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

381

UPC: 781747003812


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Minimum Qty: 50

Multiplier: 50

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Overview

The NSi Industries 381 is a 1/2-inch insulated grounding bushing constructed from durable malleable iron, meeting National Electric Code (NEC) requirements for protecting ungrounded conductors at raceway entrances, pull boxes, and junction boxes. Designed for electrical installations, this bushing features a smoothly rounded insulating surface that prevents wire damage and reduces pulling effort during installation. Its locknut-type base enhances bonding and resists loosening from vibration, ensuring secure connections. Manufactured by NSi Industries, the 381 is engineered for applications requiring reliable grounding and wire protection in industrial, commercial, and residential electrical systems. The malleable iron construction provides exceptional strength and wear resistance, making it suitable for demanding environments. With a temperature rating of 105°C, this bushing maintains performance under high-heat conditions. It is important to note that the NSi Industries 381 is not U.L. Listed or CSA Certified, so compliance with local codes and standards should be verified before installation.
  • 1/2 Inch size for conduit and raceway entrances
  • Constructed from durable Malleable Iron
  • Insulated throat protects conductors
  • Meets NEC requirements for conductor protection
  • Locknut-type base for secure bonding

Specifications

Application
Used with locknut to terminate service conduit to cabinet. Lug provided for bonding jumper to neutral busbar. Grounding lug: aluminum allog 6061-T6. Plastic metaliner prevents damage to wire insulation. 1/2" thru 4" rated 150 degree C, 5" and 6" rated 105 degree C.
Color
Grey with Black Insulator
Finish
Zinc Electroplated
Material
Malleable Iron
Size
1/2 IN
Special Features
Grounding Lug Wire Capacity #14 - #4
Standard
cULus
Temperature Rating
150?°C
Trade Size
0.5 in
Type
Bushing
Package Weight (Imperial)
0.072 L
Package Weight (Metric)
0.033 kg
Bushing, Insulated, Grounding, Malleable Iron, Size 1 Inch

383

Bushing, Insulated, Grounding, Malleable Iron, Size 1 Inch

Frequently Asked Questions

What is the standard package quantity for this item?

The standard package quantity for this item is 500 units.

What certifications and codes does this product meet?

It meets Federal Specification A-A-50553, NEMA Standard FB-1, and UL Standard UL-514B (UL File E20412).

What are the key dimensions of the product?

Dimension A is 1-1/16 inches, Dimension B is 3/8 inches, and Dimension C is 5/8 inches.

What is the trade size of this bushing?

The trade size of this bushing is 1/2 inch.

What are the temperature ratings for different sizes?

Sizes 1/2 inch through 4 inches are rated for 150 degrees C. Sizes 5 inches and 6 inches are rated for 105 degrees C.

What is the purpose of the plastic metaliner?

The plastic metaliner is included to prevent damage to wire insulation.

What is the finish of the product and grounding lug?

The product has a zinc electro-plate finish. The grounding lug has a tin electro-plate finish.

What materials are used in this product?

The product is made from Malleable Iron. The grounding lug is made from aluminum alloy 6061-T6.

What is the primary application of this product?

This product is used with a locknut to terminate service conduit to a cabinet. It includes a lug for a bonding jumper to the neutral busbar.

What is the primary application of this product?

This product is used with a locknut to terminate service conduit to a cabinet. It includes 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?

Tork offers a diverse range of products primarily focused on industrial automation, including TORK® Photocontrols, lighting controls, and various electrical components such as enclosures, occupancy sensors, and grounding solutions. These products are designed to enhance efficiency and reliability in commercial and industrial applications.

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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