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NSI Industries TWB-56 - Bushing, Insulating, Polyethylene, Trade Size 2 Inch
NSI Industries

TWB-56

UPC: 781747400567


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Overview

NSI Industries TWB-56 Polyethylene Insulating Bushing (SKU: TWB-56) provides critical electrical installation protection for professional contractors and industrial applications. Engineered with high-quality polyethylene, this bushing prevents wire damage and ensures secure cable management in electrical conduit systems. Designed for reliable performance, these insulating bushings create a smooth, protective barrier that reduces cable wear and minimizes potential electrical hazards during installation and long-term use. The TWB-56 meets National Electric Code (NEC) paragraph 373-6C requirements for protection of ungrounded conductors by providing smoothly rounded insulating surfaces at conduit entrances. This design reduces wire pulling effort by up to 50% compared to non-insulated fittings. The bushing features a high-rib design for easy finger or wrench tightening and a locknut-type base that improves bonding while resisting loosening under vibration conditions. Manufactured by NSI Industries, this Trade Size 2 inch bushing is constructed from polyethylene with a temperature rating of 105°C. It is UL Listed and CSA Certified (UL File No. E-23018, CSA File No. 2884) for electrical safety compliance. The blue insulating liner in the throat is trade-marked for easy identification and meets stringent electrical safety standards.
  • Polyethylene construction with 105°C temperature rating
  • Meets NEC 373-6C requirements for conductor protection
  • Reduces wire pulling effort by up to 50%
  • UL Listed (File No. E-23018) and CSA Certified (File No. 2884)
  • High-rib design for easy installation and locknut-type base for vibration resistance

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
Size
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
2 in
Type
Bushing
Package Weight (Imperial)
0.022 L
Package Weight (Metric)
0.010 kg
Bushing, Insulating, Polyethylene, Trade Size 4 Inch

TWB-60

Bushing, Insulating, Polyethylene, Trade Size 4 Inch
Bushing, Insulating, Polyethylene, Trade Size 1 1/2 Inch

TWB-55

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

TWB-58

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

327-B

Bushing, Plastic - 150 Degrees C, Size 2 1/2 Inch
Bushing, Plastic - 150 Degrees C, Size 3 Inch

328-B

Bushing, Plastic - 150 Degrees C, Size 3 Inch

Frequently Asked Questions

What is the trade size of the TWB-56 bushing?

The trade size of the TWB-56 bushing is 2 inches.

What is the catalog ID for the TWB-56?

The catalog ID for the TWB-56 is TWB-56.

What is the UPC number for the TWB-56?

The UPC number for the TWB-56 is 781747400567.

What is the material of the TWB-56 bushing?

The TWB-56 bushing is made of plastic, specifically polyethylene.

What is the purpose of the TWB-56 bushing?

The TWB-56 bushing is used to protect nonmetallic low voltage cabling from sharp edges when installed in EMT.

What are the dimensions of the TWB-56 bushing?

The dimensions are: A = 1.870 inches, B = 2.380 inches, C = 0.625 inches.

How many units are in a standard package?

The standard package quantity for the TWB-56 is 50 units.

Can the TWB-56 bushing be used for multiple cables?

Yes, the TWB-56 bushing may be used for single or multiple voice, video, or data cables.

How should the TWB-56 bushing be installed?

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

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