Eaton EYS21 SA Conduit Sealing Fitting - Group B Rated
Part Number: EYS21 SA
Quick Summary
EYS conduit sealing fitting from Eaton Crouse-Hinds provides reliable sealing for hazardous-location conduit runs. Engineers and procurement teams struggle with ensuring compliant, leak-free seals in Class I and II environments under harsh conditions. NEC/CEC compliance with UL certifications for hazardous locations, plus a Group B rating, support safer installs and faster commissioning. Designed for 3/4" conduit in vertical or horizontal orientations, it also reduces inventory with a copper-free aluminum body. Together, this makes risk-managed sealing more predictable for electrical and instrumentation projects, while supporting NEC/CEC-driven procurement choices. Its reinforced sealing performance aligns with maintenance schedules in offshore platforms and chemical plants.
Product Information
Extended Description
EYS21 SA Eaton Crouse-Hinds: Eaton Crouse-Hinds series EYS conduit sealing fitting, Female, Copper-free aluminum, Vertical or horizontal, Group B rated, 3/4"
Product Name
Eaton Crouse-Hinds series EYS conduit sealing fitting
Catalog Number
EYS21 SA
Product Length/Depth
1.5 in
Product Height
3.69 in
Product Width
1.5 in
Product Weight
0.39 lb
UPC
782274275840
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
3/4"
Material
Copper-free aluminum
Special features
Group B rated
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 - EYS21 SA
Feature copper-free aluminum construction delivers excellent corrosion resistance, extending equipment life in aggressive environments and lowering replacement costs. Business Impact this translates to longer intervals between maintenance cycles and reduced total cost of ownership, particularly in chemical plants, refineries, and offshore facilities. Application use this material in arduous locations where exposure to moisture and chemicals is common. Feature vertical or horizontal sealing position provides installation flexibility, enabling fast retrofits and simplified stocking of a single fitting for multiple orientations. Business Impact reduces field time and minimizes the risk of improper orientation during onboarding, improving project timelines. Application ideal for new builds and upgrades in hazardous locations. Feature Group B rating and NEC/CEC compliance ensures regulatory acceptance and safer projects. Business Impact supports faster permits, lower audit risk, and easier supplier qualification. Application suitable for Class I, II, and III environments in oil, gas, mining, and processing sectors. Feature 3/4" trade size and female configuration matches common conduit systems, reducing compatibility concerns. Business Impact streamlines procurement and field servicing. Application widely used in general purpose hazardous-location installations. Feature UL certifications and catalog documentation reinforce product reliability and technical support, enabling confident design-in and maintenance planning. Business Impact improves lifecycle planning and reduces unexpected downtime. Application Ideal for engineers seeking proven, standards-aligned conduit sealing solutions.
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FAQs
For hazardous locations, verify correct orientation (vertical or horizontal) before torqueing, ensure the 3/4" conduit matches the trade size, and follow the IF 287 installation guidance. The copper-free aluminum construction helps resist corrosion in harsh environments, while the female connection simplifies field termination and reduces potential leak paths.
Group B rating indicates suitability for certain hazardous atmospheres within Class I and II locations. This rating, coupled with NEC/CEC compliance and UL certifications, supports regulatory approvals, reduces risk during commissioning, and helps standardize supplier qualification and maintenance planning across facilities.
Yes. The sealing position is specified as vertical or horizontal, giving installers flexibility to fit existing layouts or design constraints. This versatility reduces the need for multiple seals and streamlines installation in space-constrained electrical rooms or field installations.
The product adheres to NEC/CEC standards and carries UL certifications for use in hazardous locations. It is rated for Class I, Division 1 and 2, Class II Division 1 and 2, and Class III, aligning with global safety and compliance requirements for hazardous environments.
The EYS21 SA reduces maintenance downtime through durable copper-free aluminum construction and a robust sealing design, lowering replacement costs and field service time. Its proven compliance simplifies audits and procurement, delivering a faster time-to-start for projects in hazardous locations and improved lifecycle cost over traditional fittings.