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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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  • Bluewater Dual Deutsch DTP 4 Position Busbar - 5/16" Studs [2324-D-056]
    Bluewater

    Bluewater Dual Deutsch DTP 4 Position Busbar - 5/16" Studs [2324-D-056]

    $58.73
    $0.00
    $58.73
    Dual Deutsch DTP 4 Position Busbar - 5/16" StudsWith 4 positions for Deutsch DTP connectors, this sealed busbar delivers high-current capacity with protected terminations. It’s built for compact systems that demand durability and reliability.The 4-position sealed busbar offers excellent resistance to moisture, dust, and...
    $58.73
    $0.00
    $58.73
  • BEP Pro Installer Link Joiner 5-Way [779-LBJ-5]
    BEP Marine

    BEP Pro Installer Link Joiner 5-Way [779-LBJ-5]

    $27.04
    $39.90
    $27.04
    Pro Installer Link Joiner 5-WayThis tin-plated bus bar can be used to link 5 adjacent DC products together.  The rating varies from 400-650 Amps, depending on how this busbar is wired. Made from tin-plated high-purity copper, this bar is intended for use with the...
    $27.04
    $39.90
    $27.04
  • Blue Sea 2304 MiniBus 100 Ampere Common BusBar 5 x 8-32 Screw Terminal [2304]Blue Sea 2304 MiniBus 100 Ampere Common BusBar 5 x 8-32 Screw Terminal [2304]
    Blue Sea Systems

    Blue Sea 2304 MiniBus 100 Ampere Common BusBar 5 x 8-32 Screw Terminal [2304]

    $22.77
    $32.73
    $22.77
    2304 MiniBus 100 Ampere Common BusBar 5 x 8-32 Screw 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...
    $22.77
    $32.73
    $22.77
  • Blue Sea 2204 Red Terminal Feed Through Connector [2204]
    Blue Sea Systems

    Blue Sea 2204 Red Terminal Feed Through Connector [2204]

    $35.58
    $51.24
    $35.58
    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....
    $35.58
    $51.24
    $35.58
  • Blue Sea 2708 BusBar Cover f/PowerBar 2104 [2708]
    Blue Sea Systems

    Blue Sea 2708 BusBar Cover f/PowerBar 2104 [2708]

    $34.16
    $48.40
    $34.16
    2708 BusBar Cover for PowerBar 2104Specifications:Dimensions: 8.500" x 3.375" x 2.750"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 information go to P65Warnings.ca.gov....
    $34.16
    $48.40
    $34.16
  • Blue Sea 2202 Red Terminal Feed Through Connectors [2202]
    Blue Sea Systems

    Blue Sea 2202 Red Terminal Feed Through Connectors [2202]

    $31.31
    $45.55
    $31.31
    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....
    $31.31
    $45.55
    $31.31
  • BEP Pro Installer Bus Bar - 12 Way - 2 x 100A [BB-12W-2NC/DSP]
    BEP Marine

    BEP Pro Installer Bus Bar - 12 Way - 2 x 100A [BB-12W-2NC/DSP]

    $61.21
    $96.09
    $61.21
    Multi Purpose Bus Bar, 12 Way/2 x 100A (with covers)BEP bus bars include tin-plated, brass-insulated mounting bases and flame-resistant flexible plastic covers. The covers are color-coded for polarity and feature a unique push-on fit. Bus Type: Double Output screws: 2 x 12 Input studs:...
    $61.21
    $96.09
    $61.21
  • BEP Pro Installer Bus Bar - 12 Way - 100A [BB-12W-2S/DSP]
    BEP Marine

    BEP Pro Installer Bus Bar - 12 Way - 100A [BB-12W-2S/DSP]

    $46.97
    $73.28
    $46.97
    Bus Bar - 12 Way/100A with 2 Input Studs (with covers)BEP bus bars include tin-plated, brass-insulated mounting bases and flame-resistant flexible plastic covers. The covers are color-coded for polarity and feature a unique push-on fit. Bus Type: Single Output screws: 12 Input studs: 2...
    $46.97
    $73.28
    $46.97
  • Newmar BB-5 Bus Bar [BB-5]
    Newmar Power

    Newmar BB-5 Bus Bar [BB-5]

    $166.57
    $196.49
    $166.57
    BB-5 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. center in 1/4 in. thick copper bar for common connection or distribution of large wire gauges.Features: Accommodate 5/16" ring...
    $166.57
    $196.49
    $166.57
  • BEP Pro Installer Bus Bar - 6 Way - 100A [BB-6W-2S/DSP]
    BEP Marine

    BEP Pro Installer Bus Bar - 6 Way - 100A [BB-6W-2S/DSP]

    $42.70
    $65.84
    $42.70
    Bus Bar - 6 Way/100A with 2 Input Studs (with Red and Black)BEP bus bars include tin-plated, brass-insulated mounting bases and flame-resistant flexible plastic covers. The covers are color-coded for polarity and feature a unique push-on fit. Bus Type: Single Output screws: 6 Input...
    $42.70
    $65.84
    $42.70
  • BEP Pro Installer Double Insulated Stud - 10mm [IST-10MM-2S]
    BEP Marine

