Eaton EYS21 SS conduit sealing fitting - Hazardous Locations
Part Number: EYS21 SS
Quick Summary
The EYS conduit sealing fitting seals 3/4" conduits in hazardous locations, protecting joints from dust, gas ingress, and moisture. Customers often struggle with fit, corrosion resistance, and compliance when selecting fittings for explosive environments. This model meets NEC/CEC requirements and supports Class I Division 1 and 2, Class II Division 1, and Class III area classifications, ensuring safety and regulatory alignment. Using this stainless steel conduit sealing solution reduces downtime and maintenance costs, while simplifying installation in demanding sites. For engineers, it means fewer callouts for seals, fewer leak incidents, and faster panel builds. Its vertical or horizontal sealing position supports flexible installation in confined spaces.
Product Information
Extended Description
EYS21 SS Eaton Crouse-Hinds: Eaton Crouse-Hinds series EYS conduit sealing fitting, Female, Stainless steel, Vertical or horizontal, 3/4"
Product Name
Eaton Crouse-Hinds series EYS conduit sealing fitting
Catalog Number
EYS21 SS
Product Length/Depth
1.95 in
Product Height
3.63 in
Product Width
1.5 in
Product Weight
1 lb
UPC
662276574144
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 III
Sealing position
Vertical or horizontal
Gender
Female
Trade size
3/4"
Material
Stainless steel
Crouse-Hinds stainless steel conduit, cable and wire management brochure
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 1752 - EYS Stainless Steel Fittings
IF 1752 - EYS Stainless Steel Fittings
Eaton Specification Sheet - EYS21 SS
Feature: Stainless steel construction delivers superior corrosion resistance in harsh environments. Benefit: Extends service life and lowers maintenance costs in chemical, oil & gas, and marine settings. Application: Ideal for stainless steel conduit fittings in offshore platforms and chemical plants. Feature: 3/4" trade size provides a standard, compatible interface with common conduit systems. Benefit: Reduces rework and inventory complexity, speeding up panel builds and field installs. Application: Motor control centers, control panels, and field junctions. Feature: Sealing position works vertical or horizontal. Benefit: Installation flexibility minimizes space constraints and simplifies alignment during retrofits. Application: Enclosures with limited access or vertical runs. Feature: Female connector interface ensures correct mating with male adapters. Benefit: Lowers risk of cross-threading and seal loss, increasing first-pass integrity. Application: Typical junction boxes and enclosures in hazardous areas. Feature: NEC/CEC compliance with Class I, Division 1 and 2, Class II Division 1, and Class III ratings. Benefit: Compliance reduces regulatory risk and enables safe operation in hazardous locations. Application: Plants requiring explosion-protected fittings for Zone 1/2 and Zone 0 environments. Feature: Comprehensive documentation and installation guidance, including IF 1752 materials. Benefit: Streamlined procurement and faster, safer installation. Application: System integrators coordinating fitment with existing Eaton Crouse-Hinds products.
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FAQs
The EYS21 SS is designed to mate with standard 3/4 inch conduits and is rated for Hazardous/Classified Locations under NEC/CEC. The stainless steel body provides corrosion resistance, while vertical or horizontal sealing simplifies installation in tight or awkward spaces. Refer to IF 1752 installation sheets for step by step guidance and ensure enclosure mating aligns with Class I, Division 1 or 2 requirements.
This fitting carries NEC/CEC compliance with hazardous-location ratings, including Class I, Division 1 and 2, Class II, Division 1, and Class III. These certifications support area classifications for Hazardous/ Classified Locations, enabling safe operation in explosion-prone environments. Always verify local compliance requirements and inspection criteria for your specific installation.
Vertical or horizontal sealing provides installation flexibility without compromising the seal integrity. In tight spaces or overhead positions, the ability to orient the fitting reduces assembly time and misalignment risk. For field installs, this adaptability minimizes rework and aligns with existing conduit layouts in industrial control panels.
Eaton provides installation instructions (IF 1752) and technical datasheets, including the EYS21 SS specification sheet and catalog pages. Access to these documents supports correct sizing, mating, and torque expectations, ensuring reliable seals and compliance during commissioning and routine maintenance.
The stainless steel construction delivers long life in corrosive environments, reducing maintenance cycles and replacement costs. Compliance with NEC/CEC hazardous-location ratings lowers regulatory risk and minimizes downtime due to seal failures. In practice, these factors translate to lower total cost of ownership and faster project delivery in oil & gas, chemical, and mining installations.