ABB - Installation Products HUB4-B - PVC Coated Zinc Hub Connector with Thermoplastic Insulated Throat, Pipe Size 4 Inch/103 Metric, Overall Diameter 5.50 Inch/139.70 Millimeters, Maximum Panel Thickness 0.25 Inch/6.35 Millimeters, Throat Diameter 3.88 Inch/98.55 Millimeters, Nitrile Rubber (Buna-N) Sealing Ring, Light Blue
ABB - Installation Products

HUB4-B

UPC: 704508388843


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Overview

The ABB HUB4-B is a 4-inch (103mm) PVC-coated zinc hub connector designed for secure panel entry and cable management in industrial electrical systems. This connector features a thermoplastic insulated throat for abrasion resistance and electrical hazard protection, ensuring long-term reliability in demanding environments. With an overall diameter of 5.50 inches (139.70mm) and a maximum panel thickness capacity of 0.25 inches (6.35mm), the HUB4-B accommodates a wide range of enclosure types. The throat diameter measures 3.88 inches (98.55mm), providing ample space for conduit routing. Light blue color coding enhances visibility and quick identification in complex electrical installations. The zinc base material offers corrosion resistance, while the PVC coating provides additional protection against harsh chemicals and physical damage. The nitrile rubber (Buna-N) sealing ring ensures a tight seal, preventing ingress of liquids and particulates. This hub connector is engineered for durability and ease of installation, supporting robust protection in junction boxes, control cabinets, and electrical panels where environmental sealing and secure connections are critical.
  • 4-inch (103mm) pipe size for standard conduit applications
  • PVC-coated zinc construction for corrosion resistance
  • Thermoplastic insulated throat for abrasion and electrical protection
  • Nitrile rubber (Buna-N) sealing ring for weather-resistant barrier
  • Light blue color for enhanced visibility in electrical systems

Specifications

Application
To positively bond conduit to box or enclosure
Color
Light Blue
Color
Blue
Material
PVC Coated Zinc
Material
PVC Coated Zinc with Nitrile Rubber (Buna-N) Sealing Ring
Size
4 Inch/103mm
Size
4 Inch / 103 Metric
Special Features
Hexagonal/Splined Body and Locknut Enables Fast and Easy Installation
Temperature Rating
105 C
Temperature Rating, Maximum
221 F
Temperature Rating, Maximum
105 C
Temperature Rating, Minimum
221 F
Temperature Rating, Minimum
105 C
Type
Hub Connector
Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
4.130 L
Package Weight (Metric)
1.873 kg
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Frequently Asked Questions

What is the maximum panel thickness for the HUB4-B?

The HUB4-B supports a maximum panel thickness of 0.25 inches (6.35 millimeters).

What type of seal does the HUB4-B use?

The HUB4-B features a nitrile rubber (Buna-N) sealing ring for environmental protection.

What is the throat diameter of the HUB4-B?

The throat diameter measures 3.88 inches (98.55 millimeters).

What is the overall diameter of the HUB4-B?

The overall diameter is 5.50 inches (139.70 millimeters).

Is the HUB4-B suitable for outdoor use?

Yes, the HUB4-B's Buna-N seal and PVC coating provide protection against moisture and contaminants, making it suitable for outdoor and harsh environments.

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