Crouse-Hinds, a leading manufacturer of electrical and industrial products, offers a wide range of grounding bushings designed for use with rigid and intermediate metal conduit (IMC). These grounding bushings are essential for providing a secure and reliable grounding connection in electrical systems. This guide provides a detailed overview of the products, including their applications, features, sizes, and specifications.
Description
Key Features of Crouse-Hinds Grounding Bushings
- Insulated Throat Design: Protects against corrosion, chemicals, and extreme temperatures.
- High-Temperature Rating: Rated for 105°C or 150°C, making them suitable for demanding environments.
- Durable Materials: Available in malleable iron and zinc die-cast constructions.
- UL Listed: All products are UL listed (UL File No. E-6225), ensuring compliance with safety standards.
- Multiple Lug Options: Compatible with both copper and aluminum grounding conductors.
- Set Screw Mechanism: Ensures a secure and adjustable fit for threaded and threadless conduits.
Product Categories
Crouse-Hinds grounding bushings are categorized based on their construction and application:
1. Insulated Throat Grounding Bushings – Malleable Iron
- Applications: Used on threaded rigid/IMC conduit.
- Key Features:
- Resilient Plastic Liner: Resists corrosion, chemicals, and temperature extremes.
- Insuliner – ULTEM1000: Rated at 150°C.
- Set Screw: One set screw per fitting for secure positioning.
- Stainless Steel Hardware: External hardware for added durability.
- Standard Finish: Zinc plated.
- Lug Options:
- Aluminum Lug: For copper or aluminum grounding conductors.
- Copper Lug: For copper grounding conductors.
2. Insulated Throat Grounding Bushings – Zinc Die Cast
- Applications: Used on threaded rigid/IMC conduit.
- Key Features:
- 150°C Rated Plastic Throat Liner: Ensures high-temperature resistance.
- Aluminum Lug: Compatible with copper or aluminum grounding conductors.
- Standard Finish: Zinc plated.
3. Threadless Grounding Bushings – Malleable Iron
- Applications: Used on threadless rigid/IMC conduit.
- Key Features:
- Resilient Plastic Liner: Resists corrosion, chemicals, and temperature extremes.
- Insuliner – ULTEM1000: Rated at 150°C.
- Set Screws: Two set screws per fitting for secure positioning.
- Standard Finish: Zinc plated.
- Lug Options:
- Aluminum Lug: For copper or aluminum grounding conductors.
- Copper Lug: For copper grounding conductors.
Product Specifications
Below is a detailed breakdown of the grounding bushings, including catalog numbers, sizes, lug sizes, unit quantities, and weights:
Insulated Throat Grounding Bushings – Malleable Iron (Threaded)
| Catalog # | Size | Lug Size | Unit Qty. | Weight (lbs. per 100) | Material | UL File No. |
