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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Vendor:Bluewater
Bluewater 12 Position Male Sealed Deutsch Connector Busbar - 5/16" Stud [2314-D-056]
- £15.96
£0.00- £15.96
- Unit price
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12 Position Male Sealed Deutsch Connector Busbar - 5/16" StudThis waterproof busbar is designed for Deutsch-style DT connectors and built to resist moisture, corrosion, and vibration. With its rugged housing and sealed construction, it’s ideal for marine, off-road, and industrial power distribution where reliability...- £15.96
£0.00- £15.96
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Vendor:Blue Sea Systems
Blue Sea 2127 Maxibus 4 x 516-18 Stud Common [2127]
- £42.91
£62.49- £42.91
- Unit price
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4 x 5⁄16- 18 Stud TerminalPart# 2127 SpecificationsContinuous Amperage 250 Amperes AC/DCVoltage Rating 300 Volts AC Maximum / 48 Volts DC MaximumBus Material Tin-Plated Copper CDA 110 / UNS 11000Base Material Reinforced PolycarbonateCover Material ABSCE Certified WARNING: This product can expose you to chemicals...- £42.91
£62.49- £42.91
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Vendor:Blue Sea Systems
Blue Sea 2404 Terminal Black 20AMP - 4 Circuit [2404]
- £4.51
£6.02- £4.51
- Unit price
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2404 Terminal Black 20AMP - 4 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...- £4.51
£6.02- £4.51
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Vendor:Bluewater
Bluewater 2 Position Bus/Base - Only 10mm [312311-B-020]
- £7.33
£0.00- £7.33
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2 Position Bus/Base - Only 10mmThis heavy-duty dual stud busbar features two 3/8” studs for high-current connections. It supports large cable lugs and is ideal for linking batteries, power inverters, or distribution panels.The corrosion-resistant construction ensures long-lasting performance in harsh marine or off-road environments. This busbar offers a...- £7.33
£0.00- £7.33
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Vendor:Bluewater
Bluewater 5/16" Power Post - Black [314300-B-516]
- £5.01
£0.00- £5.01
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5/16" Power Post - BlackThis power post features a 5/16” stud for secure, high-current cable connections. It’s ideal for smaller power runs or ground returns where space and reliability are key. The 5/16 power post is made from corrosion-resistant materials, ensuring long-lasting durability in...- £5.01
£0.00- £5.01
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Vendor:Blue Sea Systems
Blue Sea 2128 Maxibus 6 x #10-24(Screws) w/2 x 516"(Studs) [2128]
- £34.63
£50.44- £34.63
- Unit price
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2 x 5⁄16"- 18 Stud Terminal6 x#10-24 Terminal Screws Part# 2128 SpecificationsContinuous Amperage 250 Amperes AC/DCVoltage Rating 300 Volts AC Maximum / 48 Volts DC MaximumBus Material Tin-Plated Copper CDA 110 / UNS 11000Base Material Reinforced PolycarbonateCover Material ABSCE Certified WARNING: This product can...- £34.63
£50.44- £34.63
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Vendor:Bluewater
Bluewater 3/8" Dual Stud Busbar Copper Link [312311-A-024]
- £12.51
£0.00- £12.51
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3/8" Dual Stud Busbar Copper LinkThis Dual Stud Busbar features an integrated copper link that connects both studs for continuous conductivity and efficient current distribution. Engineered for high performance, it minimizes resistance while maintaining durability in demanding electrical systems. Ideal for marine and industrial...- £12.51
£0.00- £12.51
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Vendor:Egis Mobile Electric
Egis MaxiBus - 6 5/16" Studs - 250 AMP [6250-600]
- £24.09
£53.46- £24.09
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MaxiBus - 6 5/16" Studs - 250 AMPThe Egis Mobile Electric 6250-600 is a 250A-rated MaxiBus power distribution block featuring six 5/16" (M8) studs, designed for securing high-current electrical connections. Suitable for harsh environments, this unit is ideal for marine or vehicle applications. It...- £24.09
£53.46- £24.09
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Vendor:Newmar Power
Newmar BB-2/8 Bus Bar [BB-2/8]
- £79.06
£92.62- £79.06
- Unit price
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BB-2/8 Bus BarIdeal as a DC ground tie point or positive bus, this heavy-duty, 500-amp-rated bus bar assembly features 5/16 in. studs on 1 in. centers in 1/4 in. thick copper bar for common connection or distribution of large wire gauges.Features: Accommodate 5/16" ring...- £79.06
£92.62- £79.06
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Vendor:Blue Sea Systems
Blue Sea 2103 PowerPost Plus Cable Connector 3/8" Stud [2103]
- £18.06
£25.59- £18.06
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2103 PowerPost Plus Cable Connector 3/8" Stud Enables connection of multiple smaller wires in spaces where a traditional bus bar may not fit.Features: 150 Ampere bus allows small wire connections at high amperage cable connections Connects high amperage cables securely Stud dimensions: 3/8" x 3/4"...- £18.06
