Eaton Crouse-Hinds EYS71 Conduit Sealing Fitting - Group B
Part Number: EYS71
Quick Summary
The EYS71 conduit sealing fitting from Eaton Crouse-Hinds protects electrical enclosures in hazardous locations by providing a robust, reliable seal for 2-1/2 inch conduits. This accessory addresses the common pain point of ingress paths that compromise enclosure integrity when equipment is installed in explosive atmospheres. With vertical or horizontal sealing capability and a durable feraloy iron alloy/ductile iron construction, it delivers consistent performance across demanding environments. The product carries NEC/CEC compliance, UL certification for hazardous locations, and an area-classification rating of Hazardous/Classified Locations, giving you defensible evidence for safety audits. By standardizing on a sealed fitting, manufacturers reduce retrofit time and improve installation quality, especially in offshore, mining, and chemical processing facilities.
Product Information
Extended Description
EYS71 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EYS conduit sealing fitting, Female, Feraloy iron alloy and/or ductile iron, Vertical or horizontal, Group B rated, 2-1/2"
Product Name
Eaton Crouse-Hinds series EYS conduit sealing fitting
Catalog Number
EYS71
Product Length/Depth
7.5 in
Product Height
6 in
Product Width
3.5 in
Product Weight
7.86 lb
UPC
782274364964
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
2-1/2"
Material
Feraloy iron alloy Ductile iron
Special features
Group B rated
Eaton Crouse-Hinds EYS71 3D drawing
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 - EYS71
2-1/2 inch trade size with vertical or horizontal sealing provides installation flexibility and reduces seal-related misfits in existing conduit runs, improving field efficiency and lowering commissioning downtime. The feraloy iron alloy and ductile iron construction delivers rugged durability in harsh environments, translating to longer service life and lower maintenance costs in chemical plants and offshore facilities. Group B rated and NEC/CEC aligned design strengthens regulatory compliance and safety credibility for audits, while UL certification support minimizes project risk during procurement and commissioning. The EYS71 integrates smoothly with standard Crouse-Hinds conduit systems, enabling faster upgrades and easier stocking for maintenance teams. Installation advantages include clear orientation options and proven sealing performance at elevated temperatures and dusty or moist conditions, reducing risk of ingress-driven equipment failures.
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FAQs
Yes. The EYS71 is designed for a 2-1/2 inch trade size and supports vertical or horizontal sealing, making it compatible with standard conduit configurations used in hazardous locations. Its feraloy/ductile iron construction provides the ruggedness required for adverse environments, while meeting NEC/CEC requirements for hazardous-area installations.
The EYS71 carries NEC/CEC compliance, UL certifications for hazardous locations, and an area classification listing of Hazardous/Classified Locations. It is rated Group B and supports Class I, Division 1 and Division 2, Class II Division 1 and 2, and Class III environments, which helps streamline regulatory approvals and project documentation.
EYS71 provides a reliable seal in either orientation, reducing ingress paths that commonly cause equipment faults. Its sturdy feraloy/ductile iron build resists wear in harsh environments, lowering maintenance cycles. The product’s compatibility with standard Crouse-Hinds fittings accelerates installation, minimizes field errors, and supports uptime in facilities like refineries and offshore platforms.
Yes. The EYS71 explicitly supports sealing in both vertical and horizontal positions, ensuring consistent performance regardless of conduit routing. This flexibility simplifies retrofits and new installations in constrained spaces common to hazardous-area projects while maintaining compliance and seal integrity.
The EYS71 uses a combination of feraloy iron alloy and ductile iron, delivering high mechanical strength and corrosion resistance. This material choice enhances durability under chemical exposure, temperature variation, and dusty or humid conditions typically encountered in mining, chemical processing, and oil-and-gas facilities.