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NMEA 2000 Power Isolator Adapter

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Product Description

The VFS Marine NMEA 2000 Power Isolator Adapter is used for isolating power between two independent NMEA 2000 networks. So it reduces battery current draw by powering one bus off while the other remains operational, or it can assist with voltage drop issues on long networks. Finally the orange couplers connect to the corresponding VFS Marine backbone cables and tees, creating a simplified, color coded network installation.

This Adapter is compatible with major brands of marine electronics such as Garmin, Lowrance, Simrad, B&G, Navico, and more.


  • The NMEA 2000 Power Isolator Adapter connects between NMEA 2000 tees and/or backbone cables while isolating the power supply within the network.
  • Color coded for easy installation and component identification.
  • Also compatible with all NMEA 2000 micro devices.



  • Part Number: 20370
  • Item Type: Power Isolator Adapter
  • Connect: End devices to the Network
  • Material: ABS
  • Number of Pins: 5 Pin
  • Gold-plated contact Pins
  • Waterproof Grade: IP67
  • Plug Size: M12
  • Insulation Resistance: ≥100 MΩ
  • Adapter Wire Gauge: 22AWG/0.34mm²

Package List:

  • 1 x Power Isolator Adapter Adapter


Compatible with all NMEA 2000 networks, such as Lowrance, Garmin, Simrad, B&G, and Navico


VFS Marine Connectors are compatible with all other NMEA 2000 connectors. You can easily integrate our cables and connectors into an existing NMEA 2000 network.

UL-certified, double-shielded, thick insulation, saltwater-proof, UV- and oil-resistant, cold-resistant down to -40°C, and heat-resistant up to 75°C.

Part Number
Waterproof Grade
Plug Size
5 Pin (Gold-plated Contact)
Insulation Resistance
≥100 MΩ
power connection
Power Isolator

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