Eaton Crouse-Hinds UNY305 SA Union - Hazardous Locations
Part Number: UNY305 SA
Quick Summary
UNY305 SA union from Eaton Crouse-Hinds provides a robust conduit connection for rigid/IMC systems in hazardous locations. Installers often struggle with fittings that combine mechanical strength, corrosion resistance, and regulatory compliance in Class I/Division environments. This product aligns with NEC/CEC standards and supports hazardous-area ratings including Class I Division 1, Class I Division 2, Class II Division 1, Class II Division 2, and Class III, enabling safer, code-compliant installations. Its copper-free aluminum body delivers light weight and corrosion resistance, while a 1 inch trade size suits common field installations. Designed for quick mounting and reliable sealing, UNY305 SA helps reduce labor time and lifecycle costs for industrial facilities.
Product Information
Extended Description
UNY305 SA Eaton Crouse-Hinds: Eaton Crouse-Hinds series UNY union, Rigid/IMC, Male, Copper-free aluminum, Group B rated, 1"
Product Name
Eaton Crouse-Hinds series UNY union
Catalog Number
UNY305 SA
UPC
782274101958
Product Length/Depth
3 in
Product Height
2.03 in
Product Width
2.03 in
Product Weight
0.3 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
Male
Material
Copper-free aluminum
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 - UNY305 SA
Copper-free aluminum construction reduces weight and improves corrosion resistance, delivering higher long-term reliability in harsh environments. Business impact: easier handling during installation and lower maintenance costs in offshore, chemical, and refinery sites. Application: rigid/IMC conduit in hazardous locations where weight and corrosion resistance matter. Conduit compatibility with a 1" trade size supports standard field runs, enabling faster installations and fewer adapters. Field teams benefit from improved torque control and consistent sealing, reducing call-backs and rework. Business impact: lowered total cost of ownership and quicker project ramp-up. Application: new builds and retrofits in Class I/II/III areas where NEC/CEC compliance is mandatory. Group B rated performance adds an extra layer of protection in flammable atmospheres, improving safety margins. Business impact: safer commissioning and sustained compliance across lifecycle. Application: installations in chemical plants, oil refineries, and manufacturing floors. The product’s lightweight rigid/IMC compatibility simplifies retrofits and expansions, reducing downtime and enhancing project scheduling. Application: upgrades to existing Eaton CH conduit ecosystems with verified compatibility. Additional resources include the Eaton specification sheet and Canadian certification listings for plan approvals and audits, supporting a smoother procurement and installation process.
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FAQs
The UNY305 SA is designed for rigid/IMC conduit with a male connection and a 1 inch trade size. It pairs with Eaton Crouse-Hinds UNY unions for secure, code-compliant connections in hazardous locations. Ensure mating with compatible fittings per NEC/CEC guidelines to maintain installation integrity in Class I, II, and III environments.
UNY305 SA carries NEC/CEC standards and hazardous-area ratings including Class I Division 1 and 2, Class II Division 1 and 2, and Class III. It is listed for Hazardous/Classified Locations, with Group B rating. Canadian certification references are available through CSA/UL listings, supporting compliance during audits and field approvals.
The union measures 3 inches in length and 2.03 inches in height and width, with a weight of 0.3 pounds. It is a 1 inch trade size fitting, crafted from copper-free aluminum for reduced weight and enhanced corrosion resistance, facilitating easier handling and faster installs in constrained spaces.
Yes. UNY305 SA is designed for hazardous/classified locations and supports Class I Division 1 and Division 2 ratings, among others. The copper-free aluminum body and Group B rating provide reliable performance in flammable or corrosive environments. Always verify project-specific code requirements and use matching gaskets and seals to maintain explosion-protection integrity.
Its 1 inch trade size and 3 inch length enable quick alignment with rigid/IMC conduit runs, while the lightweight copper-free aluminum aids handling. The design supports straightforward mounting within Eaton Crouse-Hinds CH series fittings, reducing setup time. For optimal performance, consult the Eaton specification sheet for torque and sealing recommendations to minimize rework and ensure compliance.