{"product_id":"sierra-cb41200-5a-12v-manual-reset-circuit-breaker","title":"Sierra CB41200 5A 12V Manual Reset Circuit Breaker","description":"\u003cp class=\"nvn-hero\"\u003eThe Sierra CB41200 is a 5 amp push-button circuit breaker for 12 volt DC circuits. When a load pulls too much current, it trips and stays off until you push the button back in, so you always know something happened. It's a simple, resettable way to protect a small accessory circuit on your boat.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eA circuit breaker is cheap insurance for the wiring behind your dash, and the Sierra CB41200 handles that job for small 12 volt DC circuits. It's rated at 5 amps, which puts it right in the range of the low-draw gear most boats carry. Think nav and anchor lights, a VHF radio, gauge and instrument circuits, a small electronics feed, or an accessory outlet. If the circuit ever pulls more current than it should, the breaker trips and cuts power before the wire has a chance to overheat.\u003c\/p\u003e\n\u003cp\u003eWhat makes this one easy to live with is the push-button manual reset. When it trips, it doesn't quietly reset itself a second later like an auto-reset breaker would. It stays off. The button pops, power stays cut, and you know right then that something on that circuit needs a look. Once you've found the problem and fixed it, you just push the button back in and you're running again. No tools, no fuse to dig out of a holder, and no spare to go hunting for in a tackle bay.\u003c\/p\u003e\n\u003cp\u003eThat's the real advantage of a resettable breaker over a one-shot fuse. A blown fuse means you're rummaging for the right amp rating, hoping you've got one aboard. A breaker you reset with your thumb. For a circuit you might need in a hurry, like a bilge pump feed or a nav light on a night run, that matters.\u003c\/p\u003e\n\u003cp\u003eThis is a 12 volt DC unit. Sierra uses a white button to mark its DC breakers and a black button for AC, so the white-button CB41200 is meant for the DC side of your boat, not shore power. Wire it in line on the positive side, between your power source and the load you're protecting, and size it to the circuit. Five amps suits the light stuff. For a bigger pump, a windlass, or a stereo amp, you'd step up to a higher rating in the same family.\u003c\/p\u003e\n\u003cp\u003eSizing is worth a minute of thought. The breaker protects the wire, not just the device, so you want the rating to match the smallest wire in the run. Five amps pairs well with the smaller gauges common on accessory circuits. If your gear's fuse recommendation is higher than 5 amps, this isn't the right one for that job, and that's fine. Pick the rating that fits the circuit and the wire it feeds.\u003c\/p\u003e\n\u003cp\u003eSierra has been supplying marine replacement parts for a long time, and the line is built to meet or exceed the original equipment it replaces. This breaker is sold as a single unit, so order the quantity you need for the panel or the circuits you're wiring. Whether you're swapping out a breaker that's gotten weak, sticky, or corroded, or building a new accessory circuit from scratch, this is a straightforward, no-drama way to get protection back in place.\u003c\/p\u003e\n\u003cp\u003eOne last habit worth keeping. If this breaker trips more than once on the same circuit, don't just keep pushing the button. That's the breaker doing its job and telling you there's a short, a pinched wire, or a load that's grown past what the circuit was set up for. Trace it down and fix it before you reset again. Treated that way, a good breaker will look after your wiring for years and give you one less thing to worry about out on the water.\u003c\/p\u003e\n\u003cp\u003eMounting-wise, plan for the breaker somewhere you can actually reach. The whole point of a manual reset is being able to push that button when you need it, so keep it accessible at the panel or in the compartment where the circuit lives, not buried behind a bulkhead. A breaker you can't get to is a breaker you'll curse at two in the morning.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eRated 5 amps at 12 volts DC, sized for low-draw accessory circuits like lights, radios, and instruments\u003c\/li\u003e\n  \u003cli\u003ePush-button manual reset stays tripped until you press it back in, so you always know a circuit faulted\u003c\/li\u003e\n  \u003cli\u003eResettable design means no spare fuses to carry and no fuse holder to dig into\u003c\/li\u003e\n  \u003cli\u003eWhite button marks it as a DC breaker for your boat's 12 volt side\u003c\/li\u003e\n  \u003cli\u003eWires in line on the positive side between the power source and the load\u003c\/li\u003e\n  \u003cli\u003eProtects the wire from overheating, not just the connected device\u003c\/li\u003e\n  \u003cli\u003eSierra part CB41200, built to meet or exceed the original equipment it replaces\u003c\/li\u003e\n  \u003cli\u003eSold as a single breaker so you can order the exact quantity your panel needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Sierra Marine reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs the CB41200 a manual or automatic reset breaker?\u003c\/summary\u003e\n    \u003cp\u003eIt's a manual reset. When it trips, the button pops and power stays off until you push the button back in by hand. That's on purpose, so a fault gets your attention instead of quietly resetting.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat amperage and voltage is it rated for?\u003c\/summary\u003e\n    \u003cp\u003e5 amps at 12 volts DC. It suits small, low-draw circuits rather than heavy loads.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat circuits is a 5 amp breaker good for?