SPN2K-12BA NMEA 2000 Surge Protector for Marine Electronics | Backbone Power & Data Protection
$299.00
The Bad Wolf SPN2K-12BA is a marine NMEA 2000 surge protector designed to help protect both the 12VDC power circuit and data/CAN bus lines in compatible NMEA 2000 networks.
It installs inline using standard male and female NMEA 2000 connectors and helps reduce the risk of damage from voltage spikes, induced surges, lightning-related events, and onboard electrical transients. Ideal for protecting sensitive marine electronics such as chartplotters, autopilots, VHF radios, displays, sensors, and connected network devices.
The Bad Wolf SPN2K-12BA is a marine NMEA 2000 surge protector designed to help protect both the 12VDC power circuit and data/CAN bus lines in a compatible NMEA 2000 backbone.
Modern boats rely on connected electronics such as chartplotters, autopilots, VHF radios, displays, sensors, and engine monitoring equipment. A damaging surge, induced voltage, or electrical spike on the NMEA 2000 network can create costly failures and downtime. The SPN2K-12BA adds surge protection directly into the NMEA 2000 backbone to help reduce the risk of damage to connected marine electronics.
Designed for NMEA 2000 Backbone Protection
The SPN2K-12BA installs inline with the NMEA 2000 backbone using standard male and female NMEA 2000 connectors. It is designed to protect both the network power circuit and the data lines, making it a strong choice for backbone runs where additional protection is desired.
Network Length Recommendation
For the best level of surge protection, longer NMEA 2000 backbone runs may require more than one surge protector. If your NMEA 2000 network backbone is longer than 20 feet, additional SPN2K-12BA surge protectors may be recommended to help provide better protection across the network.
For larger or more complex NMEA 2000 networks, consult a qualified marine installer to determine the best surge protection layout for your boat.
Key Features
- Protects both NMEA 2000 12VDC power and data/CAN bus lines
- Inline pass-through installation with male and female NMEA 2000 connectors
- Designed for compatible 12VDC NMEA 2000 networks
- 5A continuous current rating on the power circuit
- 7kA surge current rating on the power circuit
- Helps protect connected marine electronics from damaging surges and voltage spikes
- Suitable for indoor and outdoor marine applications
- No serviceable parts
Common Applications
- NMEA 2000 backbone surge protection
- Marine electronics networks
- Chartplotters and multifunction displays
- Autopilot systems
- VHF radios and AIS equipment
- Marine sensors and networked accessories
For best results, install according to the product instructions and verify that the NMEA 2000 network is properly powered and terminated.
Product Details
| 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 |
Installation
Professional marine installation is recommended. Installation should be performed by a qualified licensed marine installer in accordance with the product instructions, applicable marine electrical standards, and local requirements.
Always turn off power to the NMEA 2000 network before installation and verify that power has been disabled before working on the circuit or connected equipment.
NMEA 2000 Backbone Installation Notes
- The SPN2K-12BA is designed to help protect both the 12VDC power circuit and the data lines of a compatible NMEA 2000 backbone.
- This model provides surge protection for the NMEA 2000 power and data/CAN bus lines.
- Locate the best mounting position to allow proper connection into the existing NMEA 2000 backbone.
- Mount the surge protector in a dry location and out of direct sunlight for best performance.
- This device is supplied with one male and one female NMEA 2000 connector.
- Both NMEA 2000 connectors must be connected to cables or fittings to help maintain a watertight connection.
- Using installer-supplied NMEA 2000 cables or fittings, connect the male and female connectors to the appropriate backbone connections.
- Make sure all connections are secure and that the installation does not create any safety hazards.
- Restore power after installation and verify that the connected NMEA 2000 equipment operates normally.
Important NMEA 2000 Notes
- The SPN2K-12BA is designed to be powered by the existing 12VDC NMEA 2000 electrical circuit.
- Verify the correct voltage application before installing this device.
- The NMEA 2000 backbone should be properly powered and terminated according to NMEA 2000 network requirements.
- NMEA 2000 devices should connect to the backbone using proper T-connectors.
- Do not connect an NMEA 2000 network to power in more than one location unless a proper power isolator is used between the power connections.
- Do not perform a Hi-Po test on this surge protector. Hi-Po testing may damage the device and void the warranty.
Installer-Supplied Items
The installer or customer must supply any required NMEA 2000 cables, T-connectors, fittings, mounting hardware, tools, or additional materials needed for the installation.
Service and Warranty Note
This product contains no serviceable parts. Tampering with the device may void the warranty. After installation, register the product on the Bad Wolf website to activate the warranty.
Refer to the SPN2K-12BA installation instructions for complete installation details, specifications, and NMEA 2000 network considerations.
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-12BA mainly used for?
The SPN2K-12BA is designed to be installed inline on a 12VDC NMEA 2000 backbone to help protect the network from damaging surge events. It can also be installed inline on a drop cable between the backbone and a connected electronic device for an even higher level of protection at that device.