£25.59- £18.06
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Vendor:Blue Sea Systems
Blue Sea 2608 Terminal Block 65AMP - 8 Circuit [2608]
- £18.06
£25.59- £18.06
- Unit price
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2608 Terminal Block 65AMP - 8 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...- £18.06
£25.59- £18.06
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Vendor:Blue Sea Systems
Blue Sea 2408 Terminal Block 20AMP - 8 Circuit [2408]
- £6.02
£8.28- £6.02
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2408 Terminal Block 20AMP - 8 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...- £6.02
£8.28- £6.02
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Vendor:T-Spec
T-Spec 8 Position Battery Terminal - POS/NEG [VBTPN]
- £32.37
£36.14- £32.37
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8 Position Battery Terminal - POS/NEGThe VBTPN is an eight-position battery terminal that can accept up to (4) 4/8/10 AWG set screw outputs and (4) 1/0 to 10 AWG ring terminal outputs. It includes (1) positive and (1) negative bolt-on posts for retaining the...- £32.37
£36.14- £32.37
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Vendor:T-Spec
T-Spec VDB4 4-Position Distribution Block w/Cover [VDB4]
- £27.10
£30.11- £27.10
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VDB4 4-Position Distribution Block with CoverT-Spec designed their VDB4 distribution block to handle the high-current power distribution for four (4) power sources while keeping your wiring connected securely and looking neat. You can also use this hefty little block to combine the ground...- £27.10
£30.11- £27.10
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Vendor:BEP Marine
BEP Pro Installer 5 Stud Bus Bar - 650A [777-BB5S-650]
- £98.63
£154.33- £98.63
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Busbar HD 5 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 bars...- £98.63
£154.33- £98.63
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Vendor:Blue Sea Systems
Blue Sea 2017 Dual PowerPost Cable Connectors - 2 x 3/8" [2017]
- £15.05
£21.83- £15.05
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Dual PowerPost Connectors Designed for connecting high amp conductors Includes one black and one red insulator WARNING: 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 other reproductive harm....- £15.05
£21.83- £15.05
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Vendor:Victron Energy
Victron Busbar 150A 2P w/10 Screws Cover [VBB115021020]
- £15.36
£18.07- £15.36
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Busbar 150A 2P with 10 Screws & CoverBusbars 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...- £15.36
£18.07- £15.36
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Vendor:Bluewater
Bluewater Common Stud Busbar 4 Gang - Black [312303-B-020]
- £13.79
£0.00- £13.79
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Common Stud Busbar 4 Gang - BlackThis 4-gang common stud busbar simplifies grounding or positive distribution across multiple circuits. With a single input stud and four output studs, it’s a versatile choice for compact wiring systems.Ideal for marine, RV, and off-grid applications, this common...- £13.79
£0.00- £13.79
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Vendor:Bluewater
Bluewater RGB Busbar [312404-B-022]
- £20.71
£0.00- £20.71
- Unit price
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RGB BusbarDesigned specifically for RGB lighting systems, this specialized busbar enables easy, organized wiring of multi-color LED circuits. It provides consistent, reliable connectivity for lighting control.The RGB Busbar simplifies installations by grouping terminals in a logical layout, reducing clutter and setup time. Ideal for...- £20.71
£0.00- £20.71
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Vendor:Blue Sea Systems
Blue Sea PowerBar 1000 - 8 5/16" Terminal Studs w/Cover [1992]
- £121.98
£177.70- £121.98
- Unit price
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PowerBar 1000 - 8 5/16" Terminal Studs w/CoverComplex wiring systems require a single point to consolidate large and small conductors. The PowerBar 1000 offers a 1,000 Amp busbar with various size studs and screws to connect conductors and fuse blocks.Features: 1,000 Amp busbar for...- £121.98
£177.70- £121.98
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![Egis MaxiBus - 6 5/16" Studs - 250 AMP [6250-600]](http://www.dbmarinesupplies.com/cdn/shop/files/113322XL_533x.jpg?v=1775599554)
![T-Spec 8 Position Battery Terminal - POS/NEG [VBTPN]](http://www.dbmarinesupplies.com/cdn/shop/files/89484XL_533x.jpg?v=1682783889)
![BEP Pro Installer 5 Stud Bus Bar - 650A [777-BB5S-650]](http://www.dbmarinesupplies.com/cdn/shop/files/58691XL_533x.jpg?v=1682690759)
![Blue Sea PowerBar 1000 - 8 5/16" Terminal Studs w/Cover [1992]](http://www.dbmarinesupplies.com/cdn/shop/files/54615XL_533x.jpg?v=1682679700)