Electrical - Busbars, Connectors & Insulators
Marine busbars, connectors, and insulators are essential components for creating safe, organized, and reliable electrical distribution systems onboard your vessel. Engineered for demanding freshwater and saltwater environments, these marine-grade components help manage power connections while providing secure conductivity, protection, and long-lasting performance. From positive and negative busbars, terminal blocks, power posts, cable connectors, distribution blocks, and insulated connection solutions to mounting hardware and protective covers, these products support efficient power distribution for batteries, marine electronics, lighting, pumps, and other onboard systems. Quality busbars and connectors help reduce wiring clutter, improve electrical organization, and provide dependable connections for critical equipment. Whether you're upgrading your boat's electrical system, completing a new installation, or improving power management, the right components help ensure safe and efficient operation on the water. Featuring premium products from trusted marine manufacturers, our Electrical – Busbars, Connectors & Insulators collection delivers the reliability and performance serious boaters expect. Browse our selection today and let our knowledgeable team help you choose the ideal electrical connection solutions for your vessel.
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- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
- Alphabetically, Z-A
- Price, low to high
- Price, high to low
- Date, old to new
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Vendor:BEP Marine
BEP Pro Installer 8 Stud Bus Bar - 650A [777-BB8S-650]
- $175.99
$298.27- $175.99
- Unit price
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Busbar HD 8 Stud 650APro Installer buss bars are designed for flexibility and scalability. The snap-out side skirts allow for additional cable entry, and radius ends improve cable routing options. it is easy to link other Pro Installer products to the buss bars because...- $175.99
$298.27- $175.99
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Vendor:Blue Sea Systems
Blue Sea 4008 CableCap - Red 0.47 to 0.13 Stud [4008]
- $3.99
$4.99- $3.99
- Unit price
- / per
4008 CableCap - Red 0.47 to 0.13 StudFeatures:Insulate stud type connectors on alternators, starters, windlasses and other high amperage devicesWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or...- $3.99
$4.99- $3.99
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Vendor:Blue Sea Systems
Blue Sea 2410 Terminal Block 20AMP - 10 Circuit [2410]
- $10.99
$14.99- $10.99
- Unit price
- / per
2410 Terminal Block 20AMP - 10 CircuitFeatures: Closed back design completely insulates power from the mounting surface Each screw pair is 1 isolated circuit Jumpers allow creation of common circuits WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known...- $10.99
$14.99- $10.99
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Vendor:Blue Sea Systems
Blue Sea 2001 Power Post High Amperage Cable Connector 1/4" Stud [2001]
- $12.99
$18.99- $12.99
- Unit price
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PowerPost High Amperage Cable Connector 1/4" StudFeatures: Connects high amperage cables securely Glass-Reinforced Nylon 48 Volts DC Maximum Not rated - Amperage flows between terminals stacked on post and is determined by wire and terminals used WARNING: This product can expose you to chemicals...- $12.99
$18.99- $12.99
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Vendor:BEP Marine
BEP Pro Installer 3 Stud Bus Bar - 650A [777-BB3S-650]
- $63.99
$99.99- $63.99
- Unit price
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Bus Bar HD 3 Stud 650A MC5Pro Installer buss bars are designed for flexibility and scalability. The snap-out side skirts allow for additional cable entry, and radius ends improve cable routing options. it is easy to link other Pro Installer products to the buss...- $63.99
$99.99- $63.99
- Unit price
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Vendor:Blue Sea Systems
Blue Sea 2502 Terminal Block 30AMP - 2 Circuit [2502]
- $5.99
$7.99- $5.99
- Unit price
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2502 Terminal Block 30AMP - 2 CircuitFeatures: Closed back design completely insulates power from the mounting surface Each screw pair is 1 isolated circuit Jumpers allow creation of common circuit WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known...- $5.99
$7.99- $5.99
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Vendor:Egis Mobile Electric
Egis 4 Hole Quad Shaped Busbar Connector [8794]
- $5.99
$7.30- $5.99
- Unit price
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4 Hole Quad Shaped Busbar ConnectorLink Together XD Single, Dual, and Triple XD Relays to multiple sealed fuse blocks or link fuse blocks together for compact installation.Tin-Plated Copper to ensure reliable circuit connectivity and anti-corrosive features keep it last long term.Specifications: Continuous Current (Amps):...- $5.99
$7.30- $5.99
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Vendor:BEP Marine
BEP Pro Installer Single Insulated Stud w/Power Tap Plate - 10mm [IST-10MM-1SPT]
- $23.99
$37.36- $23.99
- Unit price
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Single 10mm Insulated Stud with Power Tap PlateThe Pro Installer insulated studs are a smart choice for marine installers. An increased stainless steel stud length allows up to three cable lugs to be connected, saving space, while the snap-out side skirts allow for additional...- $23.99
$37.36- $23.99
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Vendor:Blue Sea Systems
Blue Sea 4003 Cable Cap Dual Entry - Red [4003]
- $8.99
$11.99- $8.99
- Unit price
- / per
Dual Entry PowerPost Cable Insulator, RedPart# 4003 Protects against accidental short circuits Top lid allows for easy access to connection point Cable Size: up to 2/0 AWG Cable Size Metric: up to 70 mm² Cable Entry Size: 0.7" (17.8 mm) Color: RedWARNING: This product...- $8.99
$11.99- $8.99
