Abb TCU40 Universal Raintight Hub 4 Inches

Product Description

The ABB TCU40 is a large-base universal raintight hub designed for use in electrical conduit installations where weathertight entry points are required. With a 4-inch diameter, this hub provides a secure, moisture-resistant connection point for conduit entering enclosures, panels, or junction boxes exposed to wet or outdoor conditions. Electricians install this hub as part of raintight conduit systems to maintain code-compliant weatherproofing at the conduit-to-enclosure interface.

The TCU40 is suited for residential and commercial electrical installations where conduit enters outdoor or damp-location enclosures. Its universal design accommodates a range of install scenarios, making it a practical choice for service entrance work, outdoor panel terminations, and similar applications requiring raintight conduit entry.

Key Features

• 4-inch diameter for large-base conduit entry applications
• Raintight construction for wet and outdoor location use
• Universal hub design compatible with a range of enclosure types
• Large base provides stable, secure mounting at the enclosure wall

Compatibility

Designed as an OEM-style raintight conduit hub for use with 4-inch conduit systems at outdoor or damp-location electrical enclosures and panels.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements for raintight fittings in wet locations. De-energize all circuits at the panel before beginning conduit entry work. Ensure the hub is fully seated and properly torqued against the enclosure wall to maintain the raintight rating. Inspect the sealing surface of the enclosure knockout for damage before installation.

Technical Specifications

• Diameter: 4 inches
• Hub Type: Universal Raintight
• Base Size: Large
• UPC: 783164448986

Standard Information

• Brand: ABB
• Manufacturer Part Number: TCU40