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NSI Industries 3511-I - 6" Malleable Iron Set Screw Connector with Insulated Throat
NSI Industries

3511-I

UPC: 781747245113


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Overview

The NSi Industries 3511-I (SKU: 3511-I) is a 6" malleable iron set screw connector featuring an insulated nylon throat for enhanced safety and performance in industrial conduit systems. Designed for threadless rigid metal conduit (RMC) and intermediate metal conduit (IMC), this connector eliminates the need for conduit threading while ensuring a concrete-tight, vibration-resistant connection. The hardened hex head cup point set screw provides positive holding strength and ground continuity, capable of carrying ground fault currents up to 20,000 amps RMS. The nylon insulated throat reduces wire pulling effort by up to 50%, prevents insulation thinning, and eliminates first thread damage, meeting UL 514B, CSA C22.2 No. 18, and NFPA 70-1999 standards. Constructed from malleable iron with a standard electro-zinc plated and chromate-coated finish, the 3511-I is UL listed (File No: E-23018) and CSA certified (LR-2884, LR-4484). Ideal for electrical, mechanical, and industrial applications requiring durable, code-compliant conduit connections.
  • 6" size for large conduit systems
  • Malleable iron body with electro-zinc plating for corrosion resistance
  • Hardened hex head set screw ensures vibration-resistant, concrete-tight connections
  • Nylon insulated throat reduces wire pulling effort by up to 50%
  • UL listed (E-23018) and CSA certified (LR-2884, LR-4484)

Specifications

Application
Set screw type fitting used to join unthreaded rigid or IMC conduit to box or enclosure.
Cable Entry
Through Rigid conduit into throat of fitting
Finish
Zinc Electroplated
Material
Malleable Iron
Size
6 in
Special Features
Concrete-tight, Insulated Throat
Temperature Rating
105?°C
Temperature Rating, Maximum
221 F
Temperature Rating, Maximum
105 C
Temperature Rating, Minimum
221 F
Temperature Rating, Minimum
105 C
Trade Size
6 in
Type
Connector
Package Dimensions (L x W x H)
9.625 IN x 7.375 IN x 6 IN
Package Dimensions (L x W x H)
24.4475 cm x 18.7325 cm x 15.24 cm
Package Weight (Imperial)
9.203 L
Package Weight (Metric)
4.174 kg
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Frequently Asked Questions

What is the material of the 3511-I connector?

The 3511-I connector is made of malleable iron.

What is the trade size of the connector?

The trade size of the connector is 6 inches.

What is the catalog ID for the connector?

The catalog ID for the connector is 3511-I.

What is the UPC number for the connector?

The UPC number for the connector is 78174724511.

Is the connector concrete-tight?

Yes, the connector is concrete-tight.

What type of conduit does the connector join?

The connector joins unthreaded rigid or IMC conduit.

What is the standard package quantity for the connector?

The standard package quantity is 5 connectors.

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