What type of network is the SPN2K-12BA designed for?
The SPN2K-12BA is designed for 12VDC NMEA 2000 networks and similar manufacturer networks that use compatible NMEA 2000 Micro-C style connectors.
Is the SPN2K-12BA for 12VDC systems only?
Yes. The SPN2K-12BA is designed for 12VDC NMEA 2000 network applications only. Do not use this surge protector on 24VDC systems, AC power, or any other voltage.
What does the 7KA rating mean?
The 7KA rating refers to the surge current capacity of the device. The SPN2K-12BA is designed to help protect compatible 12VDC NMEA 2000 network power and data conductors from damaging surge events.
What connectors does the SPN2K-12BA use?
The SPN2K-12BA uses NMEA 2000 Micro-C style connectors. It has one male connector and one female connector to provide pass-through polarity when installed inline on a compatible NMEA 2000 network.
Where should the SPN2K-12BA be installed?
The SPN2K-12BA is typically installed inline on the main NMEA 2000 backbone cable between T-connectors for connected devices. It can also be installed inline on a drop cable between the backbone and a connected electronic device for additional device-level protection.
How many SPN2K-12BA surge protectors should be used on a NMEA 2000 backbone?
For NMEA 2000 backbone lengths greater than 20 feet, Bad Wolf recommends using multiple SPN2K-12BA surge protectors, with one installed approximately every 20 feet of backbone length for improved network protection.
Can the SPN2K-12BA be used on a drop cable?
Yes. In addition to backbone installation, the SPN2K-12BA can be installed inline on a drop cable between the NMEA 2000 backbone and a connected electronic device. This can provide a higher level of surge protection for sensitive marine electronics.
Does the SPN2K-12BA protect both power and data conductors?
Yes. The SPN2K-12BA is designed to protect both the NMEA 2000 power conductors and the CAN/data conductors.
How is the SPN2K-12BA different from the SPN2K-12DA?
The SPN2K-12DA is installed at the 12VDC power feed and is designed to protect the NMEA 2000 power conductors. The SPN2K-12BA installs directly inline on the backbone or drop cable, protects both the power and data conductors, and has a higher 7KA surge rating.
What equipment can the SPN2K-12BA help protect?
The SPN2K-12BA can help protect NMEA 2000 networked marine electronics such as chartplotters, MFDs, fish finders, autopilots, NMEA 2000 sensors, engine gateways, GPS antennas, VHF/AIS equipment connected to the network, and other compatible networked marine electronics.
Is the SPN2K-12BA plug and play?
Yes. The SPN2K-12BA is designed as a plug-and-play inline surge protector for compatible 12VDC NMEA 2000 networks. No wire cutting or splicing is normally required when used with compatible cables and connectors.
Does installation direction matter?
The SPN2K-12BA can be mounted in any orientation. The device has one male connector and one female connector to provide pass-through polarity when installed inline on the network.
Does the SPN2K-12BA have status lights?
No. The SPN2K-12BA does not have status indicator lights.
Is the SPN2K-12BA 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 the SPN2K-12BA be used on 24VDC networks?
No. The SPN2K-12BA is for 12VDC applications only. Do not use it on 24VDC networks or any voltage other than 12VDC.
Can the SPN2K-12BA be used on AC power?
No. The SPN2K-12BA is for 12VDC NMEA 2000 network 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.
Specifications
SPN2K-12BA Specifications
| Model Number | SPN2K-12BA |
|---|---|
| Product Type | NMEA 2000 power and data surge protector |
| Application | Compatible 12VDC NMEA 2000 marine networks |
| Protected Circuits | 12VDC power circuit and data/CAN bus lines |
| Installation Type | Inline pass-through connection for NMEA 2000 backbone or compatible drop cable installation |
| Operating Voltage | 12VDC power / 3.5VDC CAN bus |
| Maximum Voltage | 16V power / 5V CAN bus |
| Continuous Current Rating | 5A power / 0.2A CAN bus |
| Surge Current Rating | 7kA power / 0.5A CAN bus |
| Connectors | 1 male NMEA 2000 connector / 1 female NMEA 2000 connector |
| Operating & Storage Temperature | -4°F to +158°F (-20°C to +70°C) |
| Serviceability | No serviceable parts |
NMEA 2000 Network Notes
- The NMEA 2000 backbone should be properly powered and terminated at both ends of the network.
- NMEA 2000 devices should connect to the backbone using proper T-connectors.
- Do not connect an NMEA 2000 network to a power source greater than 12VDC.
- Do not power the NMEA 2000 network from more than one location unless a proper power isolator is used between the power connections.
- Do not perform a Hi-Po test on this surge protector. Hi-Po testing may damage the device and void the warranty.
Specifications are subject to change. Refer to the product label and installation instructions for complete product-specific ratings and installation requirements.