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Electrical - Accessories

Marine electrical accessories are essential components for maintaining, upgrading, and optimizing your vessel's electrical system. Engineered for dependable performance in demanding freshwater and saltwater environments, today's marine electrical accessories help ensure safe power distribution, efficient operation, and reliable connectivity between onboard systems. From battery switches, terminals, connectors, fuses, circuit protection, wiring components, power distribution panels, adapters, and installation hardware to essential replacement parts, these products are designed to support a wide range of marine electrical applications. Whether you're completing a new installation, upgrading your boat's electronics, or maintaining existing equipment, the right electrical accessories help improve system reliability and protect valuable onboard components. Featuring premium products from trusted marine manufacturers, our Electrical Accessories collection delivers the quality, durability, and performance serious boaters expect. Browse our selection today and let our knowledgeable team help you choose the ideal electrical solutions for your vessel's power and control systems.

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  • Attwood PowerGuard PRO Battery Box [9070-7]
    Attwood Marine

    Attwood PowerGuard PRO Battery Box [9070-7]

    $42.87
    $50.02
    $42.87
    PowerGuard PRO Battery BoxExperience the difference between PowerGuard PRO Series Battery Protection Upward-facing vents let gases out while reducing water in-take by 94% - vs. PowerGuard 27 Series Polypropylene composite material is impervious to acid leaks and other external factors Engineered spill channels direct...
    $42.87
    $50.02
    $42.87
  • Sea-Dog Round USB USB-C Power Plug w/Voltmeter [426514-1]
    Sea-Dog

    Sea-Dog Round USB USB-C Power Plug w/Voltmeter [426514-1]

    $37.15
    $53.82
    $37.15
    Round USB & USB-C Power Plug with VoltmeterUSB 3.0 & USB-C Power Plug with Volt Meter charges two devices simultaneously while the LED screen displays voltage status. Can be used on a boat, car, or RV. The total output 6A load is split 3A...
    $37.15
    $53.82
    $37.15
  • Egis A Series Red Toggle Panel Mount Circuit Breaker - Single Pole 15A [3221-15]
    Egis Mobile Electric

    Egis A Series Red Toggle Panel Mount Circuit Breaker - Single Pole 15A [3221-15]

    $21.43
    $27.87
    $21.43
    A Series Red Toggle Panel Mount Circuit Breaker - Single Pole 15AFeatures: Easily Mounts In Standard Panels, accepting A-Series and C-Series magnetic-hydraulic circuit breakers. Includes mounting screws. AC & DC Rated to cover a wide range of system application needs. Toggle-Style Actuator for easy...
    $21.43
    $27.87
    $21.43
  • Egis TDR Series Dual Output Time Delay Relay 12V (2 x 80A) [7616]
    Egis Mobile Electric

    Egis TDR Series Dual Output Time Delay Relay 12V (2 x 80A) [7616]

    $190.11
    $253.16
    $190.11
    TDR Series Dual Output Time Delay Relay 12V (2 x 80A)This 12V dual-time relay can prevent dead batteries due to added equipment loads on after-engine stops or from multiple systems connected to a battery with an independent keep-alive power draw, maximizing operational readiness.Applications: Supports...
    $190.11
    $253.16
    $190.11
  • Egis Terminal Block 20A - 4 Circuit [2220-04]Egis Terminal Block 20A - 4 Circuit [2220-04]
    Egis Mobile Electric

    Egis Terminal Block 20A - 4 Circuit [2220-04]

    $7.13
    $8.43
    $7.13
    Terminal Block 20A - 4 CircuitFeatures: Marine Grade Materials Ensure Long Lasting Reliability In Harsh Environment Applications. Screw Terminal Connection Pairs Provide One Input And One Output. Screw Connected To Separate Copper Alloy Bus Bars For Each Matching Connecting Pair. 125V AC or DC...
    $7.13
    $8.43
    $7.13
  • Egis Triple Battery Advanced Automatic Charging Relay (ACR) - 12V [7612]
    Egis Mobile Electric

    Egis Triple Battery Advanced Automatic Charging Relay (ACR) - 12V [7612]

    $178.67
    $265.17
    $178.67
    Triple Battery Advanced Automatic Charging Relay (ACR) - 12VTwo Independent ACRs in One Device reduce installation space and time. Significantly lowers the out-of-state current draw.Features: Eliminates Dead Start Batteries by sharing charge sources with all batteries and isolating batteries when no charge sources are...
    $178.67
    $265.17
    $178.67
  • Egis A Series Red Toggle Panel Mount Circuit Breaker - Single Pole 5A [3221-05]
    Egis Mobile Electric

