{"product_id":"egis-4730-20-short-stop-20a-marine-circuit-breaker","title":"Egis 4730-20 Short Stop 20A Marine Circuit Breaker","description":"\u003cp class=\"nvn-hero\"\u003eThe Egis Mobile Electric 4730-20 is a 20-amp Short Stop circuit breaker built for the real conditions on a boat. Type 3 manual reset, IP66 sealed, and rated 28 volts DC, so it covers both 12 and 24 volt systems. When a circuit faults, it trips and stays tripped until you push it back in. No spare fuses to dig for.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Egis Mobile Electric 4730-20 is a 20-amp Short Stop circuit breaker, and it does one job extremely well. It protects a single DC circuit from overcurrent and short circuits, then it stays tripped until you deal with the fault. This is the Type 3 manual reset design, which is exactly what you want on most boat circuits. When something goes wrong, power doesn't sneak back on by itself. You find the problem, fix it, and push the button back in.\u003c\/p\u003e\n\u003cp\u003eWe like these on boats because they replace the old habit of carrying a coffee can full of spare fuses. A blade fuse blows and you're digging through a drawer in the dark looking for the right amperage. A breaker just trips. Reset it and you're back in business, and if it trips again you know you've still got a fault to chase. For bilge pumps, electronics feeds, washdown pumps, lighting circuits, and accessory runs, a resettable breaker earns its spot.\u003c\/p\u003e\n\u003cp\u003eThe 4730-20 is rated for 28 volts DC, so it covers both 12-volt and 24-volt systems without any second-guessing. That voltage number is the maximum the breaker is designed to safely interrupt, so a standard 12-volt house circuit is well within its range. It's a single-pole unit, meaning it protects one positive feed. If you've got several circuits to protect, you install one breaker per circuit and size each one to its own wire.\u003c\/p\u003e\n\u003cp\u003eSealing is where this breaker really fits marine life. It carries an IP66 protection rating, which means it's fully sealed against dust and rated to shrug off strong water jets from any direction. Out on the water that translates to spray over the bow, rain at the helm, and the occasional washdown, none of which get into the mechanism. It's not a submersion rating, but for a console, a helm panel, or an engine space, IP66 is right where you want to be. The stainless steel hardware backs that up, resisting the corrosion that eats plated steel alive in salt air.\u003c\/p\u003e\n\u003cp\u003eConnections are made through No. 10-32 threaded studs. You crimp a ring terminal onto your wire, slip it over the stud, and lock it down with the stainless nut. Studs give you a cleaner, higher-current connection than a push-on spade, and they don't vibrate loose the way a spade can on a boat that pounds. It's a small detail, but it's the kind of thing that keeps a circuit reliable season after season.\u003c\/p\u003e\n\u003cp\u003eThe operating temperature range runs from -40 to 185 degrees Fahrenheit. That's a wide window. It'll ride out a freezing winter on the hard and it'll sit happily near a hot engine in August. So you're not boxed in on where you can mount it. The yellow housing makes it easy to spot and identify when you're staring at a crowded panel trying to find the right breaker.\u003c\/p\u003e\n\u003cp\u003eOne thing to keep in mind on any breaker install: size the breaker to the wire, not the load. The breaker's job is to protect the wiring from overheating, so a 20-amp breaker should be feeding wire that's rated to carry at least 20 amps continuously in a marine run. If you're unsure, size the wire up and keep the breaker at or below the wire's ampacity. Do that and you've got a circuit that's both safe and easy to live with.\u003c\/p\u003e\n\u003cp\u003eEgis Mobile Electric has been building marine and specialty-vehicle electrical gear for over 25 years, and the Short Stop line is a staple for good reason. It's simple, it's sealed, and it does the job. If you're rigging a new panel or upgrading from fuses, the 4730-20 is an easy call for any 20-amp DC circuit on board.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e20-amp rating protects a single DC branch circuit sized to 20 amps\u003c\/li\u003e\n  \u003cli\u003eType 3 manual reset stays open after a fault until you push it back in\u003c\/li\u003e\n  \u003cli\u003eIP66 protection rating seals against dust and strong water jets from any direction\u003c\/li\u003e\n  \u003cli\u003eRated 28 volts DC, so it covers both 12V and 24V marine systems\u003c\/li\u003e\n  \u003cli\u003eNo. 10-32 threaded stud terminals for a solid ring-terminal connection\u003c\/li\u003e\n  \u003cli\u003eStainless steel hardware resists corrosion in the salt air\u003c\/li\u003e\n  \u003cli\u003eWide -40 to 185 degree Fahrenheit operating range for engine spaces and open helms\u003c\/li\u003e\n  \u003cli\u003eSingle-pole configuration protects one positive feed\u003c\/li\u003e\n  \u003cli\u003eYellow housing for quick identification in a busy panel\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 Egis Mobile Electric 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\u003eWhat does Type 3 manual reset mean?\u003c\/summary\u003e\n    \u003cp\u003eIt means the breaker stays tripped after a fault. It won't auto-reset on its own. Once you've fixed the problem, you push the button back in to restore the circuit. That's the safe behavior for most DC circuits, because you know something faulted and you deal with it before power comes back.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this work on a 12 volt system?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's rated 28 volts DC, which covers standard 12-volt and 24-volt marine systems. The voltage rating is the maximum it's designed to interrupt, so a 12-volt circuit is well within range.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does IP66 actually protect against?\u003c\/summary\u003e\n    \u003cp\u003eIP66 means it's fully sealed against dust and rated to handle powerful water jets from any direction. For a boat, that means riding out spray, rain, and washdowns without water getting into the mechanism. It's not a submersion rating, but it's plenty for a helm, console, or engine space.