ABB - Installation Products ST3/4-LG - PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 3/4 Inch/21 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Light Gray
ABB - Installation Products

ST3/4-LG

UPC: 704508008505


Documents & Media
Specification SheetManufacturer Product Website

Contact for Pricing

Overview

The ABB ST3/4-LG PVC Coated Liquitight Conduit Connector is a corrosion-resistant, liquidtight solution designed for 3/4-inch (21 metric) conduit systems in industrial, commercial, and utility applications. This straight connector features a durable steel fitting with a minimum 0.040-inch (40 mil) PVC coating bonded to the exterior, providing superior protection against moisture, chemicals, and environmental stressors. The light gray finish ensures a professional appearance while maintaining excellent weather resistance. Key specifications include a steel fitting body with standardized threading for compatibility with standard 3/4-inch conduit systems. The connector incorporates pressure-sealing sleeves to ensure a watertight connection, critical for applications requiring reliable electrical isolation and protection of enclosed conductors. The design meets UL 467 grounding and bonding standards, with a ground ring made from naval brass for enhanced corrosion resistance. Ideal for harsh environments such as manufacturing plants, chemical processing facilities, wastewater treatment centers, and outdoor installations, this connector delivers long-term performance in corrosive or high-moisture conditions. It is suitable for both new construction and retrofit projects, offering quick installation with standard tools. The ST3/4-LG is part of ABB’s Ocal® corrosion-resistant conduit systems, ensuring compatibility with genuine T&B Liquidtight Systems® fittings for consistent quality. Custom color options are available upon request, with standard offerings in dark gray, white, or light blue.
  • 3/4-inch (21 metric) steel fitting with 0.040-inch (40 mil) PVC coating for superior corrosion resistance
  • Light gray finish with pressure-sealing sleeves for watertight connections
  • Meets UL 467 grounding and bonding standards with naval brass ground ring
  • Compatible with standard 3/4-inch conduit systems and T&B Liquidtight Systems® fittings
  • Ideal for harsh environments including chemical plants, wastewater facilities, and outdoor installations

Specifications

Application
To positively bond conduit to box or enclosure
Color
Light Gray
Color
Gray
Environmental Conditions
Hazardous Locations
Finish
PVC Coated
Material
Steel
Material
Steel with PVC Coating
Series
Liquitight
Size
3/4 Inch/21mm
Size
3/4 Inch / 21 Metric
Special Features
Pressure-Sealing Sleeves Protect the Connection
Type
Liquidtight Conduit Fitting - Straight
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)
0.300 L
Package Weight (Metric)
0.136 kg
PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 2 Inch/53 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray

ST2-G

PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 2 Inch/53 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray
Connector, Liquid Tight, 45 Degree, US Steel, Size 3-1/2 Inch, Insulated Throat

458-SLTIUS

Connector, Liquid Tight, 45 Degree, US Steel, Size 3-1/2 Inch, Insulated Throat
PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 1/2 Inch/16 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Light Gray

ST1/2-LG

PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 1/2 Inch/16 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Light Gray
PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 4 Inch/103 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Light Blue

ST4-B

PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 4 Inch/103 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Light Blue
PVC Coated Liquitight Conduit Connector, 90 Degree, Pipe Size 1 Inch/27 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Light Gray

ST190-LG

PVC Coated Liquitight Conduit Connector, 90 Degree, Pipe Size 1 Inch/27 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Light Gray
PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 1-1/2 Inch/41 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, White

ST11/2-W

PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 1-1/2 Inch/41 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, White
PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 2 Inch/53 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, White

ST2-W

PVC Coated Liquitight Conduit Connector, Straight, Pipe Size 2 Inch/53 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, White
PVC Coated Liquitight Conduit Connector, 90 Degree, Pipe Size 1-1/2 Inch/41 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, White

ST11/290-W

PVC Coated Liquitight Conduit Connector, 90 Degree, Pipe Size 1-1/2 Inch/41 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, White

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.