Multi Fittings 78243 Pvc Junction Box 4x4x4 Screw Cover

Product Description

The MULTI FITTINGS 78243 is a PVC junction box rated for 56 cubic inches of capacity, designed for use in electrical installations where moisture and dust ingress protection are critical. Built to IP66 and IP67 ratings, the enclosure resists high-pressure water jets and temporary submersion, making it suitable for demanding indoor and outdoor environments. The screw-cover design provides secure access for wire terminations, splices, and connection points. Electricians and electrical contractors working on commercial and residential systems rely on this type of box for conduit pull points, branch circuit junctions, and protected wiring enclosures.

This junction box is commonly installed in wet locations, industrial areas, and outdoor applications where a standard metal box would be prone to corrosion. The PVC construction eliminates rust concerns in humid or corrosive environments. With a 4 x 4 x 4 inch nominal trade size, it provides adequate interior volume for multiple conductors and wire connectors. It is part of the B Series line from MULTI FITTINGS and is appropriate for use in conduit systems where screwed-cover PVC enclosures are specified by code or design.

Key Features

• IP66 and IP67 dual rating for protection against high-pressure water and temporary immersion
• PVC construction resists corrosion, rust, and chemical exposure in wet or outdoor locations
• 56 cubic inch interior capacity provides room for conductor splices and wire connectors
• Screw-cover door type ensures a secure, tamper-resistant closure
• 4 x 4 x 4 inch nominal trade size fits standard conduit layouts and mounting configurations
• Part of the B Series, designed for consistent fitment within the MULTI FITTINGS PVC conduit system

Compatibility

Designed as an OEM-style replacement and standard-fitment junction box for PVC conduit systems requiring a 4 x 4 x 4 inch screw-cover enclosure with IP66 and IP67 protection.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize all circuits before opening or making connections inside the enclosure. Ensure all conduit entries are properly sealed with appropriate fittings to maintain the IP66 and IP67 ratings after installation. Avoid over-filling the box beyond its rated 56 cubic inch capacity, as conductor fill calculations must comply with NEC Chapter 9 requirements.