Greegoo Launches Industry-First 400A 2.5kV Ultra-Fast Vacuum Contactor Breaks Performance Barriers

Greegoo proudly announces the successful development and immediate commercial launch of the world’s fastest high-voltage vacuum contactor in its class: the CNF-400A/2.5kV ultra-fast vacuum contactor.

Key breakthrough specifications that dramatically outperform all current competitors:

• Rated current: 400A continuous
• Rated voltage: 2.5kV
• Bounce time: 0ms
• Closing time: ≤ 4ms (competitors typically ≤ 10–15ms)
• Power frequency withstand voltage: 10kV (twice the industry standard of 5kV)

The unprecedented ≤4ms closing time and 10kV dielectric strength make the CNF-400A/2.5kV the ideal bypass switch solution for high-inrush applications such as capacitor bank switching, transformer inrush mitigation, reactor switching, and hybrid transfer switches where conventional contactors are simply too slow and too weak.

When used as a bypass switch behind an SCR or IGBT solid-state switch, our ultra-fast vacuum contactor closes in under 4 milliseconds and takes over the load with virtually zero transition time while withstanding 10kV surges that would destroy ordinary contactors. Customers now get the speed of solid-state devices combined with the long-life, low-loss advantages of vacuum technology.

The new CNF-400A/2.5kV is already in volume production and available for immediate delivery. Multiple Brazilian and Middle Eastern customers who visited Greegoo’s factory in recent weeks have placed firm orders after witnessing live high-speed closing tests and 10kV withstand verification.