Eaton ECLK633 Explosionproof Coupling - Class I Div 1
Part Number: ECLK633
Quick Summary
The ECLK633 explosionproof coupling is designed to securely join conduit runs in hazardous locations. Engineers often face field routing challenges, incompatible fittings, and lengthy certification delays that slow projects. This coupling carries NEC/CEC standards and is rated for Hazardous/Classified Locations, including Class I, Division 1, with UL certifications to support USA and Canada. By leveraging its forged brass construction, 2 in trade size, and a 33 in flexible segment, the solution delivers reliable sealing, reduces installation time, and cuts ongoing maintenance costs. For procurement teams, it translates to fewer part substitutions and faster commissioning, helping to keep projects on schedule and within budget.
Product Information
Extended Description
ECLK633 Eaton Crouse-Hinds: 2 X 33 DIV 1 FLEX CPLG MALE-FEMALE
Product Name
Eaton Crouse-Hinds series ECLK coupling
Catalog Number
ECLK633
Product Length/Depth
39.5 in
Product Height
4.25 in
Product Width
4.25 in
Product Weight
28.79 lb
UPC
662283118690
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
33"
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 - ECLK633
Feature: Flexible 33 inch length with two ends (male on one side, female on the other) enables quick routing and minimizes the need for extra fittings. Business Impact: Reduces field labor time and inventory complexity, accelerating project timelines in hazardous-area installations. Application: Ideal for industrial facilities with tight conduit routing and space constraints where flexibility matters. Feature: 2 inch trade size with male-female connections supports direct compatibility with standard conduit systems. Business Impact: Simplifies procurement and field assembly, lowering part mismatch risk and rework. Application: Suitable for new builds and retrofits in hazardous locations requiring reliable, ready-to-install fittings. Feature: Forged brass construction provides rugged durability and corrosion resistance. Business Impact: Prolongs service life in aggressive environments, reducing replacement costs and downtime. Application: