Eaton Crouse-Hinds UNY305 Union - 1" Rigid/IMC, Group B
Part Number: UNY305
Quick Summary
The Eaton Crouse-Hinds UNY305 union provides a rugged connection for rigid/IMC conduit in hazardous locations. Installers often struggle with fitment gaps, misalignment, and noncompliant fittings that slow projects and raise safety risk. This union is designed to meet NEC/CEC requirements for Hazardous/Classified Locations and is supported by UL/CSA certifications, giving field teams confidence in long-term reliability. By delivering a sturdy, compliant interface, UNY305 reduces installation time, minimizes rework, and improves system integrity. For engineers, the 1" trade size and steel construction support scalable wiring in chemical plants, refineries, and other demanding environments. The solution aligns with Eaton's UNY family, delivering consistent performance across the wiring and connectivity portfolio.
Product Information
Extended Description
UNY305 Eaton Crouse-Hinds: Eaton Crouse-Hinds series UNY union, Rigid/IMC, Male, Steel, Group B rated, 1"
Product Name
Eaton Crouse-Hinds series UNY union
Catalog Number
UNY305
UPC
782274648101
Product Length/Depth
3 in
Product Height
2.19 in
Product Width
2.19 in
Product Weight
0.89 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
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 - UNY305
Feature → Steel, male UNY305 union designed for 1" rigid/IMC conduit. Business Impact → Delivers robust mechanical strength and a compact footprint that withstands vibration and impact, reducing wear and downtime. Application → Ideal for permanent installs in industrial facilities where safety and reliability matter. Feature → Group B rated for hazardous locations. Business Impact → Enables safer installations with regulatory compliance, reducing risk and rework. Application → Suitable for Class I, Division 1 and 2, and Class II/III environments such as refineries and chemical plants. Feature → Exact dimensions and weight: 3 in length, 2.19 in width and height, 0.89 lb. Business Impact → Easier handling on site and smoother gaps during panel routing, lowering installation time. Application → Field installations where space is constrained and efficiency matters. Feature → Conduit type compatibility: Rigid/IMC with 1" trade size. Business Impact → Streamlines procurement with a single, standardized union across projects. Application → Works seamlessly with the Eaton UNY family and common rigid/IMC conduit systems. Feature → Certifications and standards: NEC/CEC compliance and Hazardous/Classified Locations ratings. Business Impact → Simplifies QA, audits, and regulatory acceptance. Application → Essential for regulated facilities in oil, gas, and chemical processing. Feature → Documentation and support: Catalog pages and a dedicated specification sheet available. Business Impact → Accelerates design reviews and procurement cycles. Application → Engineering kickoff, procurement handoffs, and vendor qualification.
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FAQs
The UNY305 is a 1 inch trade size union with a steel, male body designed for rigid/IMC conduit, optimized for hazardous locations. It aligns with NEC/CEC requirements and supports Class I and II environments, delivering dependable, code-compliant connections that simplify field installs and reduce rework.
UNY305 carries NEC/CEC compliance for hazardous locations and is tested for area classifications such as Hazardous/Classified Locations. It is supported by UL/CSA certification listings, and catalog documentation confirms compatibility with Eaton’s explosion-proof conduit fittings.
Yes. UNY305 is Group B rated for hazardous locations and intended for Class I, Division 1 and 2, plus other classified locations. Its steel construction and rigid/IMC compatibility make it a reliable choice for refinery, chemical, and industrial environments requiring explosion-protected conduit unions.
Refer to NEC/CEC standards, Hazardous/Classified Locations area classifications, and UL/CSA certification listings shown in the product sheets and supplier catalogs. Canadian CSA/UL validation and Eaton’s specification sheet provide the necessary compliance evidence for audits.
UNY305 provides a compact, durable interface that speeds assembly in restricted spaces, reduces rework from misalignment, and supports standardized 1" conduit connections across projects. Coupled with available catalogs and spec sheets, it enhances procurement efficiency and long-term maintenance cost savings in hazardous-area facilities.