{"product_id":"egis-maxibus-6250-404-250a-busbar-4-stud-4-screw","title":"Egis MaxiBus 6250-404 250A Busbar | 4 Stud + 4 Screw","description":"\u003cp class=\"nvn-hero\"\u003eThe Egis MaxiBus 6250-404 is a 250 amp power distribution busbar for boats that are outgrowing their battery posts. Four 5\/16 inch studs take your heavy feeds, four screw terminals pick up the accessory circuits, and a clear insulated cover keeps it all safe. Tin-plated copper and stainless hardware, built to live in salt air.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eWhen you start adding gear to a boat, the wiring behind the helm gets ugly fast. The Egis Mobile Electric MaxiBus 6250-404 is how you clean that up. It's a flat-strip power distribution busbar rated for 250 amps at up to 80 volts DC, with four 5\/16 inch studs for your heavy cables and four #8 screw terminals for the smaller circuits. One tidy tie point instead of a stack of ring terminals fighting for room on a single battery post.\u003c\/p\u003e\n\u003cp\u003eThe bar is tin-plated copper, so it carries current with very little voltage drop and shrugs off the corrosion that eats bare copper alive in salt air. Egis builds it as part of their FLEX system, which means it's height-matched to their fuse blocks and other components so everything lines up clean on the panel. The four 5\/16 inch studs handle your main feeds. Think house bank positive, a windlass run, an inverter cable. The four #8 screw terminals pick up the lighter loads like electronics, lighting, and accessory switches. That mix is what makes it genuinely useful. You're not forced to jam everything onto one oversized lug. And adding a circuit down the road is easy. You just land one more ring terminal on an open stud or screw and you're done.\u003c\/p\u003e\n\u003cp\u003eIt ships with a clear insulated cover that snaps over the terminals with break-away tabs, so you can open just the section you need to inspect or add a circuit without pulling the whole thing apart. That cover matters more than people give it credit for. It keeps a dropped wrench or a loose tool from arcing across live terminals, and on an ABYC-minded install a covered busbar is just good practice. The hardware is stainless steel with self-locking nuts, so it stays put through engine vibration and a long season of pounding across chop.\u003c\/p\u003e\n\u003cp\u003eA quick word on sizing, because this is where folks get into trouble. That 250 amp number is the bar's continuous capacity, not a dare to push 250 amps through undersized wire. Size each cable to its actual load and keep the biggest feeds on the studs. Around 4\/0 cable is the practical max on a single 5\/16 inch stud. And if you're running near the top of the rating for long stretches, give it some airflow. Continuous full-rated loads in a sealed compartment run hot, and plenty of installers derate a little for their own peace of mind.\u003c\/p\u003e\n\u003cp\u003eFusing is still on you. A busbar distributes power, it doesn't protect anything by itself. Best practice is a properly rated fuse on each output leg, an ANL or Class T style depending on the circuit, sized to protect the wire and not the bar. On a saltwater boat, hit the stainless studs with a touch of anti-seize before you torque them so they don't gall, and a thin film of dielectric grease on every terminal keeps corrosion from creeping in under the cover.\u003c\/p\u003e\n\u003cp\u003eSo where does it go? Anywhere you need to gather or split heavy DC. Battery switch outputs, a main distribution point behind the console, a combining point in the engine bay on a bigger rig. Mount it to a flat, solid surface. It's a rigid flat strip, so a curved bulkhead or a flexy panel can leave gaps under the cover and that's how tools find live metal. Give it a proper backing board and it'll sit flat and stay sealed. At 6.31 inches long by 1.22 inches wide it tucks into a tight space, which is exactly what you want when console room is scarce. Rig it once, do it right, and you'll forget it's back there. Which is the whole point of good wiring.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e250 amp continuous rating at up to 80 volts DC handles heavy house, inverter, and windlass feeds\u003c\/li\u003e\n  \u003cli\u003eFour 5\/16 inch studs for main cables plus four #8 screw terminals for accessory circuits\u003c\/li\u003e\n  \u003cli\u003eTin-plated copper bar for low voltage drop and strong corrosion resistance in salt air\u003c\/li\u003e\n  \u003cli\u003eClear insulated cover with break-away tabs lets you inspect or add a circuit without full disassembly\u003c\/li\u003e\n  \u003cli\u003eStainless steel self-locking hardware stays torqued through engine vibration\u003c\/li\u003e\n  \u003cli\u003e3-way cable entry routes feeds from multiple directions in tight compartments\u003c\/li\u003e\n  \u003cli\u003ePart of the Egis FLEX system, height-matched to Egis fuse blocks and components\u003c\/li\u003e\n  \u003cli\u003eCompact 6.31 inch by 1.22 inch flat-strip footprint fits behind crowded consoles\u003c\/li\u003e\n  \u003cli\u003eRigid flat-strip design mounts cleanly to a solid backing board\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 are the amp and voltage ratings?\u003c\/summary\u003e\n    \u003cp\u003eIt's rated for 250 amps continuous at up to 80 volts DC, which covers just about any 12, 24, or 48 volt DC system on a boat.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the difference between the studs and the screw terminals?\u003c\/summary\u003e\n    \u003cp\u003eThere are four 5\/16 inch studs for your heavy cables, like house bank feeds, a windlass, or an inverter. The four #8 screw terminals are for lighter accessory circuits like electronics and lighting.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it come with a cover?\u003c\/summary\u003e\n    \u003cp\u003eYes. It ships with a clear insulated cover that snaps on with break-away tabs, so you can pop open just the section you need to inspect or add a circuit.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the biggest cable I can land on a stud?\u003c\/summary\u003e\n    \u003cp\u003eAround 4\/0 cable is the practical maximum on a single 5\/16 inch stud. Size each cable to its actual load rather than automatically running the largest wire that fits.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes the busbar protect my circuits, or do I still need fuses?\u003c\/summary\u003e\n    \u003cp\u003eYou still need fuses. A busbar distributes power, it doesn't protect anything on its own. Best practice is a properly rated fuse on each output leg, sized to protect the wire.