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I size the breaker to my wire?\u003c\/summary\u003e\n    \u003cp\u003eMatch the breaker to the smallest wire in the circuit, not the load. A 20-amp breaker should protect wire rated for at least 20 amps of continuous current in a marine run. If you're unsure, size the wire up and keep the breaker at or below the wire's ampacity.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat terminals does it use?\u003c\/summary\u003e\n    \u003cp\u003eIt uses No. 10-32 threaded studs. You crimp a ring terminal onto your wire and secure it under the stainless nut. Studs give you a more secure, higher-current connection than a push-on spade.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a marine-grade breaker?\u003c\/summary\u003e\n    \u003cp\u003eYes. Egis Mobile Electric builds the Short Stop line for marine and specialty-vehicle use, with stainless hardware and IP66 sealing for the wet, corrosive conditions on the water.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use it as a switch?\u003c\/summary\u003e\n    \u003cp\u003eYou can trip it by hand to isolate a circuit, but it's a protective device first. For regular on-off duty, use a proper switch. Repeated manual cycling isn't what a breaker is built for.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the operating temperature range?\u003c\/summary\u003e\n    \u003cp\u003e-40 to 185 degrees Fahrenheit. That covers cold-weather storage and hot engine compartments, so you can mount it just about anywhere on the boat.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow many circuits does one breaker protect?\u003c\/summary\u003e\n    \u003cp\u003eOne. It's a single-pole breaker, so it protects a single positive feed. For multiple circuits you'd install one breaker per circuit, each sized to its own wire.\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\u003eEgis Mobile Electric 4730-20 Short Stop 20A Circuit Breaker\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eEgis Mobile Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e4730-20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e850053879890\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eAmperage\u003c\/th\u003e\n\u003ctd\u003e20 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eReset Type\u003c\/th\u003e\n\u003ctd\u003eType 3 Manual Reset\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e28 Volt DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eYellow\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTerminal Type\u003c\/th\u003e\n\u003ctd\u003eNo. 10-32 Stud Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003e-40 to 185 degrees Fahrenheit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHardware\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProtection Rating\u003c\/th\u003e\n\u003ctd\u003eIP66\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\": \"What does Type 3 manual reset mean?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It means the breaker stays tripped after a fault. It won't auto-reset on its own. Once you've fixed the problem, you push the button back in to restore the circuit. That's the safe behavior for most DC circuits, because you know something faulted and you deal with it before power comes back.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will this work on a 12 volt system?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's rated 28 volts DC, which covers standard 12-volt and 24-volt marine systems. The voltage rating is the maximum it's designed to interrupt, so a 12-volt circuit is well within range.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does IP66 actually protect against?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"IP66 means it's fully sealed against dust and rated to handle powerful water jets from any direction. For a boat, that means riding out spray, rain, and washdowns without water getting into the mechanism. It's not a submersion rating, but it's plenty for a helm, console, or engine space.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I size the breaker to my wire?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Match the breaker to the smallest wire in the circuit, not the load. A 20-amp breaker should protect wire rated for at least 20 amps of continuous current in a marine run. If you're unsure, size the wire up and keep the breaker at or below the wire's ampacity.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What terminals does it use?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It uses No. 10-32 threaded studs. You crimp a ring terminal onto your wire and secure it under the stainless nut. Studs give you a more secure, higher-current connection than a push-on spade.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a marine-grade breaker?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Egis Mobile Electric builds the Short Stop line for marine and specialty-vehicle use, with stainless hardware and IP66 sealing for the wet, corrosive conditions on the water.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use it as a switch?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"You can trip it by hand to isolate a circuit, but it's a protective device first. For regular on-off duty, use a proper switch. Repeated manual cycling isn't what a breaker is built for.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the operating temperature range?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"-40 to 185 degrees Fahrenheit. That covers cold-weather storage and hot engine compartments, so you can mount it just about anywhere on the boat.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How many circuits does one breaker protect?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"One. It's a single-pole breaker, so it protects a single positive feed. For multiple circuits you'd install one breaker per circuit, each sized to its own wire.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Egis Mobile Electric","offers":[{"title":"Default Title","offer_id":45097429860445,"sku":"2010907","price":9.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_0931d8b1-0fd6-4e56-818c-45f37235415c.png?v=1790329772","url":"https:\/\/nvnmarine.com\/products\/egis-4730-20-short-stop-20a-marine-circuit-breaker","provider":"NVN Marine","version":"1.0","type":"link"}