hole at the front end of the trolley contact arm, and set two contact copper bars on the upper and lower sides of the mounting hole. A contact fixing pad is also set on the outside of one of the contact copper bars, and a first butterfly compression spring is arranged between the pad and the copper bar.

Duckbill Contact for Vacuum Circuit Breaker

Specification of Moving Contact for VCB

NO.	Name		Unit	Data
1	Rated voltage		KV	12/24/40.5
2	Rated current		A	630/1000/1250/1600/2000
3	Material	Steel frame/tension spring		Non-Magnetic stainless steel
		Contact piece		Pure copper T2
4	Copper bar bite depth		Mm	34±2

Tulip Contact for Vacuum Circuit Breaker

Types of Moving Contact for VCB

Duckbill contact for vacuum circuit breaker: Duckbill contact for vacuum circuit breaker are used for withdrawable type and floor withdrawable type indoor high-voltage vacuum circuit breakers, and are suitable for power equipment with rated voltages of 12kv, 24kv, and 40.5kv.

Tulip contact for vacuum circuit breaker: Tulip contact for vacuum circuit breaker is used for withdrawable type and floor withdrawable type indoor high-voltage vacuum circuit breakers, and is suitable for power equipment with rated voltages of 12kv, 24kv, and 40.5kv.

Features of Moving Contact for VCB

Rated voltage: Applicable to power equipment with rated voltage of 12kv, 24kv and 40.5kv.

Connection method: Stable electrical connection is achieved through parallel upper and lower bite contact design, high conductive material and appropriate contact force, thus ensuring the conduction of current.

Compatible cabinet: Jyn-12, jyn-40.5, gbc and other removable cabinet types. Simple and compact structure, convenient for flexible operation, excellent electrical conductivity and high heat conduction efficiency.

Application of Moving Contact for VCB

VCB contacts are part of the switchgear component, which is required to carry normal as well as short-circuit current. They are an essential component in making and breaking short circuit currents. In medium and high voltage appliances, tulip electrical contacts are mainly used for residual-current devices, relays, contactors, and disconnectors. They can be applied to build such electronic devices with medium and high voltage.

Packing and Shipping of Moving Contact for VCB

Packing	Box
Shipping	Shipped by road, sea, rail

FAQ

Q: What is moving contact in a circuit breaker?

A: Contacts are the parts of the circuit breaker that open and close the electrical circuit. There are typically two types of contacts: Fixed Contacts: These remain stationary within the breaker. Moving Contacts: These move to make or break the circuit.

Q: What occurs when the contacts are moved apart in a circuit breaker?

A: When the current carrying contacts of the circuitbreaker are moved apart, an arc is formed, which insist for a short period after the separation of contacts.

Q: What is a tulip contact for VCB?

A: A tulip contact comprises a plurality of outer contact fingers and inner contact fingers. The outer contact fingers forming a shape of the outer surface of fixed contact in order to make the contact surface of each of these fingers contact with the outer surface of fixed contact.

Q: What is the purpose of the contacts in a circuit breaker?

A: Contacts – Allows the current to flow through the circuit breaker when closed. Arc extinguisher – Extinguishes an arc when the circuit breaker interrupts a fault. Trip unit – Opens the operating mechanism in the event of a prolonged overload or short circuit.

Q: How to operate a VCB breaker?

A: The vacuum circuit breaker operates on the basis that when the circuit breaker contacts are opened within a vacuum, an arc can be created among the contacts due to metal vapour ionisation in the contacts.

Q: How is the contact wear checked on a vacuum circuit breaker?

A: The most reliable way to monitor contact wear is measuring the time current integral of all switching operations during the breaker lifetime. This can be accomplished automatically when using an ABB relay that has circuit breaker condition monitoring.

We're professional moving contact for vcb manufacturers and suppliers in China, specialized in providing high quality products and service. If you're going to buy customized moving contact for vcb, welcome to get more information from our factory.

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