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NSI Industries TL-389 - Threadless Bushing, Insulated, Grounding, Malleable Iron, Size 3-1/2 Inch, 6-3/0 Lug
NSI Industries

TL-389

UPC: 781747013897


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Overview

The NSI Industries TL-389 is a 3-1/2 inch threadless insulated grounding bushing constructed from durable malleable iron. It features an integral cast-on grounding lug for superior ground continuity and is designed for rigid and IMC conduits. The bushing has a nylon insulator rated for 150°C (302°F) and a 94V-0 flammability rating. Key specifications include: - Conduit size: 3-1/2 inch - Lug size: 6-3/0 - Material: Malleable iron - Insulator rating: 150°C (302°F), 94V-0 flammability - Wire range: #14 AWG to 4/0 AWG CU/AL - The TL-389 is UL-listed and CSA-certified, meeting NEC 373-6C requirements. Its design reduces inventory needs by consolidating multiple lug capacities into one unit. The TL-389 is suitable for use with a wide range of wire sizes, from #14 AWG to 4/0 AWG, for both copper and aluminum wires, providing versatility in various electrical applications. By meeting the necessary safety standards and offering a broad wire range compatibility, the TL-389 provides a reliable and efficient solution for electrical grounding needs.
  • Threadless design for easy installation
  • Integral cast-on grounding lug for superior ground continuity
  • Nylon insulator rated for 150°C (302°F) and 94V-0 flammability
  • Compatible with #14 AWG to 4/0 AWG CU/AL wires
  • UL-listed and CSA-certified, meeting NEC 373-6C requirements

Specifications

Application
For use on threadless rigid and IMC conduit where an insulated grounding bushing is required. Rated 150 Degree C. cULus listed. Patented
Color
Grey with Black Insulator
Finish
Zinc Plated
Material
Malleable Iron
Mounting Type
Cone-point mounting screw
Size
3-1/2 IN
Special Features
Cable Size #3/0 - 6 AWG Conductors
Standard
cULus
Temperature Rating
150?°C
Temperature Rating, Maximum
302 F
Temperature Rating, Maximum
150 C
Temperature Rating, Minimum
302 F
Temperature Rating, Minimum
150 C
Type
Bushing
Package Weight (Imperial)
0.881 L
Package Weight (Metric)
0.400 kg
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Frequently Asked Questions

What is the standard package quantity for TL-389?

The standard package quantity for the TL-389 is 25 units.

What are the key dimensions of the TL-389 bushing?

Dimension A is 4.375 in, Dimension B is 1.0625 in, and the trade size is 3-1/2 inches.

What certifications does the TL-389 bushing have?

The TL-389 is cULus listed and complies with Federal Specification A-A-50553 and NEMA Standard FB-1. It is also patented.

What is the maximum temperature rating for the TL-389?

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

What is the finish of the TL-389 bushing and its lug?

The bushing has a zinc plated finish, and the grounding lug is tin electro-plate.

What material is the TL-389 bushing made from?

The TL-389 bushing is made from malleable iron.

What is the application for the TL-389 bushing?

It is used on threadless rigid and IMC conduit where an insulated grounding bushing is required.

What is the TL-389 product description?

The TL-389 is a threadless, insulated grounding bushing made of malleable iron, size 3-1/2 inches, with a 14-1/0 lug.

What is the application for the TL-389 bushing?

It is used on threadless rigid and IMC conduit where an insulated grounding bushing is required.

What are the key dimensions of the TL-389 bushing?

Dimension A is 4.375 in, Dimension B is 1.0625 in, and the trade size is 3-1/2 inches.

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