EVM Series
Ceramic Brazing Seal
High Voltage DC Contactors featuring advanced ceramic-to-metal brazing technology. The hermetically sealed chamber is filled with hydrogen gas to effectively extinguish high voltage arcs, ensuring zero oxidation and zero leakage.
Why Ceramic Brazing?
The EVM series uses a specialized ceramic chamber that is brazed (molecularly bonded) to the metal terminals. This creates a far superior seal compared to epoxy, allowing the chamber to be pressurized with Hydrogen gas.
- Hydrogen Arc Extinguishing: Hydrogen gas has high thermal conductivity, cooling the arc rapidly when contacts open.
- Explosion Proof: The ceramic structure withstands high pressure during short-circuit events (up to 2000A).
- Zero Oxidation: Contacts operate in an inert environment, maintaining low contact resistance (< 0.2mΩ) for the life of the relay.
EVM Series Ordering Information
| Part Number | Rated Current | Max Voltage | Coil Voltage | Aux Contact | Datasheet | Action |
|---|---|---|---|---|---|---|
| EVM-40 | 40 A | 1000 V | 12 / 24 VDC | Optional | Quote | |
| EVM-100 | 100 A | 1000 V | 12 / 24 VDC | Optional | Quote | |
| EVM-200 | 200 A | 1000 V | 12 / 24 VDC | Optional | Quote | |
| EVM-300 | 300 A | 1000 V | 12 / 24 VDC | Optional | Quote | |
| EVM-400 | 400 A | 1000 V | 12 / 24 VDC | Optional | Quote |
