Eaton Crouse-Hinds UNY705 SA Union - Hazardous/Classified Locations
Part Number: UNY705 SA
Quick Summary
The Eaton Crouse-Hinds UNY705 SA union connects rigid/IMC conduit in hazardous locations. End users often face corrosion, weight, and compliance challenges when wiring in demanding environments. It complies with NEC/CEC standards, carries UL certification for explosion-proof use, and supports Class I/II/III, Division 1 and 2 ratings. Made from copper-free aluminum and sized at 2-1/2 inches, it delivers lighter installation with robust corrosion resistance, boosting reliability in automation and process industries. These features translate to lower maintenance costs and quicker installations on job sites. Its rugged construction also supports easy inventory management and reduces replacement cycles in demanding facilities.
Product Information
Extended Description
UNY705 SA Eaton Crouse-Hinds: Eaton Crouse-Hinds series UNY union, Rigid/IMC, Male, Copper-free aluminum, 2-1/2"
Product Name
Eaton Crouse-Hinds series UNY union
Catalog Number
UNY705 SA
UPC
782274747194
Product Length/Depth
5.34 in
Product Height
4.63 in
Product Width
4.63 in
Product Weight
2.55 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
2-1/2"
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 - UNY705 SA
Material choice is copper-free aluminum, which reduces weight while delivering strong corrosion resistance. Business impact: easier handling on installation crews and lower fatigue during field assembly, especially in remote sites. In hazardous location projects like chemical plants or refineries, lighter fittings speed up conduit routing and reduce crane or scaffold time, improving project schedules. Trade size of 2-1/2 inches and compatibility with rigid/IMC conduits streamline the bill of materials. Application: fits standard conduits without adapters, minimizing inventory complexity and field rework. The result is faster spooling of duct runs and fewer field modifications for compliant installations. NEC/CEC compliance and hazardous-location ratings provide regulatory confidence. In addition, UL certification for explosion-proof conduit fittings and CSA certification support safety and third-party verification. This combination reduces QA testing and accelerates approvals for industrial automation projects. Male union design simplifies mating of components and reduces installation steps in tight spaces. It also aligns with Eaton Crouse-Hinds explosion-proof fittings for standardized assemblies. Access to Eaton datasheets and catalogs facilitates proper installation notes and field guidance. Material dimensions and weight—5.34 in length, 4.63 in height and width, 2.55 lb weight—support efficient logistics and on-site handling in rugged environments.
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FAQs
The UNY705 SA is designed for rigid/IMC conduit systems with a 2-1/2 inch trade size and male connection. It suits Class I, II, and III hazardous locations under NEC/CEC, enabling straightforward field assembly without adapters in compliant installations.
This union is NEC/CEC compliant, UL certified for explosion-proof use in hazardous locations, and listed with Class I/II/III, Division 1 and 2 ratings. CSA certification further corroborates safety and third‑party verification for industrial automation projects.
Ideal for chemical plants, oil and gas facilities, mining operations, and other environments requiring explosion‑proof wiring in rigid/IMC conduit systems, where reliable, durable conduit connections are essential for safety and uptime.
Plan for a copper-free aluminum, 2-1/2" union that mates with rigid/IMC conduits, following NEC/CEC guidelines and UL installation notes. Ensure compatible conduit sizes, proper torque and sealing practices per the Eaton specification sheet, and reference the available technical datasheets for field guidance.
Weight reduction from copper-free aluminum lowers handling effort and installation time, while ongoing corrosion resistance improves long-term reliability. NEC/CEC compliance and UL/CSA certifications speed approvals, reduce QA burdens, and help maintain project schedules in hazardous-area installations.