NSI Industries SGB-39040 - Split Bushing, Insulated, Grounding, Zinc Die Cast, Size 4 Inch, 6-250 Lug
NSI Industries

SGB-39040

UPC: 781747939050


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Overview

The NSI Industries SGB-39040 is a 4-inch insulated grounding split bushing constructed from durable zinc die cast. This bushing is designed to accommodate wire ranges from 6 AWG to 250 kcmil copper or aluminum conductors, providing superior grounding continuity. Its split design allows for post-wire pull installation, eliminating the need to thread the bushing onto the conduit, which simplifies installation in tight spaces and reduces labor. The integral grounding lug is securely attached to prevent loss and ensure reliable connection. The rounded insulator surface minimizes drag and prevents wire abrasion during installation. A mounting screw with a nylon locking patch and cone point ensures a secure fit on both threaded and threadless rigid and IMC conduits. This design reduces inventory needs by covering an extended wire range and compatibility with various conduit types. The insulator is rated for 150°C (302°F) and has a 94V-0 flammability rating. The SGB-39040 is UL File #E3060 and CSA File #LR2884 listed/certified, conforming to UL 514B, UL 467, CSA C22.2 No. 18, and CSA C22.2 No. 41 standards. Ideal for applications in confined areas, corners, and multiple conduit runs.
  • 4-inch zinc die cast insulated grounding split bushing
  • Accommodates 6 AWG to 250 kcmil CU/AL wire
  • Split design for post-wire pull installation
  • Integral grounding lug for superior continuity
  • UL File #E3060, CSA File #LR2884 listed/certified

Specifications

Application
Used in situations where wires have already been pulled through Rigid/IMC conduit, and an insulated bushing is required. Grounding lug; aluminum alloy 6061-T6. Rated 150 Degree C. cULus listed. Patented. Now featuring UV Stabilized Insulators and Stainless Steel Hardware, perfect for solar and other outdoor installations!
Application
aluminum alloy 6061-T6. Rated 150 Degree C. cULus listed. Patented. Now featuring UV Stabilized Insulators and Stainless Steel Hardware, perfect for solar and other outdoor installations!;Used in situations where wires have already been pulled through Rigid/IMC conduit, and an insulated bushing is required. Grounding lug
Color
Grey with Black Insulator
Finish
Ball burnish
Material
Zinc alloy
Size
4 IN
Special Features
Grounding Lug Wire Capacity # 6 - #250
Standard
cULus
Temperature Rating
150?°C
Temperature Rating, Maximum
302 F
Temperature Rating, Maximum
150 C
Temperature Rating, Minimum
302 F
Temperature Rating, Minimum
150 C
Trade Size
4 in
Type
Split
Package Weight (Imperial)
0.687 L
Package Weight (Metric)
0.312 kg
Split Bushing, Insulated, Grounding, Zinc Die Cast, Size 1-1/2 Inch,, 14-1/0 Lug

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SGB-38940

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SGB-389CL

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SGB-388CL

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SGBTL386CL

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SGBTL384CL

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SGB-386CL

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SGBTL38940

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SGBTL38740

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Split Bushing, Threadless, Insulated, Grounding Zinc Die Cast, Size 4 Inch. 6 to 250 MCM Grounding Lug

SGBTL39040

Split Bushing, Threadless, Insulated, Grounding Zinc Die Cast, Size 4 Inch. 6 to 250 MCM Grounding Lug

Frequently Asked Questions

What is the standard package quantity for SGB-39040?

The standard package quantity for the SGB-39040 is 20 units.

What are the dimensions of the SGB-39040 bushing?

The dimensions are A: 2.99 in, B: 4.47 in, C: 0.73 in, D: 3.87 in, and E: 5.00 in.

What is the trade size of the SGB-39040 bushing?

The SGB-39040 bushing has a trade size of 4 inches.

Is the SGB-39040 suitable for outdoor installations?

Yes, it features UV Stabilized Insulators and Stainless Steel Hardware, making it perfect for solar and other outdoor installations.

What certifications does the SGB-39040 hold?

The SGB-39040 is cULus listed to UL514B and UL467 specifications, and meets Federal Specification Number A-A-50553 and NEMA Standard FB-1.

What is the temperature rating for the SGB-39040?

The SGB-39040 grounding bushing is rated for a maximum temperature of 150 Degree C.

What materials are used for the SGB-39040 bushing?

The bushing is made from Zinc Alloy. The grounding lug is aluminum alloy 6061-T6 with a tin electro-plate finish.

What is the primary application of the SGB-39040 bushing?

The SGB-39040 bushing is used when wires have already been pulled through conduit or EMT fittings and an insulated grounding bushing is required.

What materials are used for the SGB-39040 bushing?

The bushing is made from Zinc Alloy. The grounding lug is aluminum alloy 6061-T6 with a tin electro-plate finish.

What is the standard package quantity for SGB-39040?

The standard package quantity for the SGB-39040 is 20 units.

How to Install the Mighty-BOND Split Grounding/Bonding Bushing

This guide details the installation of the Mighty-BOND Split Grounding/Bonding Bushing, a UL Listed component designed for use with threaded Rigid or Intermediate Metal Conduit and fittings, uniquely allowing installation after conductors are pulled.

Estimated time: 15m

Tools needed:

Screwdriver

Supplies needed:

Grounding or bonding conductor

  1. Position the Bushing

    Open the Mighty-Bond™ split bushing and place it around the conductors, positioning it onto the top of the RMC, IMC, or fitting threaded end.

  2. Close and Align the Bushing

    Close the Mighty-Bond™ bushing and align it to access the set screw, grounding lug, and hinge screw. Ensure the set screw is backed out sufficiently for the two halves to close fully on the threaded conduit or fitting, and that the bushing is as far down on the conduit or fitting threads as possible.

  3. Secure the Bushing

    Tighten the hinge screw first, then the set screw. If applicable, tighten the enclosure bonding screw. Tighten all screws to UL Torque requirements (35 in lb).

  4. Connect the Grounding Conductor

    Insert the appropriate sized grounding or bonding conductor into the lug. Refer to the provided table for the UL Recommended lug screw torque based on the wire range (e.g., 10-14 AWG/MCM Copper/10-12 AWG Aluminum: 35 in lbs; 8 AWG Copper/Aluminum: 40 in lbs; 4-6 AWG Copper/Aluminum: 45 in lbs; 2/0-3 AWG Copper/Aluminum: 50 in lbs) and tighten the screw accordingly.

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