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Overview
- 3 Inch (78 Metric) straight Liquitight conduit connector
- Minimum 0.040 Inch (40 mil) PVC coating for superior corrosion resistance
- Steel fitting construction for durability
- Integrated grounding ring for reliable electrical grounding (UL 467 compliant)
- Dark gray finish for professional appearance and UV resistance
Specifications
Application | To positively bond conduit to box or enclosure |
Color | Dark Gray |
Color | Gray |
Environmental Conditions | Hazardous Locations |
Finish | PVC Coated |
Material | Steel |
Material | Steel with PVC Coating |
NEMA Rating | 4X |
Series | ST |
Size | 3 Inch/78mm |
Size | 3 Inch (78 Metric) |
Special Features | Pressure-Sealing Sleeves Protect the Connection |
Standard | UL, CSA |
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) | 5.950 L |
Package Weight (Metric) | 2.699 kg |

ST3/490GR-G
PVC Coated Liquitight Conduit Connector with Grounding Ring, 90 Degree, Pipe Size 3/4 Inch/21 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray
ST4GR-G
PVC Coated Liquitight Conduit Connector with Grounding Ring, Straight, Pipe Size 4 Inch/103 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray
ST145GR-G
PVC Coated Liquitight Conduit Connector with Grounding Ring, 45 Degree, Pipe Size 1 Inch/27 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray
ST21/245GR-G
PVC Coated Liquitight Conduit Connector with Grounding Ring, 45 Degree, Pipe Size 2-1/2 Inch/63 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray
ST3/445GR-G
PVC Coated Liquitight Conduit Connector with Grounding Ring, 45 Degree, Pipe Size 3/4 Inch/21 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray
ST345GR-G
PVC Coated Liquitight Conduit Connector with Grounding Ring, 45 Degree, Pipe Size 3 Inch/78 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray
ST245GR-G
PVC Coated Liquitight Conduit Connector with Grounding Ring, 45 Degree, Pipe Size 2 Inch/53 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark GrayHow to Install the ST3GR-G Controller
This guide provides step-by-step instructions for installing and wiring the ST3GR-G Controller, ensuring proper setup and configuration.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors
- Prepare the conduit
Properly cut the flexible conduit with a clean, square end cut using a sharp hacksaw or power band saw. Ensure the cut is smooth to avoid damage during installation.
- Assemble the grounding components
Remove the round shape support from the PVC coating on the gland nut. Slide the gland and nylon sealing ring onto the conduit, ensuring the open side of the lug on the ground ring is facing the gland nut.
- Install the grounding cone
Thread the ground cone into the conduit and slide the body onto the cone. Then, slide the gland nut and sealing ring down to the body and tighten the gland according to the torque chart provided.
- Connect the grounding conductor
Install the grounding conductor in the lug and tighten the lug screw according to the torque table. Ensure all connections are secure to prevent any electrical issues.
- Verify the installation
Use a multimeter to check all connections for continuity and proper grounding. Ensure that all circuits are de-energized before performing this verification.
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.