    BEP Pro Installer Double Insulated Stud - 10mm [IST-10MM-2S]

    $32.73
    $50.85
    $32.73
    10mm Double Instulated StudThe 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...
    $32.73
    $50.85
    $32.73
  • T-Spec 4 Position Battery Terminal - POS/NEG [V-BATT-TML]T-Spec 4 Position Battery Terminal - POS/NEG [V-BATT-TML]
    T-Spec

    T-Spec 4 Position Battery Terminal - POS/NEG [V-BATT-TML]

    $56.94
    $64.06
    $56.94
    4 Position Battery Terminal - POS/NEGThe V-BATT-TML is a four-position battery terminal that can accept up to (2) 1/0 AWG and (2) 4 AWG, down to (4) 10 AWG wires.  It includes all markers and hardware to be used for the positive or negative...
    $56.94
    $64.06
    $56.94
  • Bluewater Dual 12 Position Male Sealed Deutsch Connector Busbar - 5/16" Stud [2314-D-256]
    Bluewater

    Bluewater Dual 12 Position Male Sealed Deutsch Connector Busbar - 5/16" Stud [2314-D-256]

    $78.31
    $0.00
    $78.31
    Dual 12 Position Male Sealed Deutsch Connector Busbar - 5/16" StudThis sealed dual-input busbar features 12 positions for Deutsch DT connectors, offering secure, waterproof connections for complex systems.Ideal for combining protected inputs and outputs in one unit, this dual DT busbar simplifies wiring in...
    $78.31
    $0.00
    $78.31
  • Newmar BB-2 Bus Bar [BB-2]
    Newmar Power

    Newmar BB-2 Bus Bar [BB-2]

    $91.11
    $106.79
    $91.11
    BB-2 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. center in 1/4 in. thick copper bar for common connection or distribution of large wire gauges.Features: Accommodate 5/16" ring...
    $91.11
    $106.79
    $91.11
  • Blue Sea 2722 DualBus Plus 1/4" Stud, 5 x 10-32 Screw Terminal [2722]
    Blue Sea Systems

    Blue Sea 2722 DualBus Plus 1/4" Stud, 5 x 10-32 Screw Terminal [2722]

    $37.01
    $54.09
    $37.01
    2722 DualBus Plus 1/4" Stud, 5 x 10-32 Screw TerminalFeatures: Combines negative and positive buses on one block Clear polycarbonate cover snaps on to meet Coast Guard and ABYC insulation require WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is...
    $37.01
    $54.09
    $37.01
  • Blue Sea 5503 ANL 750 Fuse Block w/ Cover [5503]Blue Sea 5503 ANL 750 Fuse Block w/ Cover [5503]
    Blue Sea Systems

    Blue Sea 5503 ANL 750 Fuse Block w/ Cover [5503]

    $72.60
    $98.23
    $72.60
    5503 Cover included Accepts 5/16" (M8) ring terminals For use on systems up to 32 Volts DC Swing out design allows replacement of the fuse without removing fasteners Stainless steel studs provide resistance to corrosion and high torquing for excellent electrical contact UL 94-V0...
    $72.60
    $98.23
    $72.60
  • Blue Sea 2201 Black Terminal Feed Through Connector [2201]
    Blue Sea Systems

    Blue Sea 2201 Black Terminal Feed Through Connector [2201]

    $31.31
    $45.55
    $31.31
    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....
    $31.31
    $45.55
    $31.31
  • Blue Sea 2107 PowerBar 600AMP Cable Connector - 8 x 3/8" 16 Stud Terminal [2107]
    Blue Sea Systems

    Blue Sea 2107 PowerBar 600AMP Cable Connector - 8 x 3/8" 16 Stud Terminal [2107]

    $213.56
    $310.38
    $213.56
    2107 PowerBar 600AMP Cable Connector - 8 x 3/8" 16 Stud TerminalSpecifications: Maximum Voltage: 300 V AC/48V DC Number of Terminal Studs: 8 Terminal Type: 3/8" - 16 Stud WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to...
    $213.56
    $310.38
    $213.56
  • Blue Sea 4012 CableCap - Red 0.50 Stud [4012]
    Blue Sea Systems

    Blue Sea 4012 CableCap - Red 0.50 Stud [4012]

    $7.10
    $9.95
    $7.10
    4012 CableCap - Red 0.50 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 other reproductive...
    $7.10
    $9.95
    $7.10
  • Blue Sea 2104 PowerBar 600AMP Cable Connector 4 x 3/8 16 Stud Terminal [2104]Blue Sea 2104 PowerBar 600AMP Cable Connector 4 x 3/8 16 Stud Terminal [2104]
    Blue Sea Systems

    Blue Sea 2104 PowerBar 600AMP Cable Connector 4 x 3/8 16 Stud Terminal [2104]

    $153.76
    $224.95
    $153.76
    2104 PowerBar 600AMP Cable Connector 4 x 3/8 16 Stud TerminalSpecifications: Max Voltage: 300 V AC/48 V DC Number of Terminal Studs: 4 Terminal Type: 3/8" - 16 Stud WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to...
    $153.76
    $224.95
    $153.76