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Vendor:Blue Sea Systems
Blue Sea 4002 Cable Cap Dual Entry - Black [4002]
- $8.99
$11.99- $8.99
- Unit price
- / per
Dual Entry PowerPost Cable Insulator, BlackPart# 4002 Protects against accidental short circuits Top lid allows for easy access to connection point Cable Size: up to 2/0 AWG Cable Size Metric: up to 70 mm² Cable Entry Size: 0.7" (17.8 mm) Color: BlackWARNING: This product...- $8.99
$11.99- $8.99
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Vendor:Blue Sea Systems
Blue Sea 2406 Terminal Block 20AMP - 6 Circuit [2406]
- $6.99
$9.99- $6.99
- Unit price
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2406 Terminal Block 20AMP - 6 CircuitFeatures: Closed back design completely insulates power from the mounting surface Each screw pair is 1 isolated circuit Jumpers allow creation of common circuits WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known...- $6.99
$9.99- $6.99
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Vendor:Blue Sea Systems
Blue Sea 2606 Terminal Black 65AMP - 6 Circuit [2606]
- $20.99
$29.99- $20.99
- Unit price
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Terminal Block 65AMP - 6 CircuitFeatures: Closed back design completely insulates power from the mounting surface Each screw pair is 1 isolated circuit Jumpers allow creation of common circuits WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to...- $20.99
$29.99- $20.99
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Vendor:BEP Marine
BEP Pro Installer 4 Stud Bus Bar - 500A [777-BB4S-500]
- $87.99
$138.16- $87.99
- Unit price
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500A 4 Stud Buss barPro Installer buss bars are designed for flexibility and scalability. The snap-out side skirts allow for additional cable entry, and radius ends improve cable routing options. it is easy to link other Pro Installer products to the buss bars because...- $87.99
$138.16- $87.99
- Unit price
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Vendor:Victron Energy
Victron Busbar 250A 4P Cover 4X 5/16" Terminals [VBB125040010]
- $62.90
$74.00- $62.90
- Unit price
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Busbar 250A 4P & Cover 4X 5/16" TerminalsBusbars are used for high current distribution and at the same time they provide connections for batteries and/or DC equipment.We offer a number of busbars with different current ratings, and a different number of connection terminals. Each...- $62.90
$74.00- $62.90
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Vendor:Blue Sea Systems
Blue Sea 2713 Minibus Cover [2713]
- $4.99
$5.99- $4.99
- Unit price
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Cover for 2304 and 2305Great for limited space applicationsBase Material: Reinforced PolycarbonateCover Material: Clear PolycarbonateContinuous Amperage: 100 Amperes AC/DCVoltage Rating: 300 Volts AC Maximum / 48 Volts DC MaximumBus Material: Tin-Plated Copper CDA / UNS11000WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate...- $4.99
$5.99- $4.99
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Vendor:Blue Sea Systems
Blue Sea 2356100 - Water Resistant 100A Busbar w/Cover [2356100]
- $34.99
$50.99- $34.99
- Unit price
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2356100 - Water Resistant 100A Busbar with CoverWater-resistant bussing for harsh environments. Built with wing screws for toolless access.Features:Accepts a wide range of wire sizes Includes 3 wire plugs to maintain a water-resistant rating if less than 4 wires are used Nests with other...- $34.99
$50.99- $34.99
- Unit price
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Vendor:BEP Marine
BEP Pro Installer Terminal Block - 6 Way - 30A [TB-118-6P/DSP]
- $11.99
$17.51- $11.99
- Unit price
- / per
BEP Pro Installer Terminal Block - 6 Way - 30AThis terminal block is ideal for isolated connections up to 30A and suitable for connecting tails from AC and DC panels.WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to...- $11.99
$17.51- $11.99
- Unit price
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Vendor:BEP Marine
BEP Pro Installer Single Insulated Distribution Stud - 1/4" - Positive [IS-6MM-1R/DSP]
- $12.99
$18.20- $12.99
- Unit price
- / per
Insulated Distribution Stud, Single 1/4"Insulated Distribution Stud, Single 1/4" - Made with high temperature plastic bases Stud covers push securely over the threaded stud covering to ABYC standards Dual studs ideal for +ve / -ve connections, branch circuits, windlass or inverter installations Covers supplied...- $12.99
$18.20- $12.99
- Unit price
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Vendor:Victron Energy
Victron Busbar to Connect 5 Mega Fuse Holders - Busbar Only Fuse Holders Sold Separately [CIP100400060]
- $38.25
$45.00- $38.25
- Unit price
- / per
Busbar to Connect 5 Mega Fuse Holders Busbar Only Fuse Holders Sold SeparatelyPlease contact your dealer for any returns, repairs or support issues related to this product. Quick Guide (pdf)- $38.25
$45.00- $38.25
- Unit price
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Vendor:Blue Sea Systems
Blue Sea 2716 Cover f/BusBar 2302 [2716]
- $6.99
$8.99- $6.99
- Unit price
- / per
Cover for Busbar The industry standard busbar for positive distribution The industry standard busbar for the collection of negative or AC ground circuits WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause...- $6.99
$8.99- $6.99
- Unit price
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![BEP Pro Installer 8 Stud Bus Bar - 650A [777-BB8S-650]](http://www.dbmarinesupplies.com/cdn/shop/files/58692XL_533x.jpg?v=1682690772)
![BEP Pro Installer 3 Stud Bus Bar - 650A [777-BB3S-650]](http://www.dbmarinesupplies.com/cdn/shop/files/58690XL_533x.jpg?v=1682690745)
![BEP Pro Installer 4 Stud Bus Bar - 500A [777-BB4S-500]](http://www.dbmarinesupplies.com/cdn/shop/files/58689XL_533x.jpg?v=1682690735)
![BEP Pro Installer Single Insulated Distribution Stud - 1/4" - Positive [IS-6MM-1R/DSP]](http://www.dbmarinesupplies.com/cdn/shop/files/58708XL_533x.jpg?v=1682690931)