Marine Brass Junction Box 1151

This marine brass junction box (model 1151) is a heavy-duty electrical enclosure engineered for shipboard and offshore environments. The corrosion-resistant brass construction ensures long-lasting performance in saltwater, humid, and high-vibration conditions, making it a reliable choice for connecting and protecting wiring in engine rooms, deck areas, and navigation systems.

Designed with an IP66-rated waterproof seal, the 1151 junction box shields electrical connections from water jets, heavy rain, and condensation. Its compact yet spacious interior accommodates a 5-way terminal block, providing secure terminations for marine electrical systems up to 440V and 30A. Whether used for new installations or retrofits, this junction box meets the demanding requirements of marine professionals.

Key Features

Technical Specifications

SpecificationValue
MaterialMarine-grade brass
Model1151
Ingress ProtectionIP66
Dimensions (L x W x H)115 x 115 x 50 mm
Terminal Block5-way, 30A / 440V
Conduit Entries2 x 1/2" NPT
Waterproof SealNeoprene gasket
MountingWall or panel mount with brass studs
StandardsIEC 60529 / UL 508A (typical)

Frequently Asked Questions

What is a marine brass junction box used for?

A marine brass junction box provides a safe, weatherproof enclosure for splicing and terminating electrical cables in shipboard and offshore installations. It protects connections from moisture, salt spray, and mechanical damage.

Is this junction box suitable for underwater use?

No, the IP66 rating means it is protected against powerful water jets and heavy seas, but it is not designed for permanent submersion. For underwater applications, a different IP68-rated enclosure would be required.

What wire sizes can be terminated in the 5-way terminal block?

The terminal block accepts conductors up to 10 AWG (6 mm²) with a maximum rated current of 30A and voltage of 440V AC/DC.

Can I install this junction box on an aluminum or steel bulkhead?

Yes, the box features brass mounting studs that are compatible with standard marine brackets. For aluminum hulls, use appropriate isolation gaskets to prevent galvanic corrosion.

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