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NSI Industries TL-383 - Threadless Bushing, Insulated, Grounding, Malleable Iron, Size 1 Inch

NSI Industries TL-383 Threadless Bushing, Insulated, Grounding, Malleable Iron, Size 1 Inch

UPC: 781747013835


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Minimum Qty: 25

Multiplier: 25

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The NSI Industries TL-383 is a 1-inch threadless insulated grounding bushing designed for use on threadless rigid and IMC conduit systems, providing a secure grounding solution without the need for threading. Constructed from durable malleable iron, this bushing features a zinc-plated grounding lug and a tin electro-plate finish for enhanced corrosion resistance, making it suitable for demanding industrial electrical installations. Rated for operation at temperatures up to 150°C, the TL-383 includes a smooth, insulated throat liner that protects ungrounded conductors at raceway, pull box, and junction box entrances while significantly reducing wire pulling effort by up to 50%. Its locknut-type base design ensures improved bonding and resistance to vibration-induced loosening, while high ribs on the bushing allow for both finger and wrench tightening for ease of installation. The bushing measures 1.625 inches in dimension A and 0.75 inches in dimension B, conforming to NEMA FB-1 and Federal Specification A-A-50553 standards. With a patented design and cULus listing, the TL-383 delivers reliable electrical safety and efficient wire management in conduit systems, meeting the rigorous demands of modern electrical infrastructure.
  • 1-inch threadless design for rigid and IMC conduit systems
  • Malleable iron construction with zinc-plated grounding lug and tin electro-plate finish
  • 150°C temperature rating with smooth insulated throat liner
  • Locknut-type base for improved bonding and vibration resistance
  • High ribs for finger or wrench tightening; reduces wire pulling effort by up to 50%

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 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
Type
Bushing
Package Weight (Imperial)
0.151 L
Package Weight (Metric)
0.068 kg
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Frequently Asked Questions

What is the standard package quantity for TL-383?

The standard package quantity for the TL-383 is 250 units.

What is the TL-383 product description?

The TL-383 is a 1-inch threadless, insulated, grounding bushing made of malleable iron.

What is the application of the TL-383 bushing?

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

What is the temperature rating for the TL-383?

The TL-383 bushing is rated for 150 degrees C.

What material is the TL-383 bushing made from?

The TL-383 bushing is made from malleable iron.

What is the finish of the TL-383 bushing?

The TL-383 bushing has a zinc-plated finish.

What material is the grounding lug made of?

The grounding lug of the TL-383 is made of tin electro-plate.

What are the certifications for the TL-383?

The TL-383 is cULus listed and patented. It meets Federal Specification A-A-50553, NEMA Standard FB-1, and UL Standard UL-514B.

What is the trade size of the TL-383?

The trade size of the TL-383 is 1 inch.

What are the dimensions of the TL-383?

Dimension A is 1.625 inches and Dimension B is 0.75 inches.

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