Eaton Crouse-Hinds UNF305 SS Union - Group B Rated
Part Number: UNF305 SS
Quick Summary
UNF305 SS union provides a rugged conduit connection for rigid/IMC wiring in hazardous locations. Engineers face corrosion resistance challenges, difficult field installations, and mixed environmental codes that slow deployment. This union carries NEC/CEC compliance with Class I Division 1 and Class II/III ratings, plus a Group B rating, giving you credible protection in many industrial settings. Built from 316 stainless steel and sized at 1 inch, it delivers durable performance across wash-down areas and offshore facilities. By choosing this Eaton Crouse-Hinds solution, you align with proven supplier standards while reducing maintenance costs and installation time through robust, drop-in compatibility with standard rigid/IMC piping.
Product Information
Extended Description
UNF305 SS Eaton Crouse-Hinds: Eaton Crouse-Hinds series UNF union, Rigid/IMC, Female, 316 stainless steel, Group B rated, 1"
Product Name
Eaton Crouse-Hinds series UNF union
Catalog Number
UNF305 SS
UPC
662276585881
Product Length/Depth
2.09 in
Product Height
2.03 in
Product Width
2.03 in
Product Weight
0.77 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
316 stainless steel
Trade size
1"
Special features
Group B rated
Crouse-Hinds series Explosionproof Conduit Unions, Elbows and Tees catalog page
Explosionproof Conduit Unions, Elbows and Tees Canadian certification
Explosionproof Conduit Unions, Elbows and Tees Canadian certification
Eaton Specification Sheet - UNF305 SS
316 stainless steel construction resists corrosion and chemical attack, extending service life in harsh spaces. This material choice translates to lower maintenance costs and fewer replacements in offshore platforms and chemical plants. Application: hazardous-location installations with wash-down or salt spray exposure. 1 inch trade size and compatibility with Rigid/IMC conduit streamline field assemblies, reducing part counts and installation time. This translates to faster builds, fewer mismatch issues, and reliable terminations in control rooms and outdoor cabinets within hazardous areas. Female union interface ensures straightforward mating with male connectors and minimizes misalignment. Application: compact layouts and tight enclosures, improving reliability and reducing rework. Group B rated with NEC Class I Div 1/Div 2 and Class II/III descriptions ensures code compliance and safer operation in mixed gas and dust environments. Application: adherence to multiple regulatory regimes with predictable field performance. Precise dimensions—2.09 in length, 2.03 in height, 2.03 in width—and a weight of 0.77 lb support accurate enclosure fill calculations and mounting planning in complex installations.
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FAQs
UNF305 SS is designed for Rigid/IMC conduit systems with a 1 inch trade size and a female union configuration. It provides a secure, code-compliant connection suitable for hazardous locations, simplifying field assembly and reducing the risk of mismatch between components.
The UNF305 SS carries NEC/CEC standards with hazardous ratings including Class I Division 1 and Division 2, Class II Division 1 and 2, and Class III, plus a Group B rating. This combination supports compliance across many regulated environments and protects personnel and equipment in hazardous locations.
Install UNF305 SS by aligning the female union with the corresponding male conduit, insert the rigid/IMC conduit, and secure per the manufacturer torque recommendations. Ensure the assembly is properly sealed and meets NEC/CEC requirements for hazardous locations. Use Eaton’s specification sheet for exact torque values and installation guidelines.
The official Eaton specification sheet for UNF305 SS is available at https://www.eaton.com/us/en-us/skuPage.UNF305%2520SS.pdf. This document includes installation guidance, torque specifications, and performance data to support compliant field installations.
UNF305 SS has a length of 2.09 inches, height of 2.03 inches, and width of 2.03 inches, with an approximate weight of 0.77 pounds. These measurements help with enclosure fill calculations, mounting clearances, and overall layout in hazardous-location installations.