ABB - Installation Products STEX350 - Star Teck Extreme hazardous location aluminum jacketed cable fitting. Hub size of 3-1/2 inch. Range over jacket from 2.670 - 3.270 inches.
ABB - Installation Products

STEX350

UPC: 786210996790


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Overview

The ABB Star Teck Extreme STEX350 is a hazardous location cable fitting engineered for explosion-proof environments. Key specifications include a 3-1/2 inch NPT hub size, designed to accommodate cables with an outer jacket diameter ranging from 2.670 to 3.270 inches. The fitting features a removable armor-stop for enhanced installation flexibility, allowing a single unit to cover multiple cable sizes. The aluminum jacketed construction provides robust protection in challenging industrial settings, including Class I, Division 1, Groups A-D; Class II, Division 1, Groups E-G; and Class III hazardous locations per NEC requirements. The STEX350 includes a Powergrip grounding ring for secure cable armor termination and a built-in sealing device for water- and oil-resistant performance. An elastomeric collar ring/bushing ensures a tight seal across the full cable range, while the built-in jacket stripping gauge on the gland nut simplifies installation. The gland nut can be tightened with a hammer and screwdriver for added convenience in tight spaces. This fitting is suitable for applications requiring reliable and secure cable termination in potentially explosive atmospheres, including wet locations and concrete-tight installations. The STEX350 is part of ABB’s trusted Star Teck Extreme series, designed to meet the demands of harsh and corrosive environments while minimizing field mismatches through overlapping hub ranges.
  • 3-1/2 inch NPT hub size for hazardous location cable termination
  • Accommodates outer jacket diameters from 2.670 to 3.270 inches
  • Removable armor-stop for flexible cable range coverage
  • Powergrip grounding ring for secure armor termination
  • Built-in sealing device and jacket stripping gauge for simplified installation

Specifications

Application
For Hazardous Locations
Color
Red;Silver
Material
Aluminum
Series
STAR TECK EXTREME
Size
3-1/2 Inch
Size
3-1/2 Inches
Standard
UL E82038, CSA 23086
Type
Teck Cable Fittings
Package Dimensions (L x W x H)
5.5 IN x 5.5 IN x 8 IN
Package Dimensions (L x W x H)
13.97 cm x 13.97 cm x 20.32 cm
Package Weight (Imperial)
8.3300 L
Package Weight (Metric)
3.7790 kg
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How to Install the STEX350 Cable Fitting

Instructions for preparing and installing the STEX350 cable fitting, including sealing procedures.

Estimated time: 1h

Tools needed:

Hacksaw, Screwdriver, Dowel

Supplies needed:

Sealing compound (SC4-KIT-1 or SC65), Fiber damming material (if using SC4-KIT-1)

  1. Prepare the cable jacket and armor

    Determine the working length of the conductors. Remove a portion of the outer jacket to expose the armor. Cut the armor using a hacksaw to the strip length indicated in the table. Do not nick the conductor insulation.

  2. Trim the outer jacket and test armor stop

    Trim the outer jacket to expose the armor strip length. Test the inner conductor bundle by inserting the ends into the armor stop opening. If the bundle does not pass, remove and discard the armor stop.

  3. Feed cable through gland nut

    Feed the cable through the gland nut opening and push until the cable armor hits the armor stop (if not removed).

  4. Tighten the gland nut

    Tighten the gland nut until an appropriate seal is obtained or to the maximum torque specified in the table. Ensure the cable remains centered for an optimal seal.

  5. Disassemble hub and sealing chamber

    Loosen the union to disassemble the hub from the body sub-assembly. Unscrew the sealing chamber from the body sub-assembly. If the removable armor stop was not removed earlier, unscrew and discard it.

  6. Trim inner jacket

    Trim the inner jacket to a length of 1/8"-3/8" to expose the conductor bundle. For shielded data cables, follow the specific instructions in Section 2.

  7. Apply sealing compound

    Depending on the type of sealing compound used (liquid SC4-KIT-1 or putty SC65), follow the specific instructions in Section 3 or Section 4 to pack the sealing chamber and around the conductors. Ensure all voids are filled and excess compound is removed.

  8. Mount the hub

    Once the sealing compound has solidified (approximately 1 hour), place the encapsulated assembly into the hub and secure it by tightening the union until metal-to-metal contact is achieved.

Frequently Asked Questions about ABB - Installation Products

How are Thomas and Betts products typically installed?

Thomas and Betts products are installed using a variety of methods tailored to specific applications, including the use of flexible cords and cable fittings, non-metallic cable glands, and armored cable fittings. Proper selection of fittings is crucial to match the cable type and installation environment, ensuring durability and preventing physical damage. Tools such as the Blackburn® Comfort Crimp® and HEX-FLEX® systems enhance installation efficiency and reliability, reducing labor time and ensuring secure connections.

What accessories are available for Thomas and Betts products?

Thomas and Betts offers a comprehensive range of accessories for their products, including various cord and cable fittings, non-metallic cable glands, service entrance cable fittings, and armored cable fittings. Their accessories are designed to enhance installation efficiency and ensure compatibility with different cable types and environmental conditions, providing reliable connections for a wide array of applications.

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Thomas and Betts products are known for their innovative designs, high performance, and compliance with industry standards such as the National Electrical Code and Underwriters' Laboratories. They offer a comprehensive range of rugged and reliable electrical fittings, including liquidtight and dust-tight connections, which enhance installation efficiency and reduce overall project costs. Their products are engineered for durability in harsh environments, ensuring long-term reliability and lower installed costs.

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What are the main product lines offered by Ocal?

Ocal offers a comprehensive range of corrosion-resistant conduit systems, including PVC-coated conduit and fittings, conduit bodies, hazardous location fittings, and strut accessories. Their products are designed to provide superior corrosion protection, featuring a hot-dipped galvanizing process and UL listed Type 4X PVC-coated conduit bodies, ensuring durability in the most demanding environments.