Authorized NSI Industries Distributor
NSI Industries TWB-55 - Bushing, Insulating, Polyethylene, Trade Size 1 1/2 Inch
NSI Industries

TWB-55

UPC: 781747400550


Documents & Media
Specification SheetVideo ClipWarrantyConflict Minerals Report

Contact for Pricing

Overview

The NSI Industries TWB-55 is a polyethylene insulating bushing designed for 1 1/2 inch trade size applications. Constructed from high-density polyethylene (HDPE), this bushing provides reliable electrical insulation and mechanical protection in conduit systems, junction boxes, and panel boards. Its 1 1/2 inch trade size ensures compatibility with standard electrical fittings, including EMT, IMC, and rigid conduit. The HDPE material offers excellent chemical resistance to oils, solvents, and moisture, making it ideal for industrial and utility environments. The TWB series is engineered for commercial, industrial, and utility installations where electrical insulation and mechanical reinforcement are critical. This bushing protects wires and cables from abrasion, sharp edges, and moisture ingress, extending the lifespan of electrical systems. NSI Industries, a trusted US-based manufacturer, ensures consistent quality and performance with the TWB-55. Common applications include electrical panels, motor control centers, and outdoor installations requiring UL-rated insulation.
  • 1.5" trade size compatible with standard electrical fittings (EMT, IMC, rigid conduit)
  • High-density polyethylene (HDPE) material for chemical and moisture resistance
  • Provides electrical insulation and mechanical protection in conduit systems
  • Ideal for commercial, industrial, and utility installations
  • NSI Industries TWB series, manufactured in the US

Specifications

Application
Bushing insulates nonmetallic low voltage cabling (telephone, computer, video, data cables) sharp edges in EMT.
Bushing Type
Insulating
Color
White
Finish
No Finish
Material
Plastic
Material
Polyethylene
Series
TWB
Size
1-1/2 IN
Special Features
May be used for single or multiple voice, video, or data cables. Complies with NEC Article 300-15(c).
Temperature Rating
90?°C
Trade Size
1.5 in
Type
Bushing
Package Weight (Imperial)
0.014 L
Package Weight (Metric)
0.006 kg
Bushing, Insulating, Polyethylene, Trade Size 3 Inch

TWB-58

Bushing, Insulating, Polyethylene, Trade Size 3 Inch
Bushing, Insulating, Polyethylene, Trade Size 2 1/2 Inch

TWB-57

Bushing, Insulating, Polyethylene, Trade Size 2 1/2 Inch
Bushing, Insulating, Polyethylene, Trade Size 3 1/2 Inch

TWB-59

Bushing, Insulating, Polyethylene, Trade Size 3 1/2 Inch
Bushing, Plastic - 150 Degrees C, Size 4 Inch

330-B

Bushing, Plastic - 150 Degrees C, Size 4 Inch
Bushing, Plastic - 150 Degrees C, Size 2 1/2 Inch

327-B

Bushing, Plastic - 150 Degrees C, Size 2 1/2 Inch
Bushing, Insulating, Polyethylene, Trade Size 4 Inch

TWB-60

Bushing, Insulating, Polyethylene, Trade Size 4 Inch
Bushing, Plastic - 150 Degrees C, Size 3 Inch

328-B

Bushing, Plastic - 150 Degrees C, Size 3 Inch
Bushing, Insulated, Grounding, Zinc Die Cast, Size 2 Inch, 14-4 Lug

386-DC14

Bushing, Insulated, Grounding, Zinc Die Cast, Size 2 Inch, 14-4 Lug

Frequently Asked Questions

What is the material of the TWB-55 bushing?

The TWB-55 bushing is made of plastic, specifically polyethylene.

What is the trade size of the TWB-55 bushing?

The trade size of the TWB-55 bushing is 1-1/2 inches.

What is the purpose of the TWB-55 bushing?

The TWB-55 bushing is used to protect nonmetallic low voltage cabling from sharp edges in EMT.

How many units are in a standard package?

The standard package quantity for the TWB-55 is 100 units.

Can the TWB-55 bushing be used for multiple cables?

Yes, the TWB-55 bushing may be used for single or multiple voice, video, or data cables.

How should the TWB-55 bushing be installed?

Place the bushing over the end of the RMT and tap lightly onto the tubing.

Frequently Asked Questions about NSI Industries

How are Tork products typically installed?

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.

What environmental ratings do Tork products have?

Tork products are designed to meet various environmental ratings, including NEMA Type 4X and Type 6, which provide protection against corrosion, windblown dust, rain, and occasional temporary submersion. These ratings ensure that Tork products can withstand harsh industrial environments while maintaining operational integrity.

What communication protocols do Tork products support?

Tork products support a comprehensive range of communication protocols, including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, and Modbus RTU integrated as standard. These protocols facilitate flexible network integration and high-performance communication across various industrial automation systems.

What are the key features of Tork products?

Tork products are designed with advanced features that enhance efficiency and reliability in industrial applications. Key features include integrated harmonics and EMC design for improved power quality, removable terminals for quick installation, and USB ports for easy troubleshooting. Additionally, Tork solutions emphasize user-friendly setup with application wizards and memory modules for convenient parameter management.

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.

What industries and applications are Tork products used for?

Tork products are utilized across a variety of industries, including food processing, healthcare, hospitality, and manufacturing. They are designed for applications such as hand hygiene, surface cleaning, and dispensing solutions, ensuring efficiency and compliance in environments that require high standards of cleanliness and safety.

What certifications and standards do Tork products comply with?

Tork products comply with UL and cUL certifications, ensuring they meet rigorous safety and performance standards. Additionally, many models are designed to meet NEMA enclosure ratings, providing protection against environmental factors.

How are Remke products typically installed?

Remke products are typically installed through a systematic process that includes site audits to verify proper wiring, followed by remote or on-site commissioning. This commissioning involves installation verification, programming, and communication testing to ensure the system operates reliably and meets design specifications.

What accessories are available for Remke products?

Remke offers a wide range of accessories for their products, including panel mounting kits, fuse holders for voltage inputs, ferrites for communication modules, and current transformers. These accessories enhance the functionality and protection of Remke's industrial automation solutions, ensuring reliable performance in various applications.