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NSI Industries 231-I - Connector, Set Screw, Steel, Insulated Throat, Size 3/4 Inch
NSI Industries

231-I

UPC: 781747102317


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Minimum Qty: 25

Multiplier: 25

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Overview

The NSi Industries 231-I is a 3/4-inch steel set screw connector designed for secure industrial connections. This connector features an insulated throat, reducing wire pulling effort by as much as 50% and preventing electrical conductivity. Manufactured from hardened steel, it ensures positive holding strength and ground when the captive hex head set screws are tightened onto conduit. The 231-I is ideal for applications requiring a vibration-resistant fit, such as in mechanical assemblies, electrical enclosures, and industrial machinery. It is listed and certified by U.L. (File No: E-23018) and CSA (LR-2884, LR-4484), conforming to U.L. 514B, CSA C22.2 No. 18, NFPA 70-1999 (ANSI), NEMA FB1, Federal Specification W-F-408, and Federal Standard H-28 (Threads). The steel construction offers durability for demanding environments. This connector is approved for concrete-tight applications.
  • 3/4-inch steel set screw connector
  • Insulated throat for reduced wire pulling effort
  • Hardened steel construction for durability
  • Captive hex head set screws for secure connections
  • Approved for concrete-tight applications

Specifications

Application
Used to secure steel EMT to box or enclosure. Concrete-tight when taped. Plastic insulator rated 105 degree C.
Connector Type
Set Screw
Finish
Zinc Electroplated
Insulation
Insulated Throat
Material Quality
Steel
Size
3/4 IN
Special Features
Furnished with Tri-Drive slot/Phillips/Robertson head screws
Standard
cULus
Temperature Rating, Maximum
221 F
Temperature Rating, Maximum
105 C
Temperature Rating, Minimum
221 F
Temperature Rating, Minimum
105 C
Trade Size
3/4 in.
Type
Connector
Package Weight (Imperial)
0.120 L
Package Weight (Metric)
0.054 kg
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Frequently Asked Questions

How many connectors are in a standard package?

The standard package quantity for the 231-I connector is 250 units.

What are the dimensions of the 231-I connector?

The dimensions are: A is 1-1/2 inches, B is 1-1/4 inches, and C is 1 inch.

What certifications does the 231-I connector have?

The 231-I connector meets Federal Specification A-A-50553, NEMA Standard FB-1, and UL Standard UL-514B (UL File E24001).

What is the trade size of the 231-I connector?

The trade size of the 231-I connector is 3/4 inch.

What is the temperature rating of the plastic insulator?

The plastic insulator in the 231-I connector is rated for 105 degrees C.

What material is the 231-I connector made from?

The 231-I connector is made from steel. It has a zinc electro-plate finish.

What is the primary use of the 231-I connector?

The 231-I connector is used to secure steel EMT to a box or enclosure. It is concrete-tight when taped.

What are the dimensions of the 231-I connector?

The dimensions are: A is 1-1/2 inches, B is 1-1/4 inches, and C is 1 inch.

How many connectors are in a standard package?

The standard package quantity for the 231-I connector is 250 units.

What certifications does the 231-I connector have?

The 231-I connector meets Federal Specification A-A-50553, NEMA Standard FB-1, and UL Standard UL-514B (UL File E24001).

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