Eaton Crouse-Hinds UNF905 Union - Group B rated, Hazardous
Part Number: UNF905
Quick Summary
UNF905 union is a rugged conduit fitting designed for rigid/IMC conduit in hazardous locations. Installers often struggle with maintaining a reliable seal and ensuring ongoing compliance in Class I Division 1 environments. This unit aligns with NEC/CEC requirements and UL/CSA listings, delivering proven protection for explosion-proof applications. By choosing this union, you gain a robust, field-install friendly solution that reduces maintenance cycles and downtime, while supporting compliant, long-lasting installations in demanding industrial settings. The combination of Group B rating with corrosion-resistant material enhances lifecycle performance and simplifies procurement and installation across multiple projects.
Product Information
Extended Description
UNF905 Eaton Crouse-Hinds: Eaton Crouse-Hinds series UNF union, Rigid/IMC, Female, Feraloy iron alloy, Group B rated, 3-1/2"
Product Name
Eaton Crouse-Hinds series UNF union
Catalog Number
UNF905
UPC
782274644707
Product Length/Depth
4.13 in
Product Height
5.69 in
Product Width
5.69 in
Product Weight
8.9 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Division 2 Class II, Division 1 Class II, Division 2 Class III
Conduit type
Rigid/IMC
Gender
Female
Material
Feraloy iron alloy
Trade size
3-1/2"
Special features
Group B rated
Crouse-Hinds series Explosionproof Conduit Unions, Elbows and Tees catalog page
Explosionproof Conduit Unions, Elbows and Tees UL certification
Explosionproof Conduit Unions, Elbows and Tees UL certification
Eaton Specification Sheet - UNF905
Feature: Rigid/IMC conduit compatibility. Business Impact: Streamlines installation, reduces fitting misalignment, and minimizes field adjustments. Application: New builds and retrofits in chemical plants and refineries. Feature: Feraloy iron alloy construction. Business Impact: Delivers high strength and improved wear/corrosion resistance, lowering replacement costs. Application: Offshore platforms and mining sites with harsh environments. Feature: Group B rated hazardous location performance. Business Impact: Supports compliance with Class I/II/III across divisions, reducing risk and regulatory delays. Application: Oil & gas facilities, petrochemical plants, and power generation. Feature: 3-1/2" trade size with corresponding dimensions. Business Impact: Optimizes space-constrained installations and ensures proper conduit sealing. Application: Large-diameter conduit terminations in control rooms and equipment rooms. Feature: NEC/CEC standards alignment and UL/CSA listings. Business Impact: Simplifies approval processes, accelerates procurement, and lowers project risk. Application: Any installation requiring rigorous certification and traceability. Feature: Female gender design for quick, secure assembly. Business Impact: Reduces installation time and tool count, enhancing field efficiency. Application: Maintenance work and multi-location projects across facilities.
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FAQs
UNF905 is designed for straightforward field assembly on rigid/IMC conduit. Ensure the connection aligns with the conduit’s far-end, tighten to the manufacturer’s torque spec, and verify a proper seal to maintain explosion-proof integrity. Follow NEC/CEC guidelines and confirm any UL/CSA listing requirements are met for your specific facility.
Key specs include a 3-1/2" trade size, female gender, Feraloy iron alloy body, and Group B rating. It supports rigid/IMC conduit, with dimensions around 4.13 in length and approximately 5.69 in height and width, and a weight near 8.9 lb. It’s certified for hazardous/classified locations per NEC/CEC.
Yes. UNF905 has UL and CSA certification reports available, alongside NEC/CEC compliance documentation. These listings validate explosion-proof performance in hazardous locations and support regulatory acceptance across major markets.
Ideal for oil & gas, chemical processing, and power generation facilities where rigid/IMC conduit connections must endure hazardous environments. The unit’s Group B rating and Feraloy iron alloy construction provide durable protection against corrosive atmospheres and frequent mechanical stress.
UNF905 delivers a balance of robust material strength, rigorous NEC/CEC compliance, and UL/CSA certifications, reducing risk and compliance delays. Its easy female installation, compatible 3-1/2" trade size, and proven performance in Class I/II/III environments contribute to lower maintenance costs and faster project execution.