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Blue Sea 4017 Straight Terminal CableCap - Large

Busbars, Connectors & Insulators, Blue Sea Systems
$11.27
4017 Straight Terminal CableCap - Large Insulates battery terminals which have standard automotive posts. Features: Designed to fit standard automotive posts WARNING: This product can expose you to ch... More Details

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Blue Sea 4018 Square CableCap Insulators Pair Red/Black

Busbars, Connectors & Insulators, Blue Sea Systems
$18.32
Square CableCap Insulators Pair Red/Black Square CableCap insulators - Cable size 1/0 Pair: 1 Red/1 BlackWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) wh... More Details

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Blue Sea 4026 AC Isolation Cover - 5-1/4 x 3-3/4 x 3

Switches & Accessories, Blue Sea Systems
$66.26
4026 AC Isolation Cover - 5-1/4 x 3-3/4 x 3 Features: Provides electrical insulation for exposed panel backs Provides mechanical protection for panel backs protruding into lockers Lightweight material... More Details

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Blue Sea 4027 AC Isolation Cover - 5-1/4 x 7-1/2x3

Switches & Accessories, Blue Sea Systems
$76.13
4027 AC Isolation Cover - 5-1/4 x 7-1/2x3 Features: Provides electrical insulation for exposed panel backs Provides mechanical protection for panel backs protruding into lockers Lightweight material i... More Details

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Blue Sea 4028 AC Isolation Cover - 7-1/2 x 10-1/2x3

Switches & Accessories, Blue Sea Systems
$200.21
4028 AC Isolation Cover - 7-1/2 x 10-1/2x3 Features: Provides electrical insulation for exposed panel backs Provides mechanical protection for panel backs protruding into lockers Lightweight material ... More Details

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Blue Sea 4029 AC Isolation Cover - 8 Position, 1 Column

Switches & Accessories, Blue Sea Systems
$334.16
4029 AC Isolation Cover - 8 Position, 1 Column Features: Provides electrical insulation for exposed panel backs Provides mechanical protection for panel backs protruding into lockers Lightweight mater... More Details

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Blue Sea 4100 Toggle Guard

Switches & Accessories, Blue Sea Systems
$8.45
4100 Toggle Guard Features: Protects circuit breakers from being accidentally switched ON or OFF Fits all A-Series single pole circuit breakers Fits all panel switches Can be used on any brand of circ... More Details

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Blue Sea 4111 360 Panel Adapter for Push Button Reset Only

Switches & Accessories, Blue Sea Systems
$12.68
4111 360 Panel Adapter for Push Button Reset Only Features: Adapts Push Button Reset-Only Thermal Circuit Breaker to Blue Sea Systems' rocker panels and new battery management panels WARNING: This pro... More Details

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Blue Sea 4125 AC A-Series Circuit Breaker Lockout Slide

Switches & Accessories, Blue Sea Systems
$35.24
4125 AC A-Series Circuit Breaker Lockout Slide  Features: Allows only 1 double pole AC circuit breaker to be activated at a time Guarantees that AC power from 2 sources (shore power and genset or inve... More Details

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Blue Sea 4126 AC A-Series Circuit Breaker Lockout Slide

Switches & Accessories, Blue Sea Systems
$38.06
4126 AC A-Series Circuit Breaker Lockout Slide Features: Allows only 1 double pole AC circuit breaker to be activated at a time Guarantees that AC power from 2 or 3 sources (shore power and genset or ... More Details

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Blue Sea 4130 Lockout Slide 2 Position 2 Pole C-Series

Switches & Accessories, Blue Sea Systems
$67.67
4130 Lockout Slide 2 Position 2 Pole C-Series Features: Allows only 1 of a pair of double pole or triple pole AC circuit breakers to be activated at a time Guarantees that AC power from 2 sources (pow... More Details

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Blue Sea 4131 Lockout Slide 2 Position 3 Pole C-Series

Switches & Accessories, Blue Sea Systems
$67.67
4131 Lockout Slide 2 Position 3 Pole C-Series Features: Allows only 1 of a pair of double pole or triple pole AC circuit breakers to be activated at a time Guarantees that AC power from 2 sources (pow... More Details

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Blue Sea 4135 Push Button Reset Only Circuit Breaker Boot - Clear- 2-Pack

Switches & Accessories, Blue Sea Systems
$9.86
Clear Push Button Circuit Breaker Boot - 2-Pack Features: Replaces standard mounting nut for mounting on Thermal Push Button Circuit Breakers only UV resistant material resists discoloration and crack... More Details

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Blue Sea 4136 Push Button Reset Only Circuit Breaker Boot - White - 2-Pack

