Eaton Crouse-Hinds EYS4 SA Sealing Fitting - Explosionproof
Part Number: EYS4 SA
Quick Summary
The EYS4 SA conduit sealing fitting from Eaton Crouse-Hinds provides explosionproof sealing for hazardous locations where electrical enclosures must prevent ingress. This female fitting fits 1-1/4\" trade size and uses copper-free aluminum construction for reliable service in severe environments. Aimed at engineers and maintenance teams, it helps reduce ignition sources and downtime by delivering robust ingress protection in Class I, II, and III locations, including Division 1 and 2. With NEC/CEC compliance and UL certifications, it integrates with Crouse-Hinds EYS/EZS lines and supports vertical or horizontal sealing positions. The combination of compact form, easy installation, and proven material performance delivers business value through safety, uptime, and lifecycle cost reduction.
Product Information
Extended Description
EYS4 SA Eaton Crouse-Hinds: Eaton Crouse-Hinds series EYS conduit sealing fitting, Female, Copper-free aluminum, Vertical or horizontal, 1-1/4"
Product Name
Eaton Crouse-Hinds series EYS conduit sealing fitting
Catalog Number
EYS4 SA
Product Length/Depth
5 in
Product Height
3 in
Product Width
2 in
Product Weight
0.91 lb
UPC
782274275758
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 or horizontal
Gender
Female
Trade size
1-1/4"
Material
Copper-free aluminum
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 - EYS4 SA
Copper-free aluminum construction reduces long-term corrosion risk and permits lighter handling during installation. This feature translates into lower maintenance costs and longer service life in aggressive environments such as chemical plants and outdoor installations. The EYS4 SA also maintains full mechanical strength at high operating temperatures, supporting reliable sealing over the product lifecycle. Sealing position supports vertical or horizontal mounting, offering installation flexibility in tight spaces and complex cable runs. Engineers can align conduit entries to existing glands without rework, reducing project timelines and field labor. This multi-orientation capability is especially valuable for retrofit projects and retrofit jobs on legacy equipment. 1-1/4\" trade size ensures compatibility with standard conduit systems, enabling seamless integration with common feeders and equipment. Fewer adapter pieces lower inventory costs, simplify procurement, and accelerate installation. The copper-free aluminum body provides a durable, lightweight alternative to traditional materials in hazardous locations. Compliance with NEC/CEC and UL listings delivers risk reduction and regulatory confidence. The EYS4 SA is rated for Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III environments, aligning with global safety standards for hazardous locations. This reduces the engineering effort required to certify equipment for multinational projects. Installation instructions IF 287 provide clear guidance for sealing and mounting, reducing missteps during field work. Together with the EYS/EZS family, the part offers a streamlined supply chain and predictable performance. Real-world feedback from industrial installers confirms smoother commissioning and fewer callbacks related to conduit sealing.
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FAQs
The EYS4 SA is designed for a 1-1/4\" trade size female connection and copper-free aluminum housing, enabling straightforward integration with standard conduit systems. Installation follows Eaton's IF 287 guidance, ensuring proper sealing orientation and robust engagement with compatible conduits to minimize commissioning time and field rework.
The EYS4 SA is rated for Hazardous/Classified Locations under NEC/CEC standards with NEC hazardous ratings including Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III. UL certifications further validate its explosionproof performance for both US and Canada markets, supporting compliant operation in demanding industrial environments.
Yes. The product supports vertical or horizontal sealing positions, allowing flexible orientation to suit conduit entry points and space constraints. This adaptability reduces installation time and ensures reliable sealing in retrofit or new-build projects, especially where existing equipment orientation limits traditional fittings.
EYS4 SA complies with NEC/CEC standards for hazardous locations and carries UL certifications for explosionproof conduit fittings. UL listing pages document conformance for US and Canadian markets, while relocation within Eaton’s EYS/EZS family ensures consistency with other certified components in the same system.
The copper-free aluminum body provides corrosion resistance and lighter weight, contributing to lower maintenance and easier handling. With durable sealing, predictable lifecycle performance, and minimal required field servicing, operators often realize reduced downtime and extended service intervals, translating to lower total cost of ownership over the equipment’s operational life.