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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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  • Blue Sea 2315 MiniBus 100 Ampere Common BusBar 4 x 10-32 Stud Terminal with Cover [2315]
    Blue Sea Systems

    Blue Sea 2315 MiniBus 100 Ampere Common BusBar 4 x 10-32 Stud Terminal with Cover [2315]

    $31.10
    $43.83
    $31.10
    MiniBus 100 Ampere Common BusBar 4 x 10-32 Stud Terminal with CoverPN:  2315 Great for limited space applications in electronics cabinets and under dashboards Snap on insulating cover attaches to studs and allows unobstructed wire access Raised bus provides easy access to multiple wires on...
    $31.10
    $43.83
    $31.10
  • Blue Sea 2301 150AMP Common BusBar 10 x #8-32 Screw Terminal [2301]Blue Sea 2301 150AMP Common BusBar 10 x #8-32 Screw Terminal [2301]
    Blue Sea Systems

    Blue Sea 2301 150AMP Common BusBar 10 x #8-32 Screw Terminal [2301]

    $29.69
    $42.41
    $29.69
    2301 150AMP Common BusBar 10 x #8-32 Screw Terminal Features: Stud design provides direct terminal to bus contact for low resistant connection Stainless steel studs and screws allow high torquing for excellent electrical contact Tin-plated copper bus for maximum conductivity and resistance to corrosion UL 94-VO...
    $29.69
    $42.41
    $29.69
  • Blue Sea 2702 DualBus 100AMP Common BusBar 10 x 8-32 Screw Terminal [2702]
    Blue Sea Systems

    Blue Sea 2702 DualBus 100AMP Common BusBar 10 x 8-32 Screw Terminal [2702]

    $36.76
    $53.73
    $36.76
    2702 DualBus 100AMP Common BusBar 10 x 8-32 Screw TerminalFeatures: Combines negative and positive buses on one block Tin-Plated Copper CDA 110 / UNS 11000 UL 94-V0 Rated, Glass Reinforced Thermoplastics #8-32 Screw 10 per bus Maximum Voltage: 300V AC / 48V DC WARNING:...
    $36.76
    $53.73
    $36.76
  • Blue Sea 2305 MiniBus 100 Ampere Common BusBar 4 x 10-32 Stud Terminal [2305]
    Blue Sea Systems

    Blue Sea 2305 MiniBus 100 Ampere Common BusBar 4 x 10-32 Stud Terminal [2305]

    $25.44
    $35.34
    $25.44
    2305 MiniBus 100 Ampere Common BusBar 4 x 10-32 Stud TerminalFeatures:Great for limited space applications in electronics cabinets and under dashboardsWARNING: 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...
    $25.44
    $35.34
    $25.44
  • Victron Busbar to Connect 6 Modular Holders [CIP100400070]
    Victron Energy

    Victron Busbar to Connect 6 Modular Holders [CIP100400070]

    $63.71
    $74.96
    $63.71
    Busbar to Connect 6 Modular HoldersFeatures: Six position high current bus bar (1500 A) With two M10 input connections. Input current up to 2000 A. Recommended to parallel multiple high power Multi or Quattro inverter/chargers Warranty InfoWARNING: This product can expose you to chemicals...
    $63.71
    $74.96
    $63.71
  • Blue Sea 2701 DualBus 100 Ampere Common BusBars 5 x 8-32 Screw Terminal [2701]
    Blue Sea Systems

    Blue Sea 2701 DualBus 100 Ampere Common BusBars 5 x 8-32 Screw Terminal [2701]

    $35.34
    $50.90
    $35.34
    2701 DualBus 100 Ampere Common BusBars 5 x 8-32 Screw TerminalFeatures:Combines negative and positive buses on one blockWARNING: 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...
    $35.34
    $50.90
    $35.34
  • BEP Pro Installer Insulated Stud Single - 8mm [IST-8MM-1S]
    BEP Marine

    BEP Pro Installer Insulated Stud Single - 8mm [IST-8MM-1S]

    $21.20
    $30.26
    $21.20
    Insulated Stud Single 8mmThe 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 cable entry. Saves space...
    $21.20
    $30.26
    $21.20
  • Victron Busbar 150A 4P Cover 4X 1/4" Terminals [VBB115040020]
    Victron Energy

    Victron Busbar 150A 4P Cover 4X 1/4" Terminals [VBB115040020]

    $28.85
    $33.94
    $28.85
    Busbar 150A 4P & Cover 4X 1/4" 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...
    $28.85
    $33.94
    $28.85
  • Blue Sea 2303 150AMP Common BusBar 4 x 1/4" Stud Terminal [2303]
    Blue Sea Systems

    Blue Sea 2303 150AMP Common BusBar 4 x 1/4" Stud Terminal [2303]

    $39.58
    $56.56
    $39.58
    2303 150AMP Common BusBar 4 x 1/4" Stud TerminalFeatures: Stud design provides direct terminal to bus contact for low resistant connection Stainless steel studs allow high torquing for excellent electrical contact Tin-plated copper bus for maximum conductivity and resistance to corrosion UV 94-VO rated...
    $39.58
    $56.56
    $39.58
  • Blue Sea 2126 Maxibus 6 x 516-18 Stud Common [2126]
    Blue Sea Systems

    Blue Sea 2126 Maxibus 6 x 516-18 Stud Common [2126]

    $103.23
    $149.90
    $103.23
    6 x 5⁄16- 18 Stud TerminalPart# 2126 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...
    $103.23
    $149.90
    $103.23
  • Blue Sea 2709 Cover f/DualBus 2701 [2709]
    Blue Sea Systems