Switches & Accessories, Blue Sea Systems
$9.86
4136 Push Button Reset Only Circuit Breaker Boot - White - 2-Pack  Features: Replaces standard mounting nut for mounting on Thermal Push Button Circuit Breakers only UV resistant material resists disc... More Details

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Blue Sea 4137 Push Button Reset Only Circuit Breaker Boot - Black

Switches & Accessories, Blue Sea Systems
$9.86
4137 Push Button Reset Only Circuit Breaker Boot - Black Features: Replaces standard mounting nut for mounting on Thermal Push Button Circuit Breakers only UV resistant material resists discoloration ... More Details

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Blue Sea 4138 WeatherDeck® Toggle Switch Boot - Black

Switches & Accessories, Blue Sea Systems
$9.86
4138 WeatherDeck® Toggle Switch Boot - Black Features: Replaces dress nut for mounting on WeatherDeck™ Panel Switches Rated IP67-temporary immersion for 30 minutes UV resistant material resists discol... More Details

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Blue Sea 4141 Switch Meter Toggle SPTT On-On-On

Switches & Accessories, Blue Sea Systems
$32.42
4141 Switch Meter Toggle SPTT On-On-On Used for battery bank selection with voltmeters, or multimeters, in digital, or analog format. Features: Include a three position battery bank label Product Spec... More Details

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Blue Sea 4150 WeatherDeck Toggle Switches

Switches & Accessories, Blue Sea Systems
$21.14
4150 WeatherDeck Toggle Switch Pole/ThrowSPSTActionOFF-ON Specially manufactured by Carling Technologies for use in Blue Sea Systems' WeatherDeck™ Panels When mounted with a WeatherDeck Toggle Sw... More Details

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Blue Sea 4151 WeatherDeck Toggle Switches

Switches & Accessories, Blue Sea Systems
$22.55
4151 WeatherDeck Toggle Switch Pole/ThrowSPSTActionOFF-(ON) Momentary Specially manufactured by Carling Technologies for use in Blue Sea Systems' WeatherDeck™ Panels When mounted with a WeatherDe... More Details

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Blue Sea 4152 WeatherDeck Toggle Switch

Switches & Accessories, Blue Sea Systems
$22.55
4152 WeatherDeck Toggle Switch Pole/ThrowSPDTActionON-OFF-ON Specially manufactured by Carling Technologies for use in Blue Sea Systems' WeatherDeck™ Panels When mounted with a WeatherDeck Toggle... More Details

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Blue Sea 4153 WeatherDeck Toggle Switch

Switches & Accessories, Blue Sea Systems
$22.55
4153 WeatherDeck Toggle Switch Boot Pole/ThrowSPDTAction(ON)-OFF-ON Specially manufactured by Carling Technologies for use in Blue Sea Systems' WeatherDeck™ Panels When mounted with a WeatherDeck... More Details

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Blue Sea 4154 WeatherDeck Toggle Switch (on)-off-(on)

Switches & Accessories, Blue Sea Systems
$22.55
4154 WeatherDeck Toggle Switch Pole/ThrowSPDTAction(ON)-OFF-(ON) Specially manufactured by Carling Technologies for use in Blue Sea Systems' WeatherDeck™ Panels When mounted with a WeatherDeck To... More Details

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Blue Sea 4155 WeatherDeck Toggle Switch

Switches & Accessories, Blue Sea Systems
$63.44
4155 WeatherDeck Toggle Switch Pole/ThrowDPDTActionON-OFF-ON Specially manufactured by Carling Technologies for use in Blue Sea Systems' WeatherDeck™ Panels When mounted with a WeatherDeck Toggle... More Details

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Blue Sea 4160 SS Push Button Switch - Off-On - Blue - 10A

Switches & Accessories, Blue Sea Systems
$56.39
4160 SS Push Button Switch - Off-On - Blue - 10A 10A continuous Single Pole Double Throw or Single Pole Single Throw Can be wired for normally open or normally closed Installs with .110inch quick conn... More Details

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Blue Sea 4161 SS Push Button Switch - Off-(On) - Blue - 10A

Switches & Accessories, Blue Sea Systems
$56.39
4161 SS Push Button Switch - Off-(On) - Blue - 10A 10A continuous Single Pole Double Throw or Single Pole Single Throw Can be wired for normally open or normally closed Installs with .110inch quick co... More Details

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Northern Marine Canada
Proudly Canadian Owned & Operated!
Serving customers across Canada & the USA with marine parts and accessories.
Canadian Head Office:
Kingston, Ontario, Canada
Warehouse Locations:
Toronto, Ontario, Canada
New Jersey, USA
Florida, USA

About Us

Northern Marine is a Canadian supplier of premium marine and RV parts and accessories from top industry brands. We focus on quality, accurate listings, and dependable fulfillment so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: get you the right parts, shipped fast, with straightforward service you can count on.