{"product_id":"maretron-cbmd12","title":"Mpower Bypass Module","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eMaretron MPower CBMD12 12-Channel Bypass Module — Module Only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA manual override panel that gives you physical switch control over every CLMD12 load circuit if the NMEA 2000 network fails or the CLMD12 itself malfunctions — 12 Carling Curvette rocker switches and individual ATC fuse protection per channel.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eWhy It's Worth It\u003c\/strong\u003e\u003cbr\u003eDigital switching systems are only as reliable as the network and electronics that control them — which is exactly why a bypass module exists. If the CLMD12 loses network communication or fails entirely, the CBMD12 lets you unplug the J1 connector from the CLMD12 and plug it into the CBMD12 instead, giving you direct switch control over every load with no network dependency. The Carling Curvette rocker switches are purpose-built for marine environments (corrosion, temperature, vibration, and shock rated) and produce no arcing during switching — a safety consideration in a bilge or fuel vapor environment. ATC fuse protection per channel uses the same current ratings as the CLMD12 outputs, and the fuse slot markings eliminate the need to cross-reference a chart.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCBMD12 vs. CBMD12-R\u003c\/strong\u003e\u003cbr\u003eThe base CBMD12 is the module only — without the red 6AWG bypass jumper wire (A3720) or fuse pack (A3721). If you need those components, order the CBMD12-R instead, or source the A3720 and A3721 accessories separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eImportant Limitations\u003c\/strong\u003e\u003cbr\u003eThe CBMD12 does not support paralleled outputs or PWM dimming — if your CLMD12 installation uses paralleled circuits or dimmable lighting, those features are unavailable in bypass mode.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eUse\u003c\/strong\u003e\u003cbr\u003eInstall adjacent to or near the CLMD12. To activate bypass: ensure area is free of fumes, set all CBMD12 switches to OFF, connect DC power to the 1\/4\"-20 stud, unplug J1 from the CLMD12, and plug J1 into the CBMD12. Switch labels on the CBMD12 correspond to CLMD12 breaker numbers — not sequential left-to-right — so use the label under the ABS cover to identify which switch controls which load.\u003c\/p\u003e","brand":"Maretron","offers":[{"title":"Default Title","offer_id":45225935012022,"sku":"MAR\/CBMD12","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/6584\/6966\/files\/MARCBMD12_001.jpg?v=1783529424","url":"https:\/\/ampedupmarine.com\/products\/maretron-cbmd12","provider":"Amped Up Marine","version":"1.0","type":"link"}