Strain Relief Fittings meet pullout requirements without external clamping.

Press Release Summary:

Kopex-Ex™ ISR™ industrial strain-relief fittings are intended for use with tray cable, portable cords, and other unarmored cables in industrial applications, including drill rigs in oil and gas processing industry. While facilitating and accelerating installation, feature integral clamping mechanism enables full compliance with IEC pullout requirements without external clamping. Products carry IEC Ex, ATEX, CSA, and UL certifications.

Original Press Release:

Kopex-Ex(TM) ISR(TM) Fittings Meet Pullout Requirements Without External Clamping

New T&B Industrial Strain-Relief Fittings' Integral Clamping Saves Installation Time and Cost

MEMPHIS, Tenn. – Kopex-Ex™ ISR™ Fittings, new from Thomas & Betts (T&B), feature an integral clamping mechanism that enables the industrial strain-relief fittings to comply fully with the International Electrotechnical Commission (IEC)’s pullout requirements without external clamping.

"The integral clamping mechanism in the Kopex-Ex™ ISR™ Fitting was designed in response to industry end users who were looking for a quicker and easier way to install strain-relief fittings," said Ralph Donati, product marketing director at T&B. "Most strain-relief fittings are designed to meet only 25 percent of the IEC pullout requirements, leaving the installer to provide additional clamping where the cables exit the enclosure, so that pulling and twisting won’t affect the terminations. By eliminating this step, Kopex-Ex™ ISR™ Fittings simplify installation, which results in reduced installation time and cost."

Kopex-Ex™ ISR™ Fittings are strain-relief fittings for use with tray cable, portable cords and other unarmored cables for industrial applications, including drill rigs in the oil and gas processing industry. They are IEC Ex, ATEX, CSA and UL certified.

For more information about the new Kopex-Ex™ ISR™ Fittings from T&B, please visit and look for "Kopex-Ex™" on the "Brands" tab, or call (800) 238-5000.

Thomas & Betts Corporation, a member of the ABB Group, is a global leader in the design, manufacture and marketing of essential components used to manage the connection, distribution, transmission and reliability of electrical power in utility, industrial, commercial, and residential applications. With a portfolio of more than 200,000 products marketed under more than 45 premium brand names, Thomas & Betts products are found wherever electricity is used. Thomas & Betts’ headquarters are in Memphis, Tenn. For more information, please visit

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