Eaton UNF506 Union - Rigid/IMC, Hazardous Locations
Part Number: UNF506
Quick Summary
Eaton UNF506 Union provides a rugged, hazard-rated connection for 1-1/2 inch rigid/IMC conduit used in industrial facilities. Engineers often struggle to find fittings that meet NEC/CEC requirements while resisting corrosion and vibration in harsh locations. This UNF506 is rated for Hazardous/Classified Locations and supports Class I, Class II, and Class III installations, with Division 1 and Division 2 delineations, including Group B protection. By combining durable steel construction with a precise fit, it reduces installation time and long-term maintenance costs, delivering reliable performance and compliance across demanding environments. The product also aligns with standards documentation and certification resources for quick approval and procurement.
Product Information
Extended Description
UNF506 Eaton Crouse-Hinds: Eaton Crouse-Hinds series UNF union, Rigid/IMC, Female, Steel, Group B rated, 1-1/2"
Product Name
Eaton Crouse-Hinds series UNF union
Catalog Number
UNF506
UPC
782274071015
Product Length/Depth
2.75 in
Product Height
3.06 in
Product Width
3.06 in
Product Weight
2.4 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
Steel
Trade size
1-1/2"
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 - UNF506
Feature: Rugged steel body provides superior durability in harsh environments. This reduces replacement costs and downtime, especially in chemical plants and mining operations where vibration and exposure to contaminants are common. Application: explosionproof conduit unions for hazardous facilities. Feature: Conduit compatibility with rigid/IMC and 1-1/2 inch trade size simplifies standardization and reduces inventory by using a single joint across multiple lines. Application: mid-size industrial runs and retrofit projects. Feature: NEC/CEC compliance and hazardous-location ratings including Class I, Class II, Division 1 and Division 2, plus Group B protection. This supports safer installations and smoother approvals on oil, gas, chemical, and mining sites. Application: regulated facilities requiring proven explosionproof performance. Feature: Precise dimensions and weight (2.75 in length, 3.06 in width and 3.06 in height) and a 2.4 lb body enable easier handling in confined spaces and faster assembly. Application: dense electrical rooms and field installations with limited maneuverability. Feature: Accessible documentation and certification resources (catalogs, datasheets, UL/CSA certifications) streamline procurement and inspection. Application: project planning, QA reviews, and commissioning in highly regulated environments.
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FAQs
Yes. UNF506 is designed for rigid and IMC conduit with a 1-1/2 inch trade size and a female union configuration, ensuring secure, explosion-proof connections in hazardous locations. The steel body and precision threads improve alignment and sealing, while Group B rating supports Class I and II, Division 1 and 2 installations, speeding field assembly and reducing maintenance risk.
UNF506 complies with NEC/CEC standards and Hazardous Location classifications, including Area classification for Hazardous/Classified Locations. It supports Class I, Division 1 & 2, Class II, Division 1 & 2, and Class III, with UL and CSA certifications documented in product literature. This alignment eases approvals for oil, gas, chemical, and mining projects and enhances safety compliance.
Group B rating indicates suitability for specific hazardous atmospheres. When using UNF506, ensure connected components share compatible ratings and follow local codes for enclosure size, sealing, and grounding. The 2.75 in length and 3.06 in diameter provide a robust enclosure, while the 2.4 lb weight supports easier handling in tight spaces and reduces installation fatigue.
The UNF506 measures 2.75 inches in length, 3.06 inches in width, and 3.06 inches in height, with an approximate weight of 2.4 pounds. It uses a 1-1/2 inch trade size for rigid/IMC conduit connections. These dimensions support precise planning, simplify spare-part inventories, and ensure a predictable fit in standard enclosures.
The steel UNF506 union delivers long service life in harsh environments, reducing replacement cycles and downtime. With NEC/CEC compliance and UL/CSA certifications, project approvals are streamlined and inspection risk decreases. Although upfront material costs may be higher, total cost of ownership lowers through fewer corrosion-related failures, fewer leaks, and faster commissioning.