Eaton Crouse-Hinds ECLK321 S758 Coupling - NEC/CEC Hazardous
Part Number: ECLK321 S758
Quick Summary
The Eaton Crouse-Hinds ECLK321 S758 coupling is a 1 in trade-size, flexible connection designed for hazardous-area conduit systems in industrial facilities. Engineers face challenges with rigid fittings that crack under vibration, misalign during long runs, or complicate maintenance in harsh environments. This connector complies with NEC/CEC standards and is rated for Hazardous/Classified Locations, including Class I, Division 1, Class II, Division 1, and Class III service, with Canadian certification documentation available. By selecting the ECLK321 S758, you gain a robust sealing solution, compatibility with typical 1 in conduit systems, and straightforward installation that supports safer operations and reduced downtime across process and energy sectors.
Product Information
Extended Description
ECLK321 S758 Eaton Crouse-Hinds: Eaton Crouse-Hinds series ECLK coupling, 21" flexible length, Male connection one end, female connection one end, Forged brass, Flexible PVC protective coating, 1" trade size
Product Name
Eaton Crouse-Hinds series ECLK coupling
Catalog Number
ECLK321 S758
Product Length/Depth
26 in
Product Height
2.13 in
Product Width
2.13 in
Product Weight
0.1 lb
UPC
782274979311
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"
Material
Forged brass
Special features
Flexible PVC protective coating
Crouse-Hinds series EC Explosionproof Couplings catalog page
EC Explosionproof Couplings Canadian certification
EC Explosionproof Couplings Canadian certification
Eaton Specification Sheet - ECLK321 S758
Feature: Flexible length and overall size; Business Impact: Enables long runs with fewer joints, reducing installation time and potential leakage points; Application: Hazardous locations where conduit runs exceed short spans and require adaptable routing. Feature: Forged brass material; Business Impact: Delivers enhanced mechanical strength and corrosion resistance for hostile environments; Application: Industrial plants with exposure to moisture, chemicals, or vibration. Feature: Flexible PVC protective coating; Business Impact: Provides environmental protection and abrasion resistance, extending service life and reducing maintenance cycles; Application: Outdoor or damp installations common in hazardous-area facilities. Feature: Gendered ends (Male on one end, Female on the other); Business Impact: Simplifies field assembly and compatibility with standard EC explosionproof components; Application: Retrofit or new installations using existing Eaton Crouse-Hinds couplings. Feature: Trade size 1" and 21" flexible length within a 26" overall profile; Business Impact: Covers substantial distance with fewer connectors, lowering inventory and labor costs; Application: Long conduit runs in process lines or offshore installations. Feature: Certifications and compliance (NEC/CEC, Class I, II, III in hazardous locations); Business Impact: Reduces regulatory risk and accelerates approvals for plant commissioning; Application: Projects requiring formal hazard-location certification documentation and cross-border usage. Feature: Lightweight design (0.1 lb) and easy handling; Business Impact: Improves on-site ergonomics and reduces installation time; Application: Field installations and maintenance operations where weight savings matter.
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FAQs
The ECLK321 S758 is a 1 in trade-size coupling with male one end and female the other, designed to mate with Eaton Crouse-Hinds EC explosionproof fittings. Its 26 in overall length and 21 in flexible segment support long runs, while its forged brass construction and PVC coating provide robust protection in hazardous areas. Compatibility with standard EC explosionproof components minimizes rework and simplifies field installation.
Yes. The ECLK321 S758 is rated for Hazardous/Classified Locations and complies with NEC/CEC standards, including Class I, Division 1 (as well as Class II, Division 1 and Class III). This makes it appropriate for high-risk environments found in chemical plants, oil and gas facilities, and other industrial settings requiring explosionproof conduit connections.
Plan for proper mating of the male and female ends, ensure a compatible 1 in trade-size conduit system, and account for the 26 in overall length with a 21 in flexible portion. The flexible PVC coating aids protection in damp areas, and the lightweight 0.1 lb design reduces handling effort during field assembly. Check local codes for Canadian certification documentation if cross-border use is required.
Available documentation includes the Crouse-Hinds EC explosionproof couplings catalog page, Canadian certification references, and the Eaton Specification Sheet for ECLK321 S758. These resources help validate NEC/CEC compliance, hazardous location ratings, and installation guidance for procurement and commissioning.
Key specs include 1" trade size, 26" length with a 21" flexible section, 2.13" height and width, 0.1 lb weight, forged brass material, and a flexible PVC protective coating. The product is designed for hazardous locations and supports Class I, II, III with NEC/CEC compliance, ensuring compactness and ease of integration into long conduit runs.