Scanstrut SB-8-5 Marine Junction Box for Waterproof Cable Connections

SB-8-5 Junction Box

Scanstrut's SB-8-5 Junction Box is perfect for installations if you need to create a waterproof connection for multiple electrical cables.

Heavy-duty junction box manufactured from marine grade polypropylene and with features 5 screw-down terminals.

Depending on the number of terminations required the terminal blocks can be individually fitted or blocked together. Supplied with 5 modular terminal blocks. Offering 5 terminations.

Cables push fit into the terminals and are secured with a sprung leaf retention system that does not damage the wire. The terminal can be removed for easy fitting of cables.

Features:

• Provides 5 screw-down terminals.
• Capacity for up to eight (8) cables to enter the box.
• Watertight Installation - Cables are quickly routed into the box through an IP66 elastomeric membrane, guaranteeing protection against water ingress.
• Upgradable to IP68 with use of SB-2G Cable Seals (sold separately)

Technical Specifications:

• Maximum cable size (diameter) - .50" (12 mm)
• Maximum wire size - 16/1.5 to 11/4
• Dimensions (L x W x H) - 3.35" x 3.35" x 2" (85 x 85 x 50 mm)
• Five (5) terminal block w/400 V rating and 32 A
• Color - Grey
• Material - Marine grade polypropylene

In the Box:

• Junction box w/five (5) screw-down terminal block
• Mounting hardware
• Installation manual

*Sold as an Individual

The Scanstrut SB-8-5 Junction Box is designed for reliable, waterproof electrical connections in marine environments. Crafted from durable marine-grade polypropylene, this heavy-duty junction box features five screw-down terminals that facilitate secure wiring for various installations. Its modular design allows the terminal blocks to be individually fitted or combined, providing flexibility based on the number of cables requiring connection. Cables are easily inserted into the terminals through a push-fit system that employs a sprung leaf retention mechanism, ensuring gentle yet firm contact without damaging wire insulation. The box includes five modular terminal blocks rated for up to 400 volts and 32 amps, accommodating wire sizes from 16/1.5 to 11/4. This configuration makes it suitable for a wide range of electrical applications aboard boats, ships, or other outdoor setups requiring waterproof connections. The SB-8-5 features an IP66 elastomeric membrane that allows quick routing of cables into the enclosure while providing excellent water ingress protection. Additionally, it can be upgraded to IP68 with the use of SB-2G cable seals, sold separately, for enhanced waterproofing in more demanding environments. Its compact dimensions ensure easy installation in tight spaces, and the included mounting hardware simplifies setup. The junction box is ideal for creating secure, waterproof electrical connections in marine or outdoor settings where durability and reliability are critical. Whether used for lighting, instrumentation, or power distribution, the SB-8-5 offers a practical solution for safe and efficient wiring connections in challenging conditions, backed by the trusted quality of Scanstrut.

Features:

• Provides 5 screw-down terminals for secure wiring connections.

• Capable of handling up to eight cables entering the box.

• Watertight installation with an IP66 elastomeric membrane for water ingress protection.

• Upgradable to IP68 with SB-2G cable seals (sold separately) for enhanced waterproofing.

• Constructed from marine-grade polypropylene for durability in harsh environments.

• Cables are secured with a sprung leaf retention system that prevents wire damage.

• Includes five modular terminal blocks rated for 400 V and 32 A.

• Compact design suitable for tight installation spaces.