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it okay for saltwater use?\u003c\/summary\u003e\n    \u003cp\u003eYes. The bar is tin-plated copper and the hardware is stainless steel, both chosen for salt air. We still recommend a touch of anti-seize on the studs and dielectric grease on every terminal to keep corrosion out.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it work with my other Egis parts?\u003c\/summary\u003e\n    \u003cp\u003eYes. The MaxiBus is part of the Egis FLEX system, so it's height-matched to their fuse blocks and other components for a clean, level panel layout.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhere should I mount it?\u003c\/summary\u003e\n    \u003cp\u003eAnywhere you gather or split heavy DC, like battery switch outputs or a main distribution point behind the console. Mount it to a flat, solid surface or a backing board so the rigid strip sits flat and the cover seals fully.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I run a full 250 amps continuously?\u003c\/summary\u003e\n    \u003cp\u003eThat 250 amp figure is the continuous rating, but full-rated loads in a sealed compartment run hot. Give it airflow if you're near the top of the rating for long stretches, and many installers derate a little for margin.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the model number?\u003c\/summary\u003e\n    \u003cp\u003eIt's the Egis Mobile Electric MaxiBus 6250-404, the four 5\/16 inch stud plus four circuit 250 amp version.\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 MaxiBus 6250-404 250A Busbar\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\u003e6250-404\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e850067590422\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eFlat Strip\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNumber of Terminals\u003c\/th\u003e\n\u003ctd\u003e4 Stud Terminal \/ 4 Screw Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eStud Configuration\u003c\/th\u003e\n\u003ctd\u003eFour 5\/16 Inch Studs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eScrew Terminal Configuration\u003c\/th\u003e\n\u003ctd\u003eFour #8 Circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVoltage Rating\u003c\/th\u003e\n\u003ctd\u003e80 Volt DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eAmperage\u003c\/th\u003e\n\u003ctd\u003e250 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e6.31 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e1.22 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTin Plated Copper\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCable Entry\u003c\/th\u003e\n\u003ctd\u003e3 Way\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eInsulated Cover\u003c\/th\u003e\n\u003ctd\u003eIncluded, clear with break-away tabs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHardware\u003c\/th\u003e\n\u003ctd\u003eStainless Steel Self-Locking\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eMaxiBus (FLEX System)\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 are the amp and voltage ratings?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's rated for 250 amps continuous at up to 80 volts DC, which covers just about any 12, 24, or 48 volt DC system on a boat.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the difference between the studs and the screw terminals?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"There are four 5\/16 inch studs for your heavy cables, like house bank feeds, a windlass, or an inverter. The four #8 screw terminals are for lighter accessory circuits like electronics and lighting.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it come with a cover?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It ships with a clear insulated cover that snaps on with break-away tabs, so you can pop open just the section you need to inspect or add a circuit.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the biggest cable I can land on a stud?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Around 4\/0 cable is the practical maximum on a single 5\/16 inch stud. Size each cable to its actual load rather than automatically running the largest wire that fits.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does the busbar protect my circuits, or do I still need fuses?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"You still need fuses. A busbar distributes power, it doesn't protect anything on its own. Best practice is a properly rated fuse on each output leg, sized to protect the wire.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it okay for saltwater use?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. The bar is tin-plated copper and the hardware is stainless steel, both chosen for salt air. We still recommend a touch of anti-seize on the studs and dielectric grease on every terminal to keep corrosion out.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it work with my other Egis parts?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. The MaxiBus is part of the Egis FLEX system, so it's height-matched to their fuse blocks and other components for a clean, level panel layout.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Where should I mount it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Anywhere you gather or split heavy DC, like battery switch outputs or a main distribution point behind the console. Mount it to a flat, solid surface or a backing board so the rigid strip sits flat and the cover seals fully.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I run a full 250 amps continuously?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"That 250 amp figure is the continuous rating, but full-rated loads in a sealed compartment run hot. Give it airflow if you're near the top of the rating for long stretches, and many installers derate a little for margin.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the model number?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's the Egis Mobile Electric MaxiBus 6250-404, the four 5\/16 inch stud plus four circuit 250 amp version.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Egis Mobile Electric","offers":[{"title":"Default Title","offer_id":45074819743837,"sku":"2009560","price":23.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/EME6250404_001.jpg?v=1789826241","url":"https:\/\/nvnmarine.com\/products\/egis-maxibus-6250-404-250a-busbar-4-stud-4-screw","provider":"NVN Marine","version":"1.0","type":"link"}