    Blue Sea 2709 Cover f/DualBus 2701 [2709]

    $19.79
    $28.27
    $19.79
    2709 Cover For DualBus for 2701Specifications: Length: 4-3/16" Height: 7/8" Width: 2-1/2" Weight: 0.03lb 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. For more...
    $19.79
    $28.27
    $19.79
  • Blue Sea 2312, 150 Ampere Common Busbar 20 x 8-32 Screw Terminal with Cover [2312]
    Blue Sea Systems

    Blue Sea 2312, 150 Ampere Common Busbar 20 x 8-32 Screw Terminal with Cover [2312]

    $55.14
    $79.18
    $55.14
    150 Ampere Common Busbar 20 x 8-32 Screw Terminal with CoverPN:   2312 Stud design provides direct terminal to bus contact for low resistant connection Stainless steel studs and screws allow high torquing for excellent electrical contact Tin-plated copper bus for maximum conductivity and resistance to...
    $55.14
    $79.18
    $55.14
  • Blue Sea 2203 Black Terminal Feed Through Connector [2203]
    Blue Sea Systems

    Blue Sea 2203 Black Terminal Feed Through Connector [2203]

    $35.34
    $50.90
    $35.34
    Terminal Feed Through ConnectorsEliminates chage and provides strain relief when passing high current through hulls, decks and bulkheads.Features: Perfect for passing high current cables through hulls, decks and bulkheads Large cables passed through holes are subject to chafing even when protective grommeting is used....
    $35.34
    $50.90
    $35.34
  • BEP Pro Installer Link Joiner 6-Way [779-LBJ-6]
    BEP Marine

    BEP Pro Installer Link Joiner 6-Way [779-LBJ-6]

    $32.51
    $46.33
    $32.51
    Pro Installer Link Joiner 6-WayThis tin-plated bus bar can be used to link 6 adjacent DC products together.  The rating varies from 350-650 Amps depending on how this busbar is wired, see drawing for details.  Made from tin-plated high-purity copper, this bar is intended...
    $32.51
    $46.33
    $32.51
  • Bluewater 20 Terminal Busbar - 150 Amp [312302-B-020]
    Bluewater

    Bluewater 20 Terminal Busbar - 150 Amp [312302-B-020]

    $29.16
    $0.00
    $29.16
    20 Terminal Busbar - 150 AmpDesigned for larger wiring systems, this 20-terminal busbar handles up to 150 amps. It allows you to centralize multiple connections and simplifies complex circuit layouts in marine or industrial systems.This 20-terminal busbar is ideal for applications where space and...
    $29.16
    $0.00
    $29.16
  • Bluewater 10 Position 150AMP 1/4" Busbar w/Cover [312700-B-022]
    Bluewater

    Bluewater 10 Position 150AMP 1/4" Busbar w/Cover [312700-B-022]

    $45.37
    $0.00
    $45.37
    10 Position 150AMP 1/4" Busbar with CoverThis busbar features dual input studs for flexible routing and higher load balancing, supporting up to 150 amps across 10 positions. It’s built for clean, high-efficiency marine power setups.The Dual Bus configuration allows you to isolate or combine...
    $45.37
    $0.00
    $45.37
  • BEP Pro Installer Z Bus Bar - 10 Way - 200A [777-Z10W-200]
    BEP Marine

    BEP Pro Installer Z Bus Bar - 10 Way - 200A [777-Z10W-200]

    $50.90
    $78.01
    $50.90
    200A Z Bar 10 Way Bus BarThis patent-pending, space saving bus bar range is a completely new concept for marine cable termination. Offering almost unlimited installation flexibility, the high and low level bars can be bussed together with Z-Link or used as separate positive/negative...
    $50.90
    $78.01
    $50.90
  • Blue Sea 2610 Terminal Block 65AMP - 10 Circuit [2610]
    Blue Sea Systems

    Blue Sea 2610 Terminal Block 65AMP - 10 Circuit [2610]

    $39.58
    $56.56
    $39.58
    2610 Terminal Block 65AMP - 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...
    $39.58
    $56.56
    $39.58
  • Blue Sea 2020 PowerBar Dual BusBar - Two 3/8"-16 Studs [2020]
    Blue Sea Systems

    Blue Sea 2020 PowerBar Dual BusBar - Two 3/8"-16 Studs [2020]

    $22.61
    $32.51
    $22.61
    PowerBar Dual BusBar - Two 3/8"-16 StudsProvides compact high-ampere busing with 3/8" terminal studsSpecifications: Maximum Amperage: 200A Maximum Voltage: 48V DC Number of Terminal Studs: 2 Terminal Type: 3/8"-16 Stud Bus Material: Tin-Plated Copper CDA 110/UNS11000 Weight: 0.32lb (0.15 kg) WARNING: This product can...
    $22.61
    $32.51
    $22.61
  • Bluewater 14 Position FCI Busbar 3 Screw 1 Post [2314-B-001]
    Bluewater

    Bluewater 14 Position FCI Busbar 3 Screw 1 Post [2314-B-001]

    $55.00
    $0.00
    $55.00
    14 Position FCI Busbar 3 Screw 1 PostDesigned for use with FCI connectors, this sealed busbar supports modular, secure electrical connections in harsh environments. It’s ideal for marine, heavy equipment, or mobile installations where vibration and water ingress are concerns.The FCI busbar provides excellent corrosion resistance and...
    $55.00
    $0.00
    $55.00