Eaton Crouse-Hinds EYSX51 Sealing Fitting - Group B rated
Part Number: EYSX51
Quick Summary
EYSX51 Expanded Fill Sealing Fitting delivers reliable conduit sealing for hazardous locations in industrial facilities. Unsealed or undersized fittings can invite moisture ingress and ignition risks, driving downtime and maintenance costs. This product carries NEC/CEC compliance with Group B rating and hazardous-location allowances, including Class I, Division 1 and 2; Class II, Division 1 and 2; Class III. Designed for 1-1/2 inch trade size, vertical or horizontal sealing, and ferrous material options, it streamlines installation while maintaining safety and compliance. For procurement teams, this means faster, compliant installs with reduced risk and predictable maintenance across plants.
Product Information
Extended Description
EYSX51 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EYSX expanded fill sealing fitting, Female, Feraloy iron alloy and/or ductile iron, Vertical or horizontal, Group B rated, 1-1/2"
Product Name
Eaton Crouse-Hinds series EYSX expanded fill sealing fitting
Catalog Number
EYSX51
Product Length/Depth
3 in
Product Height
6.25 in
Product Width
3 in
Product Weight
6.6 lb
UPC
782274943145
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
Gender
Female
Trade size
1-1/2"
Sealing position
Vertical or horizontal
Material
Feraloy iron alloy Ductile iron
Special features
Group B rated
Crouse-Hinds series EYSX Expanded Fill Explosionproof Conduit Sealing Fittings catalog page
EYSX Expanded Fill Explosionproof Conduit Sealing Fittings UL certification
EYSX Expanded Fill Explosionproof Conduit Sealing Fittings UL certification
IF 288 - EYSX and EYDX Expanded Sealing Fitting
Eaton Specification Sheet - EYSX51
Feature: 1-1/2 inch trade size provides direct compatibility with common conduit runs used in industrial plants. Business Impact: Simplifies procurement and reduces field adapters, cutting install time and potential leak points. Application: Suitable for standard explosion-proof conduit to maintain a secure seal in hazardous locations. Feature: Feraloy iron alloy and/or ductile iron construction delivers rugged durability. Business Impact: Improves impact resistance and long-term sealing performance in tough environments, lowering replacement costs. Application: Ideal for oil, gas, chemical processing, and mining facilities where equipment endures vibration and harsh chemicals. Feature: Vertical or horizontal sealing position supports flexible installation. Business Impact: Enables quick orientation choices to match existing conduit layouts, reducing misalignment and commissioning delays. Application: Works in ceiling, wall, or equipment-mounted configurations across hazardous areas. Feature: Group B rated with NEC/CEC compliance ensures regulatory alignment. Business Impact: Simplifies audits and ensures safe operation under multiple standards, lowering compliance risk. Application: Critical for Class I, II, and III locations and area classifications in a multi-asset plant. Feature: 3 in length, 3 in width, 6.25 in height, and 6.6 lb weight provide manageable handling with robust protection. Business Impact: Easier handling during installation and stable surface engagement, reducing field damage and rework. Application: Suited for confined spaces where weight and size matter, while maintaining rugged enclosure integrity.
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FAQs
EYSX51 is a female, 1-1/2 inch trade size sealing fitting designed for vertical or horizontal sealing. Use standard ferrous conduit interfaces and follow the manufacturer’s torque and seating guidelines. Verify compatibility with NEC/CEC requirements and UL listings, and consult the IF 288 instruction sheet for installation steps to ensure a robust, code-compliant seal in hazardous locations.
The EYSX51 supports NEC/CEC compliance with hazardous-location classifications, including Class I, Division 1 and 2; Class II, Division 1 and 2; Class III, and Area classification of Hazardous/Classified Locations. It carries UL certifications for use in these environments and is specified in Eaton’s catalog pages and datasheets to aid regulatory audits and cross-referencing.
Yes. The sealing position for the EYSX51 is vertical or horizontal, allowing installation to match existing conduit routing without compromising seal integrity. This flexibility reduces field modifications, accelerates commissioning, and supports safer layouts in tight or irregular plant spaces.
Chemical plants, oil and gas facilities, and other installations in Class I, II, and III hazardous locations benefit most. The expanded-fill design helps prevent moisture ingress and ignition sources, supporting regulatory compliance and minimizing explosion-related risk while maintaining reliable conduit sealing in corrosive or vibration-prone environments.
Key documents include IF 288 (EYSX and EYDX Expanded Sealing Fittings instructions), the Crouse-Hinds EYSX catalog pages, and the EYSX51 specification sheet. These resources provide mounting guidelines, material specs (Feraloy iron alloy or ductile iron), and approvals for Class I–III locations, helping with QA and audits.