\u003c\/summary\u003e\n    \u003cp\u003eLow-draw gear like nav and anchor lights, a VHF radio, gauge and instrument feeds, small electronics, or an accessory outlet. For a big pump, windlass, or amplifier you'd want a higher rating.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use it on my AC shore power circuits?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is a 12 volt DC breaker. Sierra marks its DC breakers with a white button and AC breakers with a black button, and this one is the white-button DC version.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I reset it after it trips?\u003c\/summary\u003e\n    \u003cp\u003eJust push the button back in. No tools needed. Fix whatever caused the trip first, then reset.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow is a breaker different from a fuse?\u003c\/summary\u003e\n    \u003cp\u003eA fuse blows once and has to be replaced. This breaker trips and resets, so you push a button instead of hunting for a spare fuse of the right rating.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I wire it in?\u003c\/summary\u003e\n    \u003cp\u003eInstall it in line on the positive side, between the power source and the load you're protecting. Match the rating to the smallest wire in the run.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does single mean in the description?\u003c\/summary\u003e\n    \u003cp\u003eIt's sold as one breaker. Order the quantity you need for the number of circuits or panel positions you're wiring.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat should I do if it keeps tripping?\u003c\/summary\u003e\n    \u003cp\u003eDon't just keep resetting it. Repeat trips point to a short, a pinched wire, or a load that's too big for the circuit. Trace and fix the cause first.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eSierra CB41200 5 Amp 12 Volt Push-Button Manual Reset Circuit Breaker\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSierra Marine\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eSierra International\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eCB41200\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e808282367121\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eCircuit Breaker\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eAmperage\u003c\/th\u003e\n\u003ctd\u003e5 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12 Volt\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCurrent Type\u003c\/th\u003e\n\u003ctd\u003eDC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eReset Type\u003c\/th\u003e\n\u003ctd\u003ePush Button Manual Reset\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eButton Color\u003c\/th\u003e\n\u003ctd\u003eWhite (DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is the CB41200 a manual or automatic reset breaker?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a manual reset. When it trips, the button pops and power stays off until you push the button back in by hand. That's on purpose, so a fault gets your attention instead of quietly resetting.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What amperage and voltage is it rated for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"5 amps at 12 volts DC. It suits small, low-draw circuits rather than heavy loads.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What circuits is a 5 amp breaker good for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Low-draw gear like nav and anchor lights, a VHF radio, gauge and instrument feeds, small electronics, or an accessory outlet. For a big pump, windlass, or amplifier you'd want a higher rating.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use it on my AC shore power circuits?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This is a 12 volt DC breaker. Sierra marks its DC breakers with a white button and AC breakers with a black button, and this one is the white-button DC version.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I reset it after it trips?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Just push the button back in. No tools needed. Fix whatever caused the trip first, then reset.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How is a breaker different from a fuse?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A fuse blows once and has to be replaced. This breaker trips and resets, so you push a button instead of hunting for a spare fuse of the right rating.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I wire it in?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Install it in line on the positive side, between the power source and the load you're protecting. Match the rating to the smallest wire in the run.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does single mean in the description?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's sold as one breaker. Order the quantity you need for the number of circuits or panel positions you're wiring.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What should I do if it keeps tripping?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Don't just keep resetting it. Repeat trips point to a short, a pinched wire, or a load that's too big for the circuit. Trace and fix the cause first.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Sierra Marine","offers":[{"title":"Default Title","offer_id":45096727838813,"sku":"2010843","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_f2bf4c9e-30d7-404f-8bb0-a410535c9b89.jpg?v=1790313271","url":"https:\/\/nvnmarine.com\/products\/sierra-cb41200-5a-12v-manual-reset-circuit-breaker","provider":"NVN Marine","version":"1.0","type":"link"}