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ABB - Installation Products ST390GR-G - PVC Coated Liquitight Conduit Connector with Grounding Ring, 90 Degree, Pipe Size 3 Inch/78 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray

ABB Installation Products ST390GR-G PVC Coated Liquitight Conduit Connector with Grounding Ring, 90 Degree, Pipe Size 3…

UPC: 704508034405

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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 ST390GR-G is a robust 90-degree PVC-coated Liquitight conduit connector designed for demanding industrial electrical installations. This connector, with a 3-inch (78 Metric) pipe size, is engineered for superior corrosion resistance and protection in harsh environments. The exterior features a minimum 0.040-inch (40 mil) thick PVC coating, ensuring long-lasting durability and integrity. Constructed from high-quality steel, the ST390GR-G provides exceptional structural strength and reliability. A key feature is the integrated grounding ring, which guarantees reliable electrical continuity and enhances safety in critical applications. Its dark gray finish offers a professional aesthetic while blending seamlessly with industrial infrastructure. This connector is ideal for ensuring leak-proof performance and secure connections in electrical, HVAC, and plumbing systems where environmental resilience and system integrity are paramount. The 90-degree configuration allows for efficient conduit routing in confined spaces. Manufactured by ABB Installation Products, the ST390GR-G meets stringent quality standards, delivering a dependable solution for both new construction and retrofit projects. It is compatible with Liquitight conduit systems, offering a secure and efficient connection for electrical conduits in commercial, industrial, and utility settings, providing a reliable, high-performance connection that stands up to the rigors of industrial use. Applications include protecting sensitive equipment and maintaining system integrity in manufacturing, processing, and industrial control environments.
  • 3 Inch (78 Metric) Pipe Size for robust conduit connections.
  • 90-Degree Elbow configuration for efficient space utilization.
  • Minimum 0.040 Inch (40 mil) PVC Coating for superior corrosion resistance.
  • Integrated Grounding Ring ensures reliable electrical continuity and safety.
  • Durable Steel Fitting construction for long-lasting performance in industrial environments.

Specifications

Application
To positively bond conduit to box or enclosure
Color
Dark Gray
Color
Gray
Environmental Conditions
Hazardous Locations
Finish
PVC Coated
Material
Steel
NEMA Rating
4X
Size
3 Inch/78mm
Special Features
Pressure-Sealing Sleeves Protect the Connection
Standard
UL, CSA
Type
Liquidtight Conduit Fitting - 90 Degree
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)
14.610 L
Package Weight (Metric)
6.627 kg
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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
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458-SLTIUS

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ST290GR-G

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ST490GR-G

PVC Coated Liquitight Conduit Connector with Grounding Ring, 90 Degree, Pipe Size 4 Inch/103 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray
PVC Coated Liquitight Conduit Connector with Grounding Ring, 90 Degree, Pipe Size 1-1/4 Inch/35 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray

ST11/490GR-G

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NKNZ-M257/P4

Straight Connector with Strain Relief, Halogenfree Polyamide 6, Nickel-Plated Brass Thread, Thread Size M25x1.5, Conduit Size NW 17, Clamping Range 7.0 - 10.5k, IP68 and IP69 Certified, Black
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NKNZ-M253/P6

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ST21/290GR-G

PVC Coated Liquitight Conduit Connector with Grounding Ring, 90 Degree, Pipe Size 2-1/2 Inch/63 Metric, Minimum .040 Inch (40 mil) PVC Coating on Exterior, Steel Fitting, Dark Gray

How to Install the ST390GR-G Grounding Connector

This guide provides step-by-step instructions for installing the ST390GR-G grounding connector, ensuring a secure and compliant connection.

Estimated time: 30m

Tools needed:

Screwdriver, Wire strippers, Torque wrench

Supplies needed:

Grounding conductor, Gland nut, Nylon sealing ring, Ground cone

  1. Prepare the conduit

    Cut the flexible conduit with a clean, square end using a sharp hacksaw or a power band saw. Ensure the cut is clean to facilitate proper installation.

  2. Assemble the grounding connector

    Remove the round shape support from the PVC coating on the gland nut. Slide the gland nut, nylon sealing ring, and ground cone onto the conduit in that order.

  3. Install the grounding connector

    Thread the ground cone into the conduit and slide the body onto the cone. Tighten the gland nut according to the torque specifications provided in the torque table.

  4. Connect the grounding conductor

    Insert the grounding conductor into the lug and tighten the lug screw according to the torque table to ensure a secure connection.

  5. Verify the installation

    Check that all connections are secure and that the open side of the lug on the ground ring is facing the gland nut. Ensure compliance with NEC requirements.

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.