Eaton Crouse-Hinds EYS1 SA Conduit Sealing Fitting - Group B
Part Number: EYS1 SA
Quick Summary
Eaton Crouse-Hinds EYS1 SA conduit sealing fittings provide rugged protection for electrical conduits in hazardous locations. In challenging environments, improper sealing can lead to moisture intrusion, dust ingress, and costly downtime. This 1/2 inch, female fitting carries NEC/CEC compliance with hazardous location ratings including Class I and II (Division 1 and 2) and Class III, plus a Group B rating for enhanced insulation performance. By leveraging copper-free aluminum and a compact footprint, you gain installation efficiency, reduced weight, and long-term cost savings in safety-driven facilities and projects where regulatory diligence matters.
Product Information
Extended Description
EYS1 SA Eaton Crouse-Hinds: Eaton Crouse-Hinds series EYS conduit sealing fitting, Female, Copper-free aluminum, Vertical only, Group B rated, 1/2"
Product Name
Eaton Crouse-Hinds series EYS conduit sealing fitting
Catalog Number
EYS1 SA
Product Length/Depth
3.25 in
Product Height
2.25 in
Product Width
1 in
Product Weight
0.33 lb
UPC
782274275727
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
Sealing position
Vertical only
Gender
Female
Trade size
1/2"
Material
Copper-free aluminum
Special features
Group B rated
Crouse-Hinds series EYS and EZS Explosionproof Conduit Sealing Fittings catalog page
EYS and EZS Explosionproof Conduit Sealing Fittings UL certification
EYS and EZS Explosionproof Conduit Sealing Fittings UL certification
IF 287 - Conduit Sealing
Eaton Specification Sheet - EYS1 SA
Copper-free aluminum body minimizes weight and corrosion risk, improving field handling and long-term reliability while helping reduce installation fatigue and support equipment longevity in harsh environments. This translates to faster commissioning and lower maintenance costs for plants with frequent ingress challenges. The 1/2 inch trade size with a female configuration ensures seamless integration with standard conduits and fittings, simplifying supply chain and on-site logistics for panel builders and contractors. The vertical sealing position enhances seal integrity against vertical ingress and simplifies orientation during panel assembly, reducing seal retries and rework. Group B rated construction meets stringent explosion-protection criteria, delivering compliance confidence and lower risk of non-conformance in hazardous areas. The EYS series compatibility with Eaton Crouse-Hinds conduit sealing fittings ecosystem supports scalable installations, cross-compatibility with adjacent components, and simplified spare-part inventories. Installation is aided by clear labeling and standardized dimensions, which lowers training time and accelerates project timelines in volatile industrial settings. Overall, the EYS1 SA delivers measurable protection, uptime, and lifecycle cost advantages for facilities handling hazardous materials or dynamic process conditions.
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FAQs
Installation guidance for EYS1 SA emphasizes proper enclosure sealing orientation, vertical sealing position, and secure thread engagement to preserve the integrity of the hazardous-location rating. Use compatible Eaton Crouse-Hinds fittings and appropriate sealants as specified in IF 287 and the EYS/EZS catalog pages. Adhere to NEC/CEC requirements and local codes to maintain Class I/II/III, Division 1 and 2 compliance throughout setup.
Yes. The EYS1 SA is designed to work within the Eaton Crouse-Hinds EYS/EZS family, sharing standardized trade sizes and mounting interfaces. This compatibility simplifies stocking and enables scalable installations across panels and junctions in hazardous locations. Always verify catalog pages and installation instructions for correct mating components and torque specs.
The EYS1 SA is certified for use in Hazardous/Classified Locations under NEC/CEC standards, with classifications for Class I Division 1 and 2, Class II Division 1 and 2, and Class III. It features a Group B rating, and UL certification listings are available for related models. These certifications support compliance and reduce regulatory risk in industrial environments.
Vertical sealing fittings concentrate seal integrity at the top of a conduit entry, improving ingress protection against gravity-driven dust and moisture in tall enclosures or overhead installations. For hazardous locations, this orientation helps maintain a reliable seal under vibration and temperature cycling, supporting safer operation and reduced maintenance in refinery, chemical, and power generation settings.
Using the EYS1 SA reduces maintenance cycles by delivering a durable, corrosion-resistant seal with a copper-free aluminum body. This leads to fewer field reseals and rework, faster commissioning, and lower total cost of ownership in facilities with aggressive exposure to moisture, dust, or corrosive atmospheres. The compact 1/2 inch size also simplifies procurement and stock management.