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DC Contactor EVD20

Epoxy Sealed 12VDC 24VDC Contactor Small Current 30A High-power DC Relay for EV Bus Energy
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20A High Voltage DC Contactor | 12V DC 20A Relay Alternative

This 20A high-voltage DC contactor is designed for reliable switching and protection in modern DC power systems. As a robust alternative to a traditional 12V DC 20A relay, it offers higher insulation strength, longer electrical life, and stable performance under high-voltage DC conditions.

Rated at 20 amp current, this 20 amp contactor is suitable for applications where safe and controlled DC switching is critical. The compact design allows easy integration into space-limited systems, while the sealed contact structure ensures reliable operation in harsh environments.

Unlike conventional relays, this 20A contactor is engineered specifically for high-voltage DC circuits, reducing the risk of contact welding and arc damage. The optimized magnetic drive system delivers fast response, low power consumption, and consistent contact force across the full operating range.

Key Features

  • Rated current: 20A

  • Control voltage: 12V DC

  • High-voltage DC switching capability

  • Long mechanical and electrical life

  • Compact structure for easy system integration

  • Reliable arc suppression for DC loads

Typical Applications

  • EV charging systems

  • Battery energy storage systems (BESS)

  • DC power distribution units

  • Solar energy and renewable DC systems

  • Industrial DC control and protection


This 20A high voltage DC contactor provides a safer and more durable solution than standard 12V DC 20A relays, making it ideal for demanding DC power applications requiring stable performance and long service life.



Contact Arrangement

SPST-NO

Auxiliary Contact

-

Voltage Rating

12-200Vdc,  12-750Vdc,  12-1000Vdc,  12-1500Vdc

Current Rating

1-20A

Break C urrent,

Max(only 1 time)

200A 320Vdc

Contact Resistance

≤1mΩ(at 20A)

Insulation Resistance

Initial: 100MΩ  1000Vdc


After test: 50MΩ  1000Vdc

Coil Voltage

12Vdc

24Vdc

Coil Power

≈3.6W

≈3.8W

Mechanical Life

3x105 cycles

Main Contact Mounting

M4 internal thread

Dimensions

51.6×35.6×46.2mm

Weight

≈115g

Operating & Storage Temperature

-40~+85℃

Operating & Storage Humidity

5%~95% RH.

Altitude

≤4000m

Certification

CE, UL, CCC


  • No. 8, Changyu Road, Chang'An, Shijiazhuang, Hebei, 050015 China
  • Call us on:
    +86-13315914545
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