SPN2K-12DA NMEA 2000 Power Cable Surge Protector for 12VDC Marine Electronics
$149.00
SPN2K-12DA is a 12VDC NMEA 2000 power cable surge protector designed to help protect marine electronics from lightning-induced surges and power disturbances on the network power feed. Installs between the 12VDC power cable and the NMEA 2000 T-connector to help prevent damaging surges from entering your boat’s network cabling and connected devices.
SPN2K-12DA — NMEA 2000 Power Cable Surge Protector for 12VDC Marine Networks
Protect your boat’s NMEA 2000 network power feed from damaging surges with the Bad Wolf SPN2K-12DA. This marine surge protector is designed for 12VDC NMEA 2000 systems and installs between the 12VDC power cable and the T-connector of the backbone to help stop surge energy before it can travel into your network cabling and connected electronics.
Modern marine electronics can be vulnerable to surge events caused by nearby lightning activity, electrical switching, induced voltage, and onboard power disturbances. The SPN2K-12DA helps protect important NMEA 2000 devices such as autopilots, chart plotters, VHF radios, displays, sensors, and other connected marine electronics by reducing the risk of surge damage on the power side of the network. This use case aligns with how the product is currently presented on your site.
Built for marine applications, the SPN2K-12DA is a targeted protection solution for installers and boat owners who want to improve the reliability of their NMEA 2000 system. It is especially useful where surge protection is needed at the power entry point of the network to help keep transient energy from coupling into sensitive communication and control equipment.
Key features
Designed for NMEA 2000 12VDC marine networks
Helps protect the network power feed from surge events
Installs between the 12VDC power cable and T-connector
Helps prevent surges from entering network cabling and connected electronics
Supports protection of devices such as autopilots, chart plotters, VHF radios, and other marine electronics
Ideal for boats using sensitive networked navigation, communication, and control equipment
Recommended applications
NMEA 2000 network power connection points
Chart plotter and navigation systems
Autopilot networks
VHF and marine communication systems
Marine electronic control and monitoring networks
Product Details
| Weight | 10 oz |
|---|---|
| Dimensions | 3.5 × 3.6 × 1 in |
| Application | Marine |
| Connection Type | NMEA 2000 |
| Continuous Current Rating | 5 |
| Environmental Rating | Indoor, Outdoor |
| Surge Current Rating (A) | 6kA |
| Voltage (Vdc) | 12 |
| Type of Electrical Current | DC |
Specifications
Review the product details and product description for voltage, surge current rating, connection type, enclosure rating, wiring details, certifications, and other technical information.
For detailed product-specific ratings, refer to the specifications listed on this product page and any available product documentation.
Installation
Installation should be performed by a qualified electrician, licensed contractor, or qualified installer in accordance with the product instructions, applicable electrical codes, and local requirements.
Always disconnect power before installation and verify the product is suitable for the electrical system where it will be installed.
Warranty
Bad Wolf surge protection devices include a 5-year product warranty.
Eligible products may also include connected equipment warranty coverage when properly installed and registered according to the warranty terms.
Please review the full warranty terms for complete details, limitations, registration requirements, and coverage information.
FAQ
What is the SPN2K-12DA mainly used for?
The SPN2K-12DA is used to help protect 12VDC NMEA 2000 networks and similar manufacturer networks that use the same style connectors.
What does “12DA” mean?
The “12DA” version is designed for 12VDC NMEA 2000 power connection applications only. It should not be used on any voltage other than 12VDC.
Where is the SPN2K-12DA installed?
The SPN2K-12DA is installed between the 12VDC power source and the NMEA 2000 backbone. The power cable from the 12VDC power source connects to the input side of the surge protector, and a user-supplied NMEA 2000 drop cable connects between the surge protector and a T-connector on the NMEA 2000 backbone.
Is the SPN2K-12DA for 12VDC systems only?
Yes. The SPN2K-12DA is designed for 12VDC NMEA 2000 network power applications only. Do not use this surge protector on 24VDC systems, AC power, or any other voltage.
What does the 6KA rating mean?
The 6KA rating refers to the surge current capacity of the device. The SPN2K-12DA is designed to help protect compatible 12VDC NMEA 2000 network power circuits from damaging surge events.
What equipment can the SPN2K-12DA help protect?
The SPN2K-12DA helps protect the 12VDC power feeding a NMEA 2000 network, which may include connected chartplotters, MFDs, fish finders, autopilots, NMEA 2000 sensors, engine gateways, GPS antennas, and other compatible networked marine electronics.
Does the SPN2K-12DA protect the NMEA 2000 data lines?
No. The SPN2K-12DA is designed to protect the power conductors at the NMEA 2000 network power connection point. It is not designed to protect the CAN/data conductors directly.
Is the SPN2K-12DA plug and play?
Yes. The SPN2K-12DA is designed as a plug-and-play surge protector for compatible 12VDC NMEA 2000 network power connections. No cutting or splicing is normally required when used with the correct matching cables and connectors.
Do I need a separate NMEA 2000 drop cable?
Yes. A user-supplied NMEA 2000 drop cable is used between the SPN2K-12DA and a T-connector on the NMEA 2000 backbone.
Can the SPN2K-12DA be mounted in any direction?
Yes. The SPN2K-12DA can be mounted in any direction and is bidirectional.
Does the SPN2K-12DA have status lights?
No. The SPN2K-12DA does not have status indicator lights.
Is the SPN2K-12DA waterproof?
The device itself is waterproof, but a NMEA 2000 network should not be exposed to direct moisture. Install the surge protector and network connections in a protected location whenever possible.
Can this be used on manufacturer networks similar to NMEA 2000?
Yes, the SPN2K-12DA may be used on similar manufacturer networks that use the same style connectors and compatible 12VDC network power configuration. Always verify compatibility before installation.
Can the SPN2K-12DA be used on 24VDC networks?
No. The SPN2K-12DA is for 12VDC applications only. Do not use it on 24VDC networks or any voltage other than 12VDC.
Can the SPN2K-12DA be used on AC power?
No. The SPN2K-12DA is for 12VDC NMEA 2000 network power applications only and should never be used on AC electrical circuits.
Who should install this product?
This product should be installed by someone familiar with NMEA 2000 networks, marine electronics, and 12VDC electrical systems. When in doubt, consult a qualified marine electronics installer or technician.
Does this product include a warranty?
Bad Wolf surge protection devices include a 5-year product warranty. Eligible products may also include connected equipment warranty coverage when properly used and registered according to the warranty terms.
