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NMEA 2000 Marine Surge Protector
NMEA 2000 Marine Surge Protector
SPN2K-12BA NMEA 2000 Surge Protector for Marine Electronics | Backbone Power & Data Protection - Image 3
NMEA 2000 Marine Surge Protector
NMEA 2000 Marine Surge Protector
SPN2K-12BA NMEA 2000 Surge Protector for Marine Electronics | Backbone Power & Data Protection - Image 6
NMEA 2000 Marine Surge Protector
NMEA 2000 Surge Protector

SPN2K-12BA NMEA 2000 Surge Protector for Marine Electronics | Backbone Power & Data Protection

$299.00

SPN2K-12BA is a 12VDC NMEA 2000 surge protector designed to help protect marine electronics and backbone cabling from lightning-related surges, voltage spikes, and onboard electrical transients. It provides protection for both power and data bus lines, installs inline in the NMEA 2000 backbone or drop cable, and is ideal for autopilots, chart plotters, VHF radios, displays, and other sensitive boat electronics.

SKU: SPN2K-12BA Category: Tags: , Brand:

SPN2K-12BA is a marine NMEA 2000 surge protector built to help protect 12VDC backbone networks and connected electronics from damaging surges, induced voltage, and electrical spikes. Designed for both power and data line protection, this inline backbone surge protector helps reduce the risk of damage to critical marine equipment such as autopilots, chart plotters, VHF radios, displays, sensors, and other NMEA 2000 devices.

This NMEA 2000 backbone surge protector installs directly into the network backbone as a pass-through device using male and female connectors. It can also be installed on a drop cable for additional point-of-use protection. Your current page states it is recommended for backbone runs every 20 feet, which is a strong use-case detail worth keeping because it supports both installation clarity and search relevance.

Key features of the SPN2K-12BA include:

  • Protection for both NMEA 2000 power and data bus lines

  • 12VDC operation with up to 5A continuous current

  • 7kA surge current rating

  • Fast response time as low as 3 nanoseconds

  • Multi-stage surge protection design

  • Marine-grade weatherproof ABS enclosure

  • Simple plug-and-play inline installation

  • Suitable for backbone or optional drop cable installation

Additional information

Weight 10 oz
Dimensions 4.25 × 3.85 × 1.35 in
Application

Marine
Connection Type

NMEA 2000
Continuous Current Rating

5
Environmental Rating

Indoor, Marine
Surge Current Rating (A)

7kA
Voltage (Vdc)

12
Type of Electrical Current

DC
Does NEMA 2000 really need a surge protector?
NEMA 2000 is vulnerable to power surges, particularly from lightning and corroded connections.
My NEMA 2000 power cable has a 3 amp fuse, but your product says it is 5 amps. Will it work for me?
Yes, even though our product is rated for more current your 3A fuse will still work ok
I have a Regal 33 Express will this work for me?
Yes, but your NEMA 2000 Backbone is longer than 20 feet so we recommend using two of these devices if possible.
Will this work on a Sailboat?
yes, any vessel that has a NEMA 2000 network system can benefit from using this device.
Where do I install this?
The device is designed to be installed in the Backbone of the network cable similar to how a T-Conenctor is installed. This device may also be used on the drop cable, this would require a drop cable between the T-Connector and the SPD and then another drop cable between the SPD and the electronic device you wish to protect.
What does the SPN2K-12BA protect?
The SPN2K-12BA helps protect NMEA 2000 backbone networks and connected marine electronics from surges, voltage spikes, and lightning-related electrical events. It is suitable for devices such as autopilots, chart plotters, VHF radios, displays, and sensors.
Does this protect both power and data lines?
Yes. The SPN2K-12BA is described on your current page as providing protection for both the power and data bus lines of an NMEA 2000 network.
Where is the SPN2K-12BA installed?
It installs inline in the NMEA 2000 backbone as a pass-through device and can also be used on a drop cable for additional equipment protection.
What voltage and current is it designed for?
12VDC systems with a 5A continuous current rating.
Why would a boat need an NMEA 2000 surge protector?
Marine electronics can be exposed to electrical surges from nearby lightning, onboard electrical disturbances, shore power issues, and induced voltage events. Sensitive equipment such as radios, displays, and navigation systems can be damaged by those spikes.