Authorized ABB Distributor (Installation Products)
ABB - Installation Products UNF305-W - PVC Coated Explosion and Dust-Ignition Proof UNF Female Union, Pipe Size 1 Inch/27 Metric, 3 Piece, for Hazardous and Non-hazardous Locations, Overall Length 2.16 Inch/54.86 Millimeters, Overall Diameter 2.00 Inch/50.80 Millimeters, Electrogalvanized Steel, White

ABB Installation Products UNF305-W PVC Coated Explosion and Dust-Ignition Proof UNF Female Union, Pipe Size 1 Inch/27…

UPC: 704508028831

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Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The ABB UNF305-W 1" PVC Coated Explosion and Dust-Ignition Proof Female Union is a three-piece coupling designed for hazardous and non-hazardous industrial environments. Manufactured by ABB Installation Products, this union features electrogalvanized steel construction with a white PVC coating, providing corrosion resistance and maintaining grounding continuity in rigid conduit systems. The 1-inch (27 metric) trade size ensures compatibility with standard conduit systems, while the overall dimensions of 2.16 inches (54.86 mm) in length and 2.00 inches (50.80 mm) in diameter allow for secure installations in confined spaces. This explosion-proof and dust-ignition-proof union is certified for use in Class I, Divisions 1 & 2, Groups C, D; Class II, Divisions 1, Groups E, F, G; and Class III, Divisions 1 & 2 hazardous locations. It meets NEMA ratings 3, 4, 7 CD, and 9 EFG, ensuring reliable performance in wet, corrosive, or ignitable atmospheres. The three-piece design simplifies installation and future modifications, while the PVC coating provides UV resistance and additional protection against environmental degradation. Ideal for rigid conduit systems in indoor or outdoor wet locations, this union is suitable for connecting two adjacent conduits or integrating with junction boxes, control stations, and other electrical enclosures. The electrogalvanized steel core ensures structural integrity, while the dual-layer PVC coating—nominal 0.002" (2 mil) blue urethane interior and 0.040" (40 mil) exterior PVC—delivers long-term durability and corrosion resistance. Flexible PVC sealing sleeves further enhance protection at threaded connections, reducing the risk of moisture ingress and grounding discontinuities. Key applications include hazardous industrial facilities, chemical plants, refineries, and manufacturing environments where explosion and dust-ignition proofing are critical. The UNF305-W is also suitable for non-hazardous locations requiring robust corrosion protection and reliable conduit system integrity.
  • 1" trade size (27 metric) explosion-proof female union
  • Electrogalvanized steel construction with white PVC coating
  • Three-piece design for easy installation and future modifications
  • Certified for Class I, II, III hazardous locations (Div. 1 & 2)
  • NEMA 3, 4, 7 CD, 9 EFG rated for wet, corrosive environments

Specifications

Application
To Connect Conduit to Conduit, or to Provide a Means for Future Modification of the Conduit System
Color
White
Connection Type
Female Union Thread
Connection Type
UNF Female Thread
Length
2.16 in
Length
54.86 mm
Material
Steel
Material
Electrogalvanized Steel with PVC Coating
Material
Electrogalvanized Steel, PVC Coated
Material Quality
Steel
Outside Diameter
2 in
Outside Diameter
50.8 mm
Series
UNF305
Size
1 Inch / 27 Metric
Size
1 Inch (27 Metric)
Special Features
Compact Design Which Permits Assembly with a Minimum of Clearance to Other Adjacent Conduit and/or Equipment
Standard
UL 1203, CSA
Trade Size
1 in , 27 mm
Type
Female Union
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)
0.890 L
Package Weight (Metric)
0.404 kg
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Frequently Asked Questions about ABB - Installation Products

How are Thomas and Betts products typically installed?

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Ocal offers a comprehensive range of corrosion-resistant conduit systems, including PVC-coated conduit and fittings, conduit bodies, hazardous location fittings, and strut accessories. Their products are designed to provide superior corrosion protection, featuring a hot-dipped galvanizing process and UL listed Type 4X PVC-coated conduit bodies, ensuring durability in the most demanding environments.