CNF-400A/1.14KV Fast Vacuum Contactor

The bypass switch (fast vacuum contactor) is used for bypass protection of power electronic semiconductor devices. The main contacts of the bypass switch are connected in parallel with the power electronic semiconductor devices. Under normal operation, the main contacts of the bypass switch are open. When a fault occurs in the power electronic semiconductor device, the coil is energized, causing the main contacts of the bypass switch to close rapidly and bypass the faulty semiconductor device, allowing the system to continue operating normally.

Ambient temperature: -5°C to 60°C.

Relative humidity: 5%RH to 95%RH.

Altitude: <2000m.

Usage location: Indoor

The benefits of main contacts:

• The material of the busbar is T2 pure copper.

• The busbar is nickel-plated.

• The flexible connection busbar is durable and oxidation-free.

• The surface of the busbar is smooth, flat, and defect-free.

Main Technical Parameters

Pole Number: Single pole.

Rated Control Voltage: DC24V or DC110V or DC220V.

Control Circuit Mode: Direct electromagnetic drive coil (electrically operated, manual reset), self-holding after closing.

Auxiliary Circuit Contacts: 1NO 1NC (SPDT, contact capacity: DC 220V, 0.1A).