Eaton Crouse-Hinds ECLK421 Coupling - Class I, Division 1
Part Number: ECLK421
Quick Summary
Eaton Crouse-Hinds ECLK421 coupling is a 26.75 in flexible explosionproof conduit connector designed for hazardous locations in industrial facilities. This address common field challenges by providing a robust, vibration-resistant link in harsh environments where space and alignment can complicate installations. The product meets NEC/CEC standards with Class I, Division 1 ratings and UL certification, ensuring reliable performance in hazardous areas. For decision-makers, it offers a secure, compliant solution that reduces downtime and simplifies inspection workflows while delivering durable, long-term service in explosive atmospheres and other demanding industrial settings.
Product Information
Extended Description
ECLK421 Eaton Crouse-Hinds: Eaton Crouse-Hinds series ECLK coupling, 21" flexible length, Male connection one end, female connection one end, Forged brass, 1-1/4" trade size
Product Name
Eaton Crouse-Hinds series ECLK coupling
Catalog Number
ECLK421
Product Length/Depth
26.75 in
Product Height
2.94 in
Product Width
2.94 in
Product Weight
10.8 lb
UPC
782274262802
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class II, Division 1 Class III
Gender
Male connection one end, female connection one end
Flexible length
21"
Trade size
1-1/4"
Material
Forged brass
Crouse-Hinds series EC Explosionproof Couplings catalog page
EC Explosionproof Couplings UL certification
EC Explosionproof Couplings UL certification
Eaton Specification Sheet - ECLK421
Feature → Business Impact → Application: Forged brass construction delivers corrosion resistance and mechanical strength, improving long-term reliability in corrosive environments and reducing maintenance cycles in offshore and chemical processing facilities. This supports cost containment and asset integrity over the life of the installation, especially in hazardous area conduit networks. Feature → Business Impact → Application: 26.75 inch overall length with a 21 inch flexible section provides significant installation tolerance, enabling easier alignment and fewer field bends, which shortens commissioning time and minimizes misalignment failures in tight spaces such as plant floors and skids. Feature → Business Impact → Application: 1-1/4 inch trade size and male/female end configuration streamline mating with standard conduit runs, reducing part counts and simplifying inventory management for procurement teams while ensuring compliant, leak-free connections. Feature → Business Impact → Application: NEC/CEC compliance with Class I Division 1 ratings and UL certifications give operators confidence in regulatory adherence, accelerating approvals during audits and reducing the risk of nonconformance during installation and maintenance. Feature → Business Impact → Application: Lightweight yet rugged design (10.8 lb) supports easier handling by maintenance crews and contractors, improving on-site productivity and reducing the likelihood of injury or mishandling during installation of explosionproof couplings in hazardous areas.
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FAQs
The ECLK421 is a 26.75 inch long explosionproof coupling from Eaton Crouse-Hinds designed to join conduit in hazardous or classified locations. It features a 1-1/4 inch trade size and forged brass construction, delivering a flexible, secure connection for NEC/CEC-compliant installations in Class I Division 1 environments.
Key specifications include a 26.75 inch product length, 2.94 inch width and height, 10.8 pound weight, 1-1/4 inch trade size, forged brass material, and a 21 inch flexible section between male and female ends. It is rated for Hazardous/Classified Locations under NEC/CEC and designed for explosionproof service.
Yes. The ECLK421 carries NEC hazard ratings including Class I Division 1 and is UL-certified for use in hazardous locations. Additional certifications cover Canada, and Eaton provides UL listings and specification sheets to support compliance during audits and regulatory reviews.
Yes. The ECLK421 is a 1-1/4 inch trade size coupling with a total length of 26.75 inches and a 21 inch flexible section. This combination enables easier alignment in tight conduit runs while preserving a sealed, explosionproof connection in hazardous-area installations.
ECLK421 improves efficiency through its forged brass construction for durability, a long 26.75 inch overall length with a 21 inch flexible segment for easier alignment, and the male/female end configuration that reduces hardware counts. Its NEC/CEC Class I Division 1 compliance and UL certifications streamline regulatory approvals and commissioning in hazardous environments.