Topaz Lighting Rigid Expansion Coupling, Hot-Dip Galvanized Steel

Topaz Lighting Rigid Expansion Coupling, Hot-Dip Galvanized Steel

The Topaz Lighting Rigid Expansion Coupling is engineered to accommodate up to 4" of linear movement caused by thermal expansion and contraction in rigid conduit systems. Available in 3/4" trade size, this coupling features a weatherproof design that makes it ideal for outdoor structures and environments subject to structural movement. The internal grounding design eliminates the need for external bonding jumpers and cables, simplifying installation and ensuring code-compliant continuity. A hot-dip galvanized finish delivers superior protection against severe environmental factors.

Key Features

• Maximum Linear Movement: Accommodates up to 4" of linear movement caused by thermal expansion and contraction in rigid conduit runs.
• Durable Construction: Hot-dip galvanized (HDG) steel construction provides superior corrosion resistance against severe environmental conditions.
• Weatherproof Design: Suitable for outdoor installations on structures prone to movement, including bridges, railroads, and buildings.
• Internal Grounding: Built-in internal grounding design eliminates the need for external bonding jumpers and cables, streamlining installation.
• Finish: Hot-dip galvanized finish for long-lasting protection in harsh and outdoor environments.
• Conduit Type: Designed for use with Rigid conduit systems.

Certifications & Compliance

• Weatherproof Design — Suitable for Outdoor Use
• Internal Grounding — No External Bonding Jumper Required

Technical Specifications

• list_batch: TOPAZ-20260727

Typical Applications

• Rigid Conduit Systems Subject to Thermal Expansion and Contraction
• Outdoor Electrical Installations on Bridges and Railroads
• Commercial and Industrial Building Conduit Runs
• Structures Prone to Environmental Movement and Vibration
• Renovation and New Construction Requiring Expansion Compensation

Why Topaz Lighting?

Topaz Lighting Rigid Expansion Couplings are built to perform in demanding outdoor and industrial environments, combining hot-dip galvanized steel construction with an integrated internal grounding design for reliable, code-compliant conduit system performance. The weatherproof design and superior corrosion-resistant finish make these couplings a trusted choice for professional electricians working on structures exposed to movement and severe environmental conditions. Topaz Lighting delivers quality fittings engineered to meet the rigorous demands of commercial and industrial electrical installations.