|---|---|---|---|---|---|---|
| GLL1 | 1/2” | #4 – #14 | 50 | 5 | Aluminum | E-6225 |
| GLL2 | 3/4” | #4 – #14 | 50 | 9 | Aluminum | E-6225 |
| GLL3 | 1” | #4 – #14 | 50 | 12 | Aluminum | E-6225 |
| GLL4 | 1 1/4” | #4 – #14 | 25 | 19 | Aluminum | E-6225 |
| GLL4 10 | 1 1/4” | #1/0 – #8 | 25 | 23 | Aluminum | E-6225 |
| GLL5 | 1 1/2” | #4 – #14 | 10 | 24 | Aluminum | E-6225 |
| GLL5 10 | 1 1/2” | #1/0 – #8 | 10 | 28 | Aluminum | E-6225 |
| GLL6 | 2” | #4 – #14 | 10 | 26 | Aluminum | E-6225 |
| GLL6 10 | 2” | #1/0 – #8 | 10 | 32 | Aluminum | E-6225 |
| GLL7 | 2 1/2” | #1/0 – #8 | 10 | 53 | Aluminum | E-6225 |
| GLL7 30 | 2 1/2” | #3/0 – #6 | 10 | 60 | Aluminum | E-6225 |
| GLL7 250 | 2 1/2” | 250MCM – #6 | 10 | 67 | Aluminum | E-6225 |
| GLL8 | 3” | #1/0 – #8 | 5 | 70 | Aluminum | E-6225 |
| GLL8 30 | 3” | #3/0 – #6 | 5 | 72 | Aluminum | E-6225 |
| GLL8 250 | 3” | 250MCM – #6 | 5 | 76 | Aluminum | E-6225 |
| GLL9 | 3 1/2” | #3/0 – #6 | 1 | 100 | Aluminum | E-6225 |
| GLL9 250 | 3 1/2” | 250MCM – #6 | 1 | 100 | Aluminum | E-6225 |
| GLL10 | 4” | #3/0 – #6 | 1 | 110 | Aluminum | E-6225 |
| GLL10 250 | 4” | 250MCM – #6 | 1 | 120 | Aluminum | E-6225 |
| GLL11 | 5” | #3/0 – #6 | 1 | 140 | Aluminum | E-6225 |
| GLL11 250 | 5” | 250MCM – #6 | 1 | 143 | Aluminum | E-6225 |
| GLL12 | 6” | #3/0 – #6 | 1 | 160 | Aluminum | E-6225 |
| GLL12 250 | 6” | 250MCM – #6 | 1 | 163 | Aluminum | E-6225 |
Insulated Throat Grounding Bushings – Malleable Iron (Threadless)
| Catalog # | Size | Lug Size | Unit Qty. | Weight (lbs. per 100) | Material | UL File No. |
|---|---|---|---|---|---|---|
| GLS1 | 1/2” | #4 – #14 | 50 | 5 | Aluminum | E-6225 |
| GLS2 | 3/4” | #4 – #14 | 50 | 9 | Aluminum | E-6225 |
| GLS3 | 1” | #4 – #14 | 50 | 12 | Aluminum | E-6225 |
| GLS4 | 1 1/4” | #4 – #14 | 25 | 19 | Aluminum | E-6225 |
| GLS4 10 | 1 1/4” | #1/0 – #8 | 25 | 23 | Aluminum | E-6225 |
| GLS5 | 1 1/2” | #4 – #14 | 10 | 24 | Aluminum | E-6225 |
| GLS5 10 | 1 1/2” | #1/0 – #8 | 10 | 28 | Aluminum | E-6225 |
| GLS6 | 2” | #4 – #14 | 10 | 26 | Aluminum | E-6225 |
| GLS6 10 | 2” | #1/0 – #8 | 10 | 32 | Aluminum | E-6225 |
| GLS7 | 2 1/2” | #1/0 – #8 | 10 | 53 | Aluminum | E-6225 |
| GLS7 30 | 2 1/2” | #3/0 – #6 | 10 | 60 | Aluminum | E-6225 |
| GLS7 250 | 2 1/2” | 250MCM – #6 | 10 | 67 | Aluminum | E-6225 |
| GLS8 | 3” | #1/0 – #8 | 5 | 70 | Aluminum | E-6225 |
| GLS8 30 | 3” | #3/0 – #6 | 5 | 72 | Aluminum | E-6225 |
| GLS8 250 | 3” | 250MCM – #6 | 5 | 76 | Aluminum | E-6225 |
| GLS9 | 3 1/2” | #3/0 – #6 | 1 | 100 | Aluminum | E-6225 |
| GLS9 250 | 3 1/2” | 250MCM – #6 | 1 | 100 | Aluminum | E-6225 |
| GLS10 | 4” | #3/0 – #6 | 1 | 110 | Aluminum | E-6225 |
| GLS10 250 | 4” | 250MCM – #6 | 1 | 120 | Aluminum | E-6225 |
| GLS11 | 5” | #3/0 – #6 | 1 | 140 | Aluminum | E-6225 |
| GLS11 250 | 5” | 250MCM – #6 | 1 | 143 | Aluminum | E-6225 |
| GLS12 | 6” | #3/0 – #6 | 1 | 160 | Aluminum | E-6225 |
| GLS12 250 | 6” | 250MCM – #6 | 1 | 163 | Aluminum | E-6225 |
Insulated Throat Grounding Bushings – Zinc Die Cast
| Catalog # | Size | Lug Size | Unit Qty. | Weight (lbs. per 100) | Material | UL File No. |
|---|---|---|---|---|---|---|
| HGLL1 | 1/2” | #4 – #14 | 50 | 9 | Aluminum | E-6225 |
| HGLL2 | 3/4” | #4 – #14 | 50 | 11 | Aluminum | E-6225 |
| HGLL3 | 1” | #4 – #14 | 50 | 14 | Aluminum | E-6225 |
| HGLL4 | 1 1/4” | #4 – #14 | 25 | 17 | Aluminum | E-6225 |
| HGLL4 10 | 1 1/4” | #1/0 – #8 | 25 | 24 | Aluminum | E-6225 |
| HGLL5 | 1 1/2” | #4 – #14 | 10 | 20 | Aluminum | E-6225 |
| HGLL5 10 | 1 1/2” | #1/0 – #8 | 10 | 24 | Aluminum | E-6225 |
| HGLL6 | 2” | #4 – #14 | 10 | 27 | Aluminum | E-6225 |
| HGLL6 10 | 2” | #1/0 – #8 | 10 | 31 | Aluminum | E-6225 |
| HGLL7 | 2 1/2” | #1/0 – #8 | 10 | 58 | Aluminum | E-6225 |
| HGLL7 30 | 2 1/2” | #3/0 – #6 | 10 | 67 | Aluminum | E-6225 |
| HGLL7 250 | 2 1/2” | 250MCM – #6 | 10 | 70 | Aluminum | E-6225 |
| HGLL8 | 3” | #1/0 – #8 | 5 | 69 | Aluminum | E-6225 |
| HGLL8 30 | 3” | #3/0 – #6 | 5 | 78 | Aluminum | E-6225 |
| HGLL8 250 | 3” | 250MCM – #6 | 5 | 81 | Aluminum | E-6225 |
| HGLL9 | 3 1/2” | #3/0 – #6 | 1 | 101 | Aluminum | E-6225 |
| HGLL9 250 | 3 1/2” | 250MCM – #6 | 1 | 104 | Aluminum | E-6225 |
| HGLL10 | 4” | #3/0 – #6 | 1 | 120 | Aluminum | E-6225 |
| HGLL10 250 | 4” | 250MCM – #6 | 1 | 123 | Aluminum | E-6225 |
| HGLL11 | 5” | #3/0 – #6 | 1 | 145 | Aluminum | E-6225 |
| HGLL11 250 | 5” | 250MCM – #6 | 1 | 150 | Aluminum | E-6225 |
| HGLL12 | 6” | #3/0 – #6 | 1 | 185 | Aluminum | E-6225 |
| HGLL12 250 | 6” | 250MCM – #6 | 1 | 186 | Aluminum | E-6225 |
Applications
- Threaded Conduit: Ideal for use on threaded rigid/IMC conduit to provide grounding through an insulated bushing.
- Threadless Conduit: Suitable for threadless rigid/IMC conduit, offering a secure grounding connection.
Why Choose Crouse-Hinds Grounding Bushings?
- High-Quality Materials: Durable malleable iron and zinc die-cast constructions.
- Versatility: Compatible with both copper and aluminum grounding conductors.
- Safety Compliance: UL listed for safety and reliability.
- Wide Range of Sizes: Available in sizes from 1/2” to 6”, catering to various electrical systems.
Conclusion
Crouse-Hinds grounding bushings are a reliable choice for ensuring safe and effective grounding in electrical systems. With a variety of sizes, materials, and configurations, these products are designed to meet the needs of both threaded and threadless rigid/IMC conduit applications.
