U.S. Customers: Orders shipped from Canada may be subject to U.S. import duties, taxes, and/or tariffs as assessed by U.S. Customs and your carrier. These charges are not included in our product prices or shipping rates. You are responsible for any duties/tariffs/fees due on delivery or prior to delivery.
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Premium Marine Quality Parts

Maretron

Maretron 12 Circuit Bypass Module NMEA 2K w/Fuse Pack & Jumper Wire

LSN 107978 MPN CBMD12-R MFR Maretron
Special Order
BC, Warehouse

"Special Order" items will take longer to process and ship then "Express" items.
Typically takes no more then 14 days for delivery.

For next day parts. Visit our express parts catalog Here.
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$271.05
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12 Circuit Bypass Module NMEA 2K with 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:

  • 75 Amps maximum current capacity
  • Outputs
  • 12A Max (two outputs)
  • 10A Max (six outputs)
  • 5A Max (four outputs)
  • 12V and 24V DC power systems
  • Carling Technologies Curvette® Rocker Switches
  • Overcurrent protection via ATC standard fuses
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Documentation

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Northern Marine Canada
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Serving customers across Canada & the USA with marine parts and accessories.
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About Us

Northern Marine is a Canadian supplier of premium marine and RV parts and accessories from top industry brands. We focus on quality, accurate listings, and dependable fulfillment so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: get you the right parts, shipped fast, with straightforward service you can count on.