Maretron 12 Circuit Bypass Module NMEA 2K w/o Fuse Pack Jumper Wire [CBMD12]
Maretron 12 Circuit Bypass Module NMEA 2K w/o Fuse Pack Jumper Wire [CBMD12]
12 Circuit Bypass Module NMEA 2K without Fuse Pack & Jumper Wire: For manual control of the loads, an optional MPower® 12-Channel Bypass Module (CBMD12) can be installed in conjunction with the 12-Channel DC Load Controller Module (CLMD12). The maximum current capacity for the CBMD12 is 75 amps in 12V DC and 24V DC power systems.
In stock — ships today if ordered by 2 PM ET
About the network cables & module.
12 Circuit Bypass Module NMEA 2K without Fuse Pack & Jumper Wire: For manual control of the loads, an optional MPower® 12-Channel Bypass Module (CBMD12) can be installed in conjunction with the 12-Channel DC Load Controller Module (CLMD12). The maximum current capacity for the CBMD12 is 75 amps in 12V DC and 24V DC power systems. The Bypass Module provides a manual method (ON/OFF switch) to control loads by providing power to each load in case of a CLMD12 malfunction or a NMEA 2000® network failure. The CBMD12 utilizes standard fuses for overcurrent protection and 12 Carling Curvette® Rocker Switches for manual control of each load. With the use of the Curvette rocker switches, there is no arcing that occurs while manually overriding a load. Furthermore, unlike other digital switching products, MPower does not require moving a fuse, which can cause electrical connections to degrade or the possibility of ignition. It’s important to ensure that the current rating of the fuse for each load is appropriate to protect the load and the wiring for that load. Please note that the bypass module does not support paralleled outputs, since each circuit is controlled by a separate switch. Additionally, the bypass module does not support dimming of circuits. Features:: This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.: Quick Guide (pdf)
- 75 Amps maximum current capacity
- Outputs
- 12A Max (two outputs)
- 10A Max (six outputs)
- 5A Max (four outputs)
- 12V and 24V DC power systems
Product specifications
Full specifications are being added. Call the Field Desk at (704) 709-5290 for details on this item.
75 Amps maximum current capacity
Engineered and field-tested with Maretron. Maretron gear, chosen and stocked by the Bucks & Bass Field Desk.
Outputs
Engineered and field-tested with Maretron. Maretron gear, chosen and stocked by the Bucks & Bass Field Desk.
12A Max (two outputs)
Engineered and field-tested with Maretron. Maretron gear, chosen and stocked by the Bucks & Bass Field Desk.
Fit notes
Runs true to size with room for a midweight layer underneath. If you are between sizes and plan to layer heavily, size up. Field Desk staff can confirm fit by phone or chat before you order.
Size chart
| Size | Chest | Waist | Sleeve |
|---|---|---|---|
| S | 35–37 | 29–31 | 32.5 |
| M | 38–40 | 32–34 | 33.5 |
| L | 41–43 | 35–37 | 34.5 |
| XL | 44–46 | 38–40 | 35.5 |
| 2XL | 47–49 | 41–43 | 36.5 |
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“Exactly as described. Quiet, well built and the fit is right. Second season with it and no complaints.”
Mark T.Verified buyer • Whitetail“Bought this on a Field Desk recommendation and it was the right call. Shipping was fast.”
Jenna R.Verified buyer • Weekend trips“Solid gear for the money. Would like one more color option but performance is there.”
Cody B.Verified buyer • BassFree standard shipping
Orders over $75 ship free in 3–5 business days. Orders placed before 2 PM ET ship the same day.
Easy 30-day returns
Unused gear in original packaging can be returned within 30 days for a full refund. We email a prepaid label.
Warranty handled for you
Full Maretron manufacturer warranty. Our Warranty Center manages the claim so you do not have to chase the brand.
Recommended with it.
Add the two most-paired items and save 10%.
Maretron 12 Circuit Bypass Module NMEA 2K w/o Fuse Pack Jumper Wire [CBMD12] + Garmin GMS 10 Network Port Expander [010-00351-00] + Garmin 40' Marine Network Cable - RJ45 [010-10552-00]