    Egis A Series Red Toggle Panel Mount Circuit Breaker - Single Pole 5A [3221-05]

    $21.43
    $27.87
    $21.43
    A Series Red Toggle Panel Mount Circuit Breaker - Single Pole 5AFeatures: Easily Mounts In Standard Panels, accepting A-Series and C-Series magnetic-hydraulic circuit breakers. Includes mounting screws. AC & DC Rated to cover a wide range of system application needs. Toggle-Style Actuator for easy...
    $21.43
    $27.87
    $21.43
  • Egis A Series Black Toggle Panel Mount Circuit Breaker - Single Pole 5A [3211-05]
    Egis Mobile Electric

    Egis A Series Black Toggle Panel Mount Circuit Breaker - Single Pole 5A [3211-05]

    $21.43
    $27.87
    $21.43
    A Series Black Toggle Panel Mount Circuit Breaker - Single Pole 5AFeatures: Easily Mounts In Standard Panels, accepting A-Series and C-Series magnetic-hydraulic circuit breakers. Includes mounting screws. AC & DC Rated to cover a wide range of system application needs. Toggle-Style Actuator for easy...
    $21.43
    $27.87
    $21.43
  • Egis MT Series 9+3 Sealed Fuse Block w/Ground Busbar [3493]
    Egis Mobile Electric

    Egis MT Series 9+3 Sealed Fuse Block w/Ground Busbar [3493]

    $134.36
    $179.54
    $134.36
    MT Series 9+3 Sealed Fuse Block with Ground BusbarFeatures: Integrated Deutsch/Amphenol Output Connectors Protects add-On Circuits From Accidental Shorts To Frame Ground Or Battery Negative, Or From Overload Events Expandable with Flex System Compatible Interconnect Busbars For Plug-and-Play Install Split Input 9+3 Circuits *Fuses...
    $134.36
    $179.54
    $134.36
  • Egis XD Single Low Voltage Disconnect w/o Knob - Tinned Wires [8710-1800]
    Egis Mobile Electric

    Egis XD Single Low Voltage Disconnect w/o Knob - Tinned Wires [8710-1800]

    $217.27
    $289.33
    $217.27
    XD Single Low Voltage Disconnect without Knob - Tinned WiresFeatures: Up to 500 Amp Continuous Capability Per Relay / Extremely Compact Footprint Available With or Without Intuitive Front-Facing Manual Override Knobs with the ability to Lock Relay ON or OFF for Servicing Flexible Functionality...
    $217.27
    $289.33
    $217.27
  • Egis XD Single LVD (Low Voltage Disconnect) w/Knob - Tinned Wires [8710-1700]
    Egis Mobile Electric

    Egis XD Single LVD (Low Voltage Disconnect) w/Knob - Tinned Wires [8710-1700]

    $222.99
    $297.62
    $222.99
    XD Single Low Voltage Disconnect with Knob - Tinned WiresFeatures: Up to 500 Amp Continuous Capability Per Relay / Extremely Compact Footprint Available With or Without Intuitive Front-Facing Manual Override Knobs with the ability to Lock Relay On or OFF for Servicing Flexible Functionality...
    $222.99
    $297.62
    $222.99
  • Egis MT Series 6+6 Sealed Fuse Block w/Ground Busbar [3466]
    Egis Mobile Electric

    Egis MT Series 6+6 Sealed Fuse Block w/Ground Busbar [3466]

    $134.36
    $179.54
    $134.36
    MT Series 6+6 Sealed Fuse Block with Ground BusbarFeatures: Integrated Deutsch/Amphenol Output Connectors Protects add-On Circuits From Accidental Shorts To Frame Ground Or Battery Negative, Or From Overload Events Expandable with Flex System Compatible Interconnect Busbars For Plug-and-Play Install Split Input 6+6 Circuits *Fuses...
    $134.36
    $179.54
    $134.36
  • Egis MT Series 3+9 Sealed Fuse Block w/Ground Busbar [3439]
    Egis Mobile Electric

    Egis MT Series 3+9 Sealed Fuse Block w/Ground Busbar [3439]

    $134.36
    $179.54
    $134.36
    MT Series 3+9 Sealed Fuse Block with Ground BusbarFeatures: Integrated Deutsch/Amphenol Output Connectors Protects add-On Circuits From Accidental Shorts To Frame Ground Or Battery Negative, Or From Overload Events Expandable with Flex System Compatible Interconnect Busbars For Plug-and-Play Install Split Input 3+9 Circuits *Fuses...
    $134.36
    $179.54
    $134.36
  • Sea-Dog Rainbow Display Digital Voltmeter - Injection Molded Nylon - 5V-15VDC [421617]
    Sea-Dog

    Sea-Dog Rainbow Display Digital Voltmeter - Injection Molded Nylon - 5V-15VDC [421617]

    $34.29
    $52.82
    $34.29
    Rainbow Display Digital Voltmeter - Injection Molded Nylon - 5V-15VDCThe Rainbow Display Digital Voltmeter gives the user quick, visual, color-coded voltage information. Red/orange means the voltage is too low. Green means the voltage is normal. The same compact round size as a standard 12VDC...
    $34.29
    $52.82
    $34.29
  • Sea-Dog 36" SAE Power Cable Polarized Electrical Connector [426903-1]
    Sea-Dog

    Sea-Dog 36" SAE Power Cable Polarized Electrical Connector [426903-1]

    $9.99
    $12.79
    $9.99
    36" SAE Power Cable Polarized Electrical ConnectorThis SAE-type polarized electrical connector is a two-prong plug and socket connector set. Features:14-gauge duplex wireSpecifications: Length: 36 in. Volts: 12-24 Max Amps: 20A @ 12V Wire Gauge: 14 AWM Weight: 0.17 lb. Specifications: Type: Cables Box Dimensions: 1"H...
    $9.99
    $12.79
    $9.99
  • Sea-Dog Round Red LED Temperature Meter [421618-1]
    Sea-Dog

    Sea-Dog Round Red LED Temperature Meter [421618-1]

    $25.72
    $39.81
    $25.72
    Round Red LED Temperature MeterThe temperature meter includes a prewired temperature sensor with a 6-foot cable and it monitors temperature on a bright LED screen. Features: Reverse polarity protected The same compact round size as a standard 12VDC receptacle, this temperature meter supports many installation...
    $25.72
    $39.81
    $25.72
  • Sea-Dog Dual Volt Meter Rock Switch 10V-48VDC [421636-1]
    Sea-Dog

    Sea-Dog Dual Volt Meter Rock Switch 10V-48VDC [421636-1]

    $35.72
    $54.68
    $35.72
    Dual Volt Meter Rock Switch 10V-48VDCThis digital dual-voltage meter monitors and displays the voltage for the main and auxiliary batteries simultaneously. Rocker switch styling means this voltmeter fits any standard 13/16 in. x 1-7/16 in. rocker switch panel slot. Constructed of injection-molded nylon. Red...
    $35.72
    $54.68
    $35.72
  • Sea-Dog USB A / USB C Square Surface Mount Power Socket [426531-1]Sea-Dog USB A / USB C Square Surface Mount Power Socket [426531-1]
    Sea-Dog

    Sea-Dog USB A / USB C Square Surface Mount Power Socket [426531-1]

    $41.44
    $64.26
    $41.44
    USB A / USB C Square Surface Mount Power SocketThis square surface-mount USB 3.0 & USB-C power socket charges two devices simultaneously. When split, the total 6A output is 3A per side. Features: USB 3.0 features Quick Charging (QC) for supported devices gives enough power...
    $41.44
    $64.26
    $41.44
  • Forespar Lanocote Rust Corrosion Solution - 16 oz. [770003]
    Forespar Performance Products

    Forespar Lanocote Rust Corrosion Solution - 16 oz. [770003]

    $37.15
    $54.25
    $37.15
    Lanocote Rust & Corrosion Solution - 16 oz. LanoCote works on these five basic principles: displaces water, absorbs corrosion, forms moisture barrier, penetrates and high lubricity. LanoCote is extremely effective in preventing and stopping corrosion on all types of metals under all environmental conditions....
    $37.15
    $54.25
    $37.15
  • Pacer Yellow 18 AWG Wire Ferrule - 6mm Length - 25 Pack [TFRL18-6MM-25]
    Pacer

    Pacer Yellow 18 AWG Wire Ferrule - 6mm Length - 25 Pack [TFRL18-6MM-25]

    $5.70
    $7.68
    $5.70
    Yellow 18 AWG Wire Ferrule - 6mm Length - 25 PackWire fraying can quickly become a problem when dealing with IEC (European)-style terminal blocks. As the wire frays, the connection becomes weaker, and the problem will need to be addressed. But all that can...
    $5.70
    $7.68
    $5.70