Junction Box

Product Overview

For Marine Electrical Cables


The “fit and forget” Junction Box range is the perfect sailing accessory for anyone planning boat maintenance.

Providing secure, watertight connections for marine electrical cables onboard any boat, they are manufactured from a glass reinforced plastic and provide capacity for up to 8 cables to enter the box.



  • Standard or Deluxe Options Available
    Choice of ‘Standard’ box with 5 screw-down terminals or a ‘Deluxe’ version which includes 10 fast-fit terminals for a quicker install
  • Watertight Installation
    Cables are quickly routed into the box through an IP66 elastomeric membrane, guaranteeing protection against water ingress.
  • Mounting Bracket Included
    Boxes can be fitted directly to the required mounting surface. A surface mounting bracket is also included to allow removal of the box for inspection if necessary. 


Upgrade your Junction Box to IP67

High risk of severe exposure to water ingress? A Cable Seal upgrade kit is available to upgrade your Junction Box to IP67.

The IP67 cable seals screw into the boxes at the cable entrance points and can accept cables from 4mm - 12mm Ø [0.15” – 0.48”]. 


Find your Part Number:

  • SB-8-5 Standard Junction Box - 5 screw-down terminals
  • SB-8-10 Deluxe Junction Box - 10 fast-fit terminals
  • SB-2G Cable Seal Pack (x 2 per pack) 

Dimension diagram


Max cable Ø

mm (inch) 

Wire guage

Ga. (mm) 

 Voltage RatedCurrent Rated No. of connections 
SB-8-5  12 (0.5) 16 (1.5) - 11(4) 400V 32A 5
SB-8-10 12 (0.5) 28(0.08) - 12(3.3) 600V 20A 10

Download information on Junction Box
Technical information
How to install your Scanstrut
Scanstrut brochure

Find your part number

To find your Scanstrut part number, please select your marine electronics from the options below and click 'Search'.

No accessories are available for this product.

Some answers to frequently asked questions...

General F.A.Q.'s

I have some old electronics, how can I work out if they will fit your products?

If your electronics are not listed in our part number table, please contact Scanstrut as we may be able to assist with compatibility.

Where can I order this product?

Scanstrut products are available worldwide via our network of distributors.

Visit our ‘Where to Buy’ page to find your local dealer.

Can I see this product installed / on display anywhere?

Scanstrut products are displayed at various boat shows throughout the season. Click on 'News & Shows' to view the upcoming boat shows.

Alternatively, find your local dealer on our where to buy page and see if they have a store to visit.

I am upgrading my marine electronics, will I be able to use the same Scanstrut mount?

It all depends on the electronics you are using - please contact Scanstrut for further assistance.

What part no. do I require?

To find your part number, click on the ‘Find your Part Number’ tab.

How much does the product cost?

Pricing for Scanstrut products is available from our network of distributors.

Contact them directly for your local pricing.

I am from the press and I would like more information / pictures on your product.

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Click on 'Contact Us' in the menu bar to send your message.

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