24KV Vacuum Interrupter For Load Break Switch

Model: TF413J, TF413V

Sunway Hanguang's 24kV Vacuum Interrupter for Load Break Switches is a core arc-extinguishing unit specifically designed for medium-voltage load break switches. It is compatible with 50/60Hz AC systems, features a vacuum level of ≤1.33×10⁻³Pa, and achieves arc-free switching and zero re-ignition, overcoming the shortcomings of traditional products. As a professional manufacturer with over fifty years of experience in the electrical field, the company leverages high-end equipment and core patents to ensure this product passes numerous authoritative tests. With over 120,000 units installed globally, it has gained recognition from well-known domestic and international companies, becoming a preferred solution in the medium-voltage power distribution field.

Send Inquiry

Product Description

The 24kV Vacuum Interrupter for Load Break Switches is a core arc-extinguishing component custom-designed by Sunway Hanguang, embodying the brand's fifty years of technological expertise. It is compatible with 50/60Hz AC systems, with a strictly controlled vacuum level of ≤1.33×10⁻³Pa, achieving arc-free switching and zero re-ignition, completely solving the problems of SF₆ product pollution and the cumbersome maintenance of air-insulated products.

As a seasoned electrical product supplier, Sunway Hanguang relies on automated production lines and over 20 core patents to ensure that the 24kV Vacuum Interrupter for Load Break Switches meets IEC, GB, and other standards, passing comprehensive international and domestic tests, showcasing the strength of Chinese manufacturing. With over 120,000 units installed globally, serving more than 50 countries and regions, it has gained recognition from companies such as State Grid and Siemens.

Product Parameters

ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS
Model NO.	VITF24/630-16	VITF 24/630-16V
Rated frequency	50/60Hz	50/60Hz
Rated Voltage	24kV,r.m.s	24kV,r.m.s
Rated short-time power-frequency withstand voltage (1 min)	60kV,r.m.s	65kV,r.m.s
Rated lightning impulse withstand voltage	125kV,Peak	125kV,Peak
Rated Current	630A	630A
Maximum Contact Resistance at Minimum Closing Force	≤35Micro ohms	≤35Micro ohms
Rated short-time withstand current	20kA,r.m.s	20kA,r.m.s
Rated duration of short-circuit	4s	4s
Rated peak withstand current	50kA,r.m.s	50kA,r.m.s
Rated short-circuit making Current	50kA,r.m.s	50kA,r.m.s
Rated active load breaking current	630A	630A
Rated closed-loop breaking current	630A	630A
Rated capacity of no-load transformer	1250kVA	1250kVA
Rated cable-charging breaking current	10A	10A
Rated breaking current of single capacitor bank	400A	400A
Rated breaking current of back-to-back capacitor bank	400A	400A
MECHANICAL DATA
Interrupter Weight(Approx.)	1.25kg	2.18kg
Weight of movable parts	0.68kg	0.72kg
Closing force due to bellow and atmosphere	70±30N	70±30N
Force required to hold contacts open at full stroke	145±50N	130±50N
MECHANICAL REQUIREMENTS(REF. VCB)
Clearance between open contacts	12±1mm	12±1mm
Average opening speed(average of first 75% of contact gap)	1.2±0.2m/s	1.2±0.2m/s
Average closing speed(average of last 30% of contact gap)	0.7±0.2m/s	0.6±0.2m/s
Rated added external contact final force	1000±100N	1000±100N
Added external contact force at contact touch point	750±80N	750±80N
Contact bouncing duration at closing operation	≤2ms	≤2ms
Closing and Opening non-simultaneity of three-phase Contacts	≤2ms	≤2ms
Maximum Rebound during opening	≤2ms	≤2ms
LIFE (ESTIMATED)
Storage life	20years	20years
Mechanical endurance	10000Operations	10000Operations
Contacts limit erosion	3mm	3mm
Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-200 and JB 8738-2008.
Rated Characteristics to be given on request

Product Features and Advantages

The 24kV Vacuum Interrupter for Load Break Switches is optimized for high-frequency operation and reliable switching requirements, offering outstanding overall performance. Its core advantages are as follows:

1. Excellent Switching and Protection Performance

Utilizing high-purity Cu-Cr alloy contacts, with a current interruption value of <3A, it suppresses switching overvoltage, and its small current interruption stability far exceeds the industry average, ensuring the safety of downstream equipment.

2. High Sealing Performance and Long Service Life

Equipped with imported stainless steel bellows, the annual leakage rate is <0.5%, and the fatigue life exceeds 8000 cycles, eliminating the need for frequent maintenance and reducing operating and maintenance costs.

3. Superior Environmental Adaptability

The ceramic shell and metal flange are integrally molded, providing excellent insulation and resistance to wide temperature ranges, high altitudes, and complex working conditions, making it suitable for various extreme power distribution scenarios.

4. Rigorous Quality Control and Convenient Maintenance.

Sunway Hanguang's modern factory implements strict quality control, with each product undergoing 10 tests, supporting traceability, and boasting a failure rate of <0.03%; it is compatible with mainstream platforms, allows for tool-free replacement, and offers 7x24 hour service through its global network.

Product Application Scenarios

The 24kV Vacuum Interrupter for Load Break Switches is widely used in urban ring network cabinets, industrial power distribution rooms, data centers, photovoltaic/wind power substations, and other scenarios. It withstands extreme operating conditions, meets the needs of load switching and cable isolation, aligns with carbon neutrality trends, and poses no risk of gas pollution.

Frequently Asked Questions

1. Customization Services

Supports customization of rated current and monitoring modules, provides OEM/ODM services, and is compatible with multiple standards and different brands of load switches.

2. Quality Assurance

Core components are selected from renowned brands, with full-process quality control and traceable electronic records, ensuring controllable quality.

3. Warranty and After-Sales Service

10-year limited warranty, vacuum decay ≤20%, and global service network providing installation, diagnosis, and spare parts supply.

4. Installation Notes

Ensure moisture-proof and shock-proof transportation. Installation should comply with environmental requirements. After installation, it is recommended to complete voltage withstand and mechanical characteristics tests.

24KV Vacuum Interrupter For Load Break Switch