NSI Industries 389-DC - Bushing, Insulated, Grounding, Zinc Die Cast, Size 3 1/2 Inch, 14-1/0 Lug
NSI Industries

389-DC

UPC: 781747093899


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Overview

The NSi Industries 389-DC Insulated Grounding Bushing is a zinc die-cast component engineered for secure electrical grounding in industrial and commercial applications. Designed for a 3 1/2-inch conduit size with a 14-1/0 lug connection, this bushing ensures reliable ground continuity while protecting against electrical hazards. Its insulated design features a 150°C-rated nylon surface (94V-0 flammability) to prevent abrasion during wire pulling and maintain safety in demanding environments. The integral grounding lug eliminates loose parts, reducing installation time and inventory needs. Compatible with both copper and aluminum ground wires, the 389-DC meets UL 514B and UL 467 standards, ensuring compliance with electrical codes. The zinc die-cast construction provides durability and corrosion resistance, making it ideal for power distribution systems, electrical panels, and grounding applications where reliability is critical. Trust NSi Industries for precision-engineered solutions that deliver long-term performance.
  • Zinc die-cast construction for durability and corrosion resistance
  • 3.5-inch conduit size with 14-1/0 lug connection
  • 150°C-rated nylon insulator (94V-0 flammability) for safety
  • Integral grounding lug eliminates loose parts and reduces installation time
  • Meets UL 514B and UL 467 standards for compliance

Specifications

Application
Used with locknut to terminate service conduit to cabinet. Lug provided for bonding jumper to neutral busbar. Grounding lug; aluminum alloy 6061-T6. Plastic metaliner prevents damage to wire insulation. Rated 150 degree C.
Color
Grey with Black Insulator
Finish
Ball burnish
Material
Zinc Die Cast
Size
3-1/2 IN
Special Features
Grounding Lug Wire Capacity #14 - #1/0
Standard
cULus
Temperature Rating
150?°C
Trade Size
3.5 in
Type
Bushing
Package Weight (Imperial)
0.478 L
Package Weight (Metric)
0.217 kg
Bushing, Insulated, Grounding, Zinc Die Cast, Size 3 1/2 Inch, 6-250 Lug

389-DC40

Bushing, Insulated, Grounding, Zinc Die Cast, Size 3 1/2 Inch, 6-250 Lug

Frequently Asked Questions

How is the 389-DC bushing typically packaged?

The standard package quantity for the 389-DC bushing is 25 units, and it is available in bulk.

What type of lug is included with the 389-DC bushing?

The 389-DC bushing includes a 14-1/0 lug for a bonding jumper to the neutral busbar.

What certifications does the 389-DC bushing have?

The 389-DC bushing is UL-514B and NEMA FB-1 compliant, and meets Federal Specification A-A-50553.

What is the trade size of the 389-DC bushing?

The trade size of the 389-DC bushing is 3-1/2 inches.

What are the dimensions of the 389-DC bushing?

Dimension A is 4-5/16 in, Dimension B is 13/16 in, and Dimension C is 3-3/8 in.

What is the purpose of the plastic metaliner in the bushing?

The plastic metaliner in the 389-DC bushing prevents damage to wire insulation.

What is the temperature rating for the 389-DC bushing?

The 389-DC bushing is rated for 150 degrees C.

What materials are used in the 389-DC bushing?

The bushing is made of Zinc Die Cast. The grounding lug is aluminum alloy 6061-T6 with a tin electro-plate finish.

What is the primary application of the 389-DC bushing?

The 389-DC bushing is used with a locknut to terminate service conduit to a cabinet. It also provides a lug for a bonding jumper to the neutral busbar.

What is the primary application of the 389-DC bushing?

The 389-DC bushing is used with a locknut to terminate service conduit to a cabinet. It also provides a lug for a bonding jumper to the neutral busbar.

Frequently Asked Questions about NSI Industries

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Tork products are typically installed by trained technicians who follow a comprehensive commissioning process. This includes verifying the work environment, conducting electrical installation checks, performing internal and external equipment inspections, powering on the system, and executing operational tests to ensure compatibility and reliability.

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What are the main product lines offered by Tork?

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What technical support does Tork offer?

Tork offers a comprehensive range of technical support services, including 24/7 customer support, on-site service management, and a technical hotline network. With three advanced technical support centers and over 8,000 hours of technical training conducted annually, Tork ensures certified expertise across 25+ languages to assist customers effectively. Their commitment to service is reflected in a 98% Service Level Agreement compliance rate, providing reliable support for all operational needs.

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