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ABB - Installation Products STTB7-G - PVC Coated Bulkhead Fitting with Thermoplastic Insulated Throat, Pipe Size 2-1/2 Inch/63 Metric, Thread 2-1/2 - 8, Height 2.28 Inch, Diameter 3.75 Inch, Across Flats 3.13 Inch, Nitrile Rubber (Buna-N) Sealing Ring, Gray

ABB Installation Products STTB7-G PVC Coated Bulkhead Fitting with Thermoplastic Insulated Throat, Pipe Size 2-1/2 Inch/63…

UPC: 704508017118

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Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The ABB STTB7-G PVC Coated Bulkhead Fitting is a zinc body fitting with a thermoplastic insulated throat and nitrile rubber (Buna-N) sealing ring, designed for 2-1/2 inch pipe sizes with a 2-1/2 - 8 thread. This bulkhead fitting features a nominal 0.040" (40 mil) PVC coating bonded to the exterior for enhanced corrosion resistance in harsh industrial environments. The gray PVC coating provides a durable, professional finish that resists environmental degradation, making it ideal for outdoor and corrosive applications. The thermoplastic insulated throat ensures electrical isolation and reduces wire pulling effort by up to 50%, meeting NEMA sealing requirements for NEMA 3R, 4, and 13 enclosures. The nitrile rubber sealing ring delivers a tight, leak-proof seal, preventing moisture and contaminants from entering the system. With dimensions of 2.28 inches in height, 3.75 inches in diameter, and 3.13 inches across flats, the STTB7-G is engineered for easy installation and compatibility with standard tools. The locknut-type base improves bonding and resists loosening under vibration, ensuring long-term reliability. Manufactured by ABB Installation Products in the US, the STTB7-G is suitable for electrical, HVAC, and plumbing applications where secure, insulated connections are critical. Its compliance with stringent industry standards, including UL and CSA certifications, makes it a trusted choice for both new construction and retrofit projects. The fitting’s design and materials ensure durability, corrosion resistance, and electrical safety in demanding industrial settings.
  • Zinc body with 0.040" (40 mil) PVC coating for superior corrosion resistance
  • Thermoplastic insulated throat reduces wire pulling effort by up to 50%
  • Nitrile rubber (Buna-N) sealing ring ensures a tight, leak-proof connection
  • Designed for 2-1/2" pipe size with 2-1/2 - 8 thread for compatibility
  • Meets NEMA 3R, 4, and 13 sealing requirements; UL and CSA certified

Specifications

Application
To positively bond conduit to box or enclosure
Color
Gray
Material
PVC Coated Zinc
Material
PVC Coated, Thermoplastic, Nitrile Rubber (Buna-N)
Size
2-1/2 Inch/63mm
Size
2-1/2 Inch / 63 Metric
Type
Bulkhead Fitting
Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
3.800 L
Package Weight (Metric)
1.724 kg
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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.

What environmental ratings do Thomas and Betts products have?

Thomas and Betts products feature robust environmental ratings, including NEMA Type 1, 2, 3, 4, 4X, 12, and 13 certifications, as well as IEC 60529 IP66 protection. These ratings ensure that their products are designed to withstand harsh industrial environments, with capabilities to resist dust, water, and corrosion, and operate effectively in a wide temperature range.

What communication protocols do Thomas and Betts products support?

Thomas and Betts products support a wide range of industrial communication protocols, including Ethernet, DeviceNet, PROFIBUS, Modbus, CANopen, and others. This extensive compatibility ensures seamless integration and reliable communication across various industrial automation systems, catering to diverse application needs.

What are the key features of Thomas and Betts products?

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.

What are the main product lines offered by Thomas and Betts?

Thomas and Betts offers a comprehensive range of product lines including electrical connectors, cable management systems, grounding and bonding solutions, and industrial automation components. Their products are designed for durability and reliability in demanding industrial environments, ensuring optimal performance and safety across various applications.

What technical support does Thomas and Betts offer?

Thomas and Betts offers comprehensive technical support, including access to field application engineers for onsite training and installation assistance. Their technical support staff is available to address inquiries related to product specifications and installation practices, ensuring optimal performance and safety of electrical systems. Additionally, they provide a variety of training programs to enhance the knowledge and skills of users in the field.

What industries and applications are Thomas and Betts products used for?

Thomas and Betts products are utilized across various industries including electrical construction, industrial automation, telecommunications, and utilities. Their extensive range of cord and cable fittings, electrical boxes, and metal framing systems are designed for applications that require durability and reliability in harsh environments, ensuring optimal performance in both permanent and temporary installations.

What certifications and standards do Thomas and Betts products comply with?

Thomas and Betts products comply with critical international certifications including UL (Underwriters Laboratories), CSA (Canadian Standards Association), and CE (European Community). Our products are designed to meet rigorous industrial standards such as NEMA enclosure ratings and IEC 60529 IP ratings, ensuring safety and reliability across various industrial applications.

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.