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Marine Electrical systems are the backbone of a dependable and efficient vessel, delivering the power needed to keep your essential equipment operating at its best. Designed to perform in demanding marine environments, today's electrical components combine rugged durability, reliable performance, and advanced technology to withstand moisture, vibration, and corrosion. From batteries, battery chargers, inverters, switches, circuit protection, wiring, and power distribution panels to complete electrical accessories, the right equipment helps ensure safe, consistent power throughout your boat. Whether you're upgrading an existing electrical system or building a new one, premium marine electrical products provide the reliability and confidence trusted by boaters and marine professionals alike. Explore our selection of marine electrical solutions and let our experts help you find the right components to power every adventure on the water.

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  • Blue Sea 4138 WeatherDeck Toggle Switch Boot - Black [4138]
    Blue Sea Systems

    Blue Sea 4138 WeatherDeck Toggle Switch Boot - Black [4138]

    £3.83
    £4.59
    £3.83
    4138 WeatherDeck® Toggle Switch Boot - BlackFeatures: Replaces dress nut for mounting on WeatherDeck™ Panel Switches Rated IP67-temporary immersion for 30 minutes UV resistant material resists discoloration and cracking WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to...
    £3.83
    £4.59
    £3.83
  • Blue Sea 5238 4A ATO/ATC Fuse [5238]
    Blue Sea Systems

    Blue Sea 5238 4A ATO/ATC Fuse [5238]

    £2.29
    £3.06
    £2.29
    5238ATO/ATC Fuse4A Fast-acting type fuse ideal for electronic devices Standard circuit protection device for automobiles and trucks Tin-plated connector blades for corrosion resistance Visible indication of blown condition Sold in packages of 2 WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp)...
    £2.29
    £3.06
    £2.29
  • Balmar Pulley Kit f/Yanmar 3JH2-TE, 3JH2-E [48-YSP-3JH-C]
    Balmar

    Balmar Pulley Kit f/Yanmar 3JH2-TE, 3JH2-E [48-YSP-3JH-C]

    £528.88
    £0.00
    £528.88
    Pulley Kit for Yanmar 3JH2-TE, 3JH2-EAltMount® Serpentine Pulley Conversion Kit for Yanmar Diesel EnginesYanmar Engines Covered: 3JH2-TE, 3JH2-EKit Includes: Three Ten-Groove (J10) Pulleys, Two J10, 45″ Circumference Serpentine Belts (one spare) & Mounting HardwareNote:  If you specify an AT-200A Alternator, a longer belt length...
    £528.88
    £0.00
    £528.88
  • Blue Sea 7611 DC BatteryLink Automatic Charging Relay - 120 Amp w/Auxiliary Battery Charging [7611]Blue Sea 7611 DC BatteryLink Automatic Charging Relay - 120 Amp w/Auxiliary Battery Charging [7611]
    Blue Sea Systems

    Blue Sea 7611 DC BatteryLink Automatic Charging Relay - 120 Amp w/Auxiliary Battery Charging [7611]

    £76.70
    £111.98
    £76.70
    7611 DC BatteryLink™ Automatic Charging Relay - 120 Amp w/Auxiliary Battery ChargingFeatures: 120 Amp continuous rating 12/24V DC auto ranging voltage input Senses charging on two battery banks Side and bottom knockouts for cable connections Clip-on cover insulates terminal connections 7/8" (22 mm) stud...
    £76.70
    £111.98
    £76.70
  • Newmar 32-12-35 DC-DC Converter 20-50VDC To 13.6 Vdc @ 35A
    Newmar

    Newmar 32-12-35 DC-DC Converter 20-50VDC To 13.6 Vdc @ 35A

    £866.99
    £1,071.59
    £866.99
    WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.Brand: NewmarUPC: 347729213312Model Number: 420-3545-0Weight: 30.000000
    £866.99
    £1,071.59
    £866.99
  • Scanstrut SS Low-Profile Cable Seal f/Cables 2-8mm [DS-LP-16-S]
    Scanstrut

    Scanstrut SS Low-Profile Cable Seal f/Cables 2-8mm [DS-LP-16-S]

    £36.04
    £52.92
    £36.04
    Stainless Steel Low-Profile Cable Seal for Cables 2-8mmThe DS-LP-16-S Low-Profile Cable Seal is engineered to effortlessly accommodate cables ranging from 2–8 mm (0.08"–0.35") and connectors up to Ø16mm (0.63"), ensuring a seamless and impact-resistant solution.Premium ConstructionCrafted with attention to detail, its marine-grade 316 stainless steel...
    £36.04
    £52.92
    £36.04
  • Forespar Lanocote Rust Corrosion Solution - 4 oz. [770001]
    Forespar Performance Products

    Forespar Lanocote Rust Corrosion Solution - 4 oz. [770001]

    £9.96
    £13.77
    £9.96
    Lanocote Rust & Corrosion Solution - 4 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....
    £9.96
    £13.77
    £9.96
  • Blue Sea 8033 Amber LED Indicator Light [8033]
    Blue Sea Systems

    Blue Sea 8033 Amber LED Indicator Light [8033]

    £3.06
    £3.83
    £3.06
    8033 Amber LED Indicator LightFeatures: Amber 12/24V DC 5 Milliamperes Easily installed in any Blue Sea Systems circuit breaker panel Simple push-in installation mounts in any thickness material Useful as general indicator and alarm lights WARNING: This product can expose you to chemicals including...
    £3.06
    £3.83
    £3.06
  • Sea-Dog Thermal AC/DC Circuit Breaker - Splash Guard Boot [420839-1]
    Sea-Dog

    Sea-Dog Thermal AC/DC Circuit Breaker - Splash Guard Boot [420839-1]

    £3.83
    £4.79
    £3.83
    Thermal AC/DC Circuit Breaker - Splash Guard BootThermal AC/DC Circuit Breakers are designed to protect an electrical circuit from damage caused by excess current. Vibration and shock resistant these push-to-reset circuit breakers are an economical alternative to magnetic breakers. Unlike sacrificial fuses they have...
    £3.83
    £4.79
    £3.83
  • Marinco CS504-25 EEL 50A 125V/250V Shore Power Cordset - 25' - Yellow [CS504-25]Marinco CS504-25 EEL 50A 125V/250V Shore Power Cordset - 25' - Yellow [CS504-25]
    Marinco

    Marinco CS504-25 EEL 50A 125V/250V Shore Power Cordset - 25' - Yellow [CS504-25]

    £447.96
    £712.24
    £447.96
    50A 125V/250V CordsetEEL ShorePower CordsetsOne Hand. A simple twist. Full Power.The EEL (Easily Engaged Lock) ShorePower Cordset has an industry first, jaw-clamp design providing one-handed operation and a secure waterproof seal which completely eliminates the need for a locking ring. The EEL connection is...
    £447.96
    £712.24
    £447.96
  • Newmar 1-2-120A Isolator 1AIT 2BATT 120AMP
    Newmar

    Newmar 1-2-120A Isolator 1AIT 2BATT 120AMP

    £158.29
    £195.60
    £158.29
    These heavy duty isolators allow charging multiple batteries automatically from one or two alternators, and prevent discharge or 'dumping" of one battery into another. Each battery is charged according to its need without overcharging. rated for 12-48 volt negative ground DC systems. feature conservatively...
    £158.29
    £195.60
    £158.29
  • BLUE SEA Circuit Breaker, Bus 285 SfcMt 40 A | 7182-BSS
    Blue Sea

    BLUE SEA Circuit Breaker, Bus 285 SfcMt 40 A | 7182-BSS

    £42.59
    £61.36
    £42.59
    BLUE SEA Circuit Breaker, Bus 285 SfcMt 40 A | 7182-BSSBrand: Blue SeaUPC: 632085071820Model Number: 7182-BSSWeight: 0.5 Length: 2 Height: 8 Width: 5
    £42.59
    £61.36
    £42.59
  • Sea-Dog 8 AWG Yellow Primary Wire - 100' [8008032]
    Sea-Dog

    Sea-Dog 8 AWG Yellow Primary Wire - 100' [8008032]

    £70.56
    £152.25
    £70.56
    8 AWG Yellow Primary Wire - 100'Tinned Copper Stranded Wire. Sea-Dog Marine Wire™ is offered in all gauges and colors for primary marine wire applications. All 18 AWG - 6 AWG wire is designed and manufactured for marine use with tinned copper wire for...
    £70.56
    £152.25
    £70.56
  • Sea-Dog 12/2 AWG Flat Duplex Safety Wire - Red/Yellow - 100' [8012222]
    Sea-Dog

    Sea-Dog 12/2 AWG Flat Duplex Safety Wire - Red/Yellow - 100' [8012222]

    £62.12
    £145.20
    £62.12
    12/2 AWG Flat Duplex Safety Wire Red/Yellow - 100'Tinned Copper Stranded Wire. Sea-Dog Marine Wire™ is offered in 16/2- 6/2 gauges for duplex boat cable installations. All duplex cable is sheathed in PVC and is flat in construction. It is designed and manufactured for...
    £62.12
    £145.20
    £62.12
  • Sea-Dog 14 AWG Dark Blue Primary Wire - 25' [8014060]
    Sea-Dog

    Sea-Dog 14 AWG Dark Blue Primary Wire - 25' [8014060]

    £6.13
    £12.93
    £6.13
    14 AWG Dark Blue Primary Wire - 25'Tinned Copper Stranded Wire. Sea-Dog Marine Wire™ is offered in all gauges and colors for primary marine wire applications. All 18 AWG - 6 AWG wire is designed and manufactured for marine use with tinned copper wire for...
    £6.13
    £12.93
    £6.13
  • Sea-Dog 8 AWG Red Primary Wire - 100' [8008022]
    Sea-Dog

    Sea-Dog 8 AWG Red Primary Wire - 100' [8008022]

    £70.56
    £152.25
    £70.56
    8 AWG Red Primary Wire - 100'Tinned Copper Stranded Wire. Sea-Dog Marine Wire™ is offered in all gauges and colors for primary marine wire applications. All 18 AWG - 6 AWG wire is designed and manufactured for marine use with tinned copper wire for...
    £70.56
    £152.25
    £70.56
  • Sea-Dog 12/2 AWG Flat Duplex Safety Wire - Red/Yellow - 250' [8012224]
    Sea-Dog

    Sea-Dog 12/2 AWG Flat Duplex Safety Wire - Red/Yellow - 250' [8012224]

    £144.20
    £352.38
    £144.20
    12/2 AWG Flat Duplex Safety Wire Red/Yellow - 250'Tinned Copper Stranded Wire. Sea-Dog Marine Wire™ is offered in 16/2- 6/2 gauges for duplex boat cable installations. All duplex cable is sheathed in PVC and is flat in construction. It is designed and manufactured for...
    £144.20
    £352.38
    £144.20
  • Sea-Dog 1 AWG Yellow Battery Cable - 50' [8001031]
    Sea-Dog

    Sea-Dog 1 AWG Yellow Battery Cable - 50' [8001031]

    £145.73
    £356.49
    £145.73
    1 AWG Yellow Battery Cable - 50'Tinned Copper Stranded Wire. Battery Cable is available in all colors in accordance with ABYC standard. 600V 105°C DRY (75°C WET) and oil resistant. UL Listed Boat Cable. Made in the U.S.A.WARNING: This product can expose you to...
    £145.73
    £356.49
    £145.73
  • Sea-Dog 12/2 AWG Flat Duplex Wire - Red/Black - 250' [8012204]
    Sea-Dog

    Sea-Dog 12/2 AWG Flat Duplex Wire - Red/Black - 250' [8012204]

    £144.97
    £354.35
    £144.97
    12/2 AWG Flat Duplex Wire Red/Black - 250'Tinned Copper Stranded Wire. Sea-Dog Marine Wire™ is offered in 16/2- 6/2 gauges for duplex boat cable installations. All duplex cable is sheathed in PVC and is flat in construction. It is designed and manufactured for marine...
    £144.97
    £354.35
    £144.97
  • Sea-Dog 7 Key Kill Switch Universal Lanyard [420495-1]
    Sea-Dog

    Sea-Dog 7 Key Kill Switch Universal Lanyard [420495-1]

    £7.66
    £9.93
    £7.66
    7 Key Kill Switch Universal Lanyard This marine emergency cut-off 7 Key Universal Kill Switch with Lanyard attaches to your life vest while operating a boat or personal watercraft. Designed to instantly cut battery power when detached. Constructed of injection molded nylon and Delrin. The...
    £7.66
    £9.93
    £7.66