Eaton Crouse-Hinds EYS1 conduit sealing fitting - Group B
Part Number: EYS1
Quick Summary
The Eaton Crouse-Hinds EYS1 conduit sealing fitting protects electrical enclosures in hazardous locations by sealing conduits. A common pain point is moisture ingress and corrosion in harsh environments, leading to maintenance delays and unexpected downtime. This part carries NEC/CEC compliance and UL listings for hazardous locations, including Class I, Division 1 and 2 (as well as Class II and III ratings) and a Group B rating. For procurement teams, it offers a rugged 1/2 inch sealing solution with vertical-only orientation that reduces project risk and supports fast, compliant installation while minimizing lifecycle costs.
Product Information
Extended Description
EYS1 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EYS conduit sealing fitting, Female, Feraloy iron alloy and/or ductile iron, Vertical only, Group B rated, 1/2"
Product Name
Eaton Crouse-Hinds series EYS conduit sealing fitting
Catalog Number
EYS1
Product Length/Depth
1.25 in
Product Height
3.28 in
Product Width
1.25 in
Product Weight
0.9 lb
UPC
782274377407
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
Ductile iron Feraloy iron alloy
Special features
Group B rated
Eaton Crouse-Hinds EYS1 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 - EYS1
Feature: Compact 1/2 inch trade-size, female connection delivers a space-saving seal compatible with standard conduit runs. Business Impact: reduces bill of materials and field modification time, speeding installation in tight panels. Application: ideal for upright mounting in control cabinets and hazardous-location enclosures where space is at a premium. Feature: Ductile iron and Feraloy iron alloy construction provides rugged durability and corrosion resistance. Business Impact: extends service life in chemical plants, oil and gas facilities, and wastewater plants, lowering replacement costs and downtime. Application: suited to vertical installations near conduit entries where mechanical stress is common. Feature: Vertical-only sealing position ensures consistent seal compression and predictable venting behavior. Business Impact: reduces re-seals and leaks, improving enclosure integrity on commission. Application: supports reliable performance in vertical conduit runs typical of many industrial installations. Feature: Group B rating with NEC/CEC compliance enhances regulatory assurance. Business Impact: accelerates project approvals and simplifies audits while meeting hazardous-location requirements. Application: appropriate for Class I, Division 1 and 2, Class II and III environments across multiple regions. Feature: Moderate weight and compact footprint (0.9 lb; 1.25 in width/depth; 3.28 in height) ease handling and field installation. Business Impact: lowers logistics costs and enables faster mounting inside crowded enclosures. Application: suitable for retrofit installations and new builds where space constraints exist. Feature: Availability of CAD drawings, catalogs, and certifications simplifies engineering workflows. Business Impact: shortens design cycles, reduces errors, and supports compliance documentation. Application: engineers can validate fit using the 3D CAD package and catalog pages when planning conduit sealing fittings for hazardous locations.
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FAQs
The EYS1 is a 1/2 inch trade-size, female conduit sealing fitting designed for vertical installations. Installers should align the female port with the conduit run, ensure correct sealing engagement, and secure with standard mounting hardware suitable for ductile iron fittings. Verify vertical orientation to maintain seal integrity and meet enclosure protection requirements in hazardous locations.
EYS1 carries NEC/CEC standards alignment and UL certifications for hazardous locations, including Class I, Division 1 and Division 2 ratings, and Class II/III variants. These certifications support regulatory compliance, enable safer installation in chemical plants and refineries, and simplify audit trails by providing documented hazard-class approvals and material durability claims.
Yes, the EYS1 is designed for hazardous locations and includes NEC hazardous ratings for Class I, Division 1 (as well as Division 2). It is manufactured from ductile iron and/or Feraloy iron alloy, delivering robust mechanical strength, good impact resistance, and corrosion protection suitable for harsh industrial settings.
The EYS1 seals against moisture, dust, and gas ingress, reducing enclosure-related leaks and maintenance cycles. Its durable materials and vertical-only design minimize downtime and replacement costs, while NEC/CEC compliance streamlines regulatory reporting. Over the asset lifecycle, this translates to improved uptime, safer operation, and lower total cost of ownership for hazardous-area enclosures.
EYS1 is designed for standard 1/2" trade-size conduit systems and is compatible with Crouse-Hinds sealing fittings where vertical orientation is specified. Its material and sealing mechanics complement other explosion-proof conduit sealing fittings in the EYS/EZS family, enabling consistent performance across a project while maintaining compliance in hazardous-location installations.