Hubbell EKJ212 Expansion Proof Coupling 3/4x12

Product Description

The HUBBELL EKJ212 is an expansion-proof coupling designed for use in electrical conduit systems where thermal expansion and contraction must be accommodated. Sized at 3/4 inch by 12 inches, this coupling connects conduit runs while allowing longitudinal movement, preventing stress buildup in the conduit system over time. It is installed by licensed electricians in both commercial and industrial applications where rigid metal conduit is required and temperature cycling is a known factor in the environment.

This coupling is suited for installations in indoor and outdoor environments where conduit systems experience significant thermal movement. Typical applications include industrial facilities, utility installations, and commercial buildings where long conduit runs cross expansion joints or are exposed to varying temperature conditions. The 3/4 inch trade size accommodates standard rigid or intermediate metal conduit of that diameter.

Key Features

• Accommodates thermal expansion and contraction in rigid conduit runs
• 3/4 inch trade size fits standard rigid and intermediate metal conduit
• 12 inch body length provides adequate travel range for expansion movement
• Designed for use at conduit expansion joints in commercial and industrial systems

Compatibility

Designed as an OEM-style replacement fitting for 3/4 inch rigid or intermediate metal conduit expansion joint applications in commercial and industrial electrical installations.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize the circuit and verify lockout/tagout procedures are complete before working on any conduit system. The coupling must be properly bonded and grounded as part of the conduit assembly. Follow the manufacturer's alignment guidelines to ensure the expansion element moves freely without binding after installation.

Technical Specifications

• Trade Size: 3/4 inch
• Body Length: 12 inches
• Type: Expansion-Proof Coupling

Standard Information

• Brand: HUBBELL
• Manufacturer Part Number: EKJ212