Vacuum Circuit Breakers and Vacuum Contactors
Vacuum circuit breakers and vacuum contactors are similar in concept to air circuit breakers and contactors, but their arc-extinguishing units are enclosed in a vacuum environment. This design improves environmental adaptability and provides superior insulation and arc-extinguishing performance, leading to widespread adoption.
Vacuum Circuit Breakers
Vacuum circuit breakers (VCB) is a protective device designed to automatically or manually disconnect a circuit under fault conditions.
- Functions:
- Automatically opens to protect the circuit during faults (e.g., short circuits, overloads).
- Manually operated to interrupt load currents as needed.
- Features:
- Provides robust protection for short circuits, overloads, and other circuit issues.
- Used in high-voltage applications, particularly in circuits exceeding 110kV, often in combination with SF6 insulation.
- Models include VS1-12, 12kV VS1, 24kV VJG-24, and ZW32.
Vacuum Contactor
A vacuum contactor is designed for repeated operations and can interrupt load currents but does not provide short-circuit protection.
- Functions:
- Withstands frequent mechanical operations due to its strong mechanical life.
- Performs separation and holding actions upon receiving control signals.
- Features:
- Equipped with normally open and normally closed contacts.
- Lacks short-circuit current protection, distinguishing it from circuit breakers.
Professional Vacuum Circuit Breakers supplier and manufacturer.
- Zhejiang GONGSHUN Electrical Co.,Ltd (electric-cn.com), Our company was founded in the late 1990s, specializing in the production of inflatable cabinets, SF6 inflatable cabinets, and various high and low voltage complete sets of electrical equipment. It has multiple subsidiaries under its jurisdiction, including high-voltage load switch branch, high-voltage circuit breaker branch, high-voltage fuse branch, and technology development branch.Our technical expertise, comprehensive product portfolio and long-term rich experience are helping many customers in need to solve their power problems. We’re happy to help at any time. Whether you need application product advice or technical assistance, our global service team is committed to providing you with the right support. For more technical information about medium voltage earthing switch, feel free to contact us, send an email to gongshun@electric-cn.com
- Our company specializes in producing 12KV-40.5KV series high-voltage electrical products: FZN58, FLN48, FLN36, FZRN25, FZN21, FN18, ZFN16, FN12, FN8, FN7, FN5, XRNT, XRNP, VS1, ZN28, ZW8, ZW32, JN15, GN19, GN22, GN24, GN30, CLXGN15-12, HXGN □ -12, DXG-12 (L), DFW □ -12 high-voltage cable branch box, CLXGN □ -12 (SF6) series inflatable cabinet 12KV and 35KV cable accessories, etc; CLVXP-12 indoor AC high voltage fixed switchgear, CL-SIS-12 compact solid insulated ring main unit, professional assembly Schneider SC6 (SF6) series load switchgear, ABB produced SFG (SF6) series load switchgear and other series products; Distribution and agency of high-voltage load switches and inflatable cabinets produced by Schneider Electric and ABB; Siemens produces the 3AJ1 series of indoor medium voltage vacuum circuit breakers and other related products. The company has a complete range of products and has been operating safely on domestic and international power grids for a long time, receiving unanimous praise from both new and old users. Among them, multiple products such as FZRN25, FN12, FLN36-12, XRNT-12 have been exported to various countries and regions in East Asia, South Asia, Southeast Asia, Africa, and the United States.