Hcj3 7.2kv 630a Vacuum Interrupter Vi For Vacuum Contactors

HCJ3 7.2KV 630A vacuum interrupter

We are manufacturing, exporting and supplying huge range of HCJ3 7.2KV 630A vacuum interrupter VI for vacuum contactors from Yichang, Hubei, China. The interrupter adoption porcelain and ceramics makes to insulate the outer shell. Contact is WCCu metal alloy material advanced technique of adoption Including bulk small. Breaking the abiliting strong the life span is long maintenance is simple .no explosion dangerous no contaminate and the noise is low . The pack vacuum contactor can operate the ebery kind of electric appliances equipments, and fuse match f-c cabinet
Rated voltage: 7.2KV
Rated current: 630A
Rated making current: 6.3KA
Rated breaking current: 5.04KA
Limiting breaking current: 6.3KA
Rated short-time withstand current: 6.3KA
Rated short-time withstand voltage: 32KV
Rated lighting impulse voltage: 60KV
Circuit resistance at lowest rated contacts force: a 80I IC
Electrical life: 250,000 times
Mechanical life: 500,000 times
Closing force due to bellows and atmosphere: 70A 20 N
Force required to hold contacts open at full stroke: 100A 30 N
Limiting abrasion of contacts: 3 mm
Internal gas pressure: a 1.33A 10-3 Pa
Storage life: 20 years