The VEC vacuum contactor-fuse combination unit is a latest-generation product, covering voltage ratings of 7.2 kV and 12 kV.It features high mechanical and electrical endurance, excellent maintenance-free performance, and is suitable for various types of loads and frequent operating conditions.It is widely used in power plants, power grids, petrochemical, metallurgical and other industrial projects.
1. Vacuum Contactor
Rated Voltage: 7.2 kV / 12 kV
Rated Current: 400 A
Standard Lightning Impulse Withstand Voltage: 60 kV (for 7.2 kV) / 75 kV (for 12 kV)
Rated Power Frequency Withstand Voltage: 32 kV (for 7.2 kV) / 42 kV (for 12 kV)
Rated Breaking Current: 4 kA
Rated Making Current: 4 kA
Rated Short-Time Withstand Current (4s): 4 kA
Rated Frequency: 50 Hz
Operating Frequency: 300,000 operations (mechanical latching), 1,000,000 operations (electrical latching)
Operating Voltage: DC110V, DC220V, AC110V, AC220V

2. Contactor-Fuse Combination Unit
Rated Voltage: 7.2 kV / 12 kV
Rated Current: 315 A (for 7.2 kV) / 160 A (for 12 kV)
Standard Lightning Impulse Withstand Voltage: 60 kV (for 7.2 kV) / 75 kV (for 12 kV)
Rated Power Frequency Withstand Voltage: 32 kV (for 7.2 kV) / 42 kV (for 12 kV)
Maximum Short-Circuit Breaking Current: 50 kA
Maximum Short-Circuit Making Current (Peak): 130 kA
Rated Frequency: 50 Hz
Operating Frequency: 300,000 operations (mechanical latching), 1,000,000 operations (electrical latching)
Operating Voltage: DC110V, DC220V, AC110V, AC220V