NSI Industries TL-381 - Threadless Bushing, Insulated, Grounding, Malleable Iron, Size 1/2 Inch
NSI Industries

TL-381

UPC: 781747013811


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Minimum Qty: 50

Multiplier: 50

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Overview

NSI Industries TL-381 Threadless Insulated Grounding Bushing is a malleable iron bushing designed for 1/2 inch conduit, providing critical protection for ungrounded conductors at raceway entrances. Engineered to meet NEC paragraph 373-6C requirements, the TL-381 features a smoothly rounded insulating nylon liner that prevents conductor abrasion during wire pulling while ensuring code compliance. The integrated grounding lug eliminates loose parts and simplifies installation in tight spaces, reducing labor time by eliminating threading and reattachment steps. Rated for 105°C operation with a UL File No. E-23018 and CSA File No. 2884 certification, the TL-381 supports wire ranges from 14 AWG to 4/0 AWG for both copper and aluminum conductors. The zinc-plated malleable iron construction delivers durable performance in industrial environments, while the ribbed design enables easy finger-tightening during installation. Ideal for rigid and intermediate metal conduit systems, this bushing combines grounding functionality with conductor protection in a single, reliable component.
  • Malleable iron construction for durability in industrial environments
  • Threadless design installs in seconds without threading or loose parts
  • Nylon insulated throat reduces wire pulling effort by up to 50%
  • Integrated grounding lug eliminates separate components and simplifies installation
  • UL File No. E-23018 and CSA File No. 2884 certified for compliance
  • Supports wire ranges from 14 AWG to 4/0 AWG (CU/AL)
  • Zinc-plated finish with ribbed design for easy finger-tightening
  • Meets NEC paragraph 373-6C requirements for conductor protection

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
Size
1/2 IN
Special Features
Cable Size #4-14 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
Trade Size
0.5 in
Type
Bushing
Package Weight (Imperial)
0.074 L
Package Weight (Metric)
0.034 kg
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Frequently Asked Questions

What is the standard package quantity for TL-381?

The standard package quantity for the TL-381 is 500 units.

What certifications does the TL-381 have?

The TL-381 is cULus listed and complies with UL-514B and NEMA Standard FB-1. It also meets Federal Specification A-A-50553.

What is the trade size of the TL-381?

The trade size of the TL-381 is 1/2 inch.

What are the dimensions of the TL-381 bushing?

Dimension A is 1.0625 in and Dimension B is 0.6875 in.

What is the finish of the TL-381 bushing?

The TL-381 bushing has a zinc-plated finish. Its grounding lug is tin electro-plated.

What material is the TL-381 bushing made from?

The TL-381 bushing is made from malleable iron.

What is the maximum temperature rating for TL-381?

The TL-381 bushing is rated for a maximum temperature of 150 Degree C.

What is the application for the TL-381 bushing?

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

What is the TL-381 product description?

The TL-381 is a 1/2 inch threadless, insulated, grounding bushing made of malleable iron.

What is the TL-381 product description?

The TL-381 is a 1/2 inch threadless, insulated, grounding bushing made of malleable iron.

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