Eaton Crouse-Hinds ECLK621 Coupling - Class I, Division 1
Part Number: ECLK621
Quick Summary
Eaton Crouse-Hinds ECLK621 coupling is a rugged explosion-proof conduit connection used in hazardous area installations. Facing moisture ingress, dust buildup, and misalignment in Class I, Division 1 sites, maintenance can be costly and risky. This device meets NEC/CEC standards and carries hazardous-location ratings including Class I, Division 1; UL-certified explosion-proof versions are available for strict regulatory compliance. By combining forged brass construction with a 2 in trade size and a 27.5 in overall length, along with a 21 in flexible section, it delivers reliable, code-compliant terminations while reducing downtime and field-adjustment needs.
Product Information
Extended Description
ECLK621 Eaton Crouse-Hinds: 2 X 21 DIV 1 FLEX CPLG MALE-FEMALE
Product Name
Eaton Crouse-Hinds series ECLK coupling
Catalog Number
ECLK621
Product Length/Depth
27.5 in
Product Height
4.25 in
Product Width
4.25 in
Product Weight
22.41 lb
UPC
662283118553
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
2"
Material
Forged brass
Crouse-Hinds series EC Explosionproof Couplings catalog page
EC Explosionproof Couplings UL certification
EC Explosionproof Couplings UL certification
Eaton Specification Sheet - ECLK621
Feature: Flexible 21 inch section accommodates offset runs and vibration mitigation, reducing strain on enclosures and conduit fittings. Business impact: improves installation reliability and lowers field rework in tight plant layouts. Application: suitable for control cabinets and equipment rooms in chemical plants and offshore facilities. Feature: 2 inch trade size aligns with standard conduit fittings, ensuring fit and performance with minimal modification. Benefit: minimizes procurement delays and compatibility issues during upgrades. Application: retrofit projects and new builds across hazardous locations. Feature: Male-female end configuration simplifies field assembly and disassembly without specialized tools. Benefit: reduces installation time and maintenance costs. Application: end-to-end conduit connections in Class I, Division 1 zones. Feature: Forged brass material offers corrosion resistance and robust mechanical strength. Benefit: extends service life in harsh environments and lowers replacement frequency. Application: chemical processing, refineries, and marine installations. Feature: Overall dimensions and weight enable reliable mounting in compact spaces. Benefit: predictable fit in tight panels and racks. Application: panel-building and equipment skids. Certifications include NEC/CEC compliance and UL explosion-proof labeling, supporting safer, compliant installations across industrial facilities.
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FAQs
Install following NEC/CEC requirements for hazardous locations. Ensure mating ends are clean, align male and female connectors, and secure with appropriate fittings to preserve the explosion-proof seal. Verify enclosure integrity and gasket seating, avoiding forced connections. Adhere to UL/CSA certifications for safe operation and regulatory compliance in hazardous zones.
Trade size is 2 in. The flexible section is 21 in long, with an overall length of 27.5 in. The assembly is 4.25 in wide and 4.25 in high, weighs 22.41 lb, and uses forged brass. It features male one end and female one end connections. It conforms to NEC/CEC standards and Class I, Division 1 hazardous-location ratings.
Yes. The ECLK621 is designed for hazardous locations and employs forged brass construction for resistance to corrosive marine environments. Its Class I, Division 1 rating and NEC/CEC compliance make it appropriate for offshore platforms, chemical plants, and other demanding marine-related applications.
The ECLK621 aligns with NEC/CEC standards and carries a Class I, Division 1 hazardous-location rating. UL certifications for explosion-proof conduit fittings are available, supporting compliance for hazardous-location installations in North America and Canada.
The forged-brass construction provides corrosion resistance and durable performance, reducing maintenance needs. The rugged explosion-proof design minimizes field failures, shortening downtime during maintenance. Overall, this translates to lower lifecycle costs and improved uptime for hazardous-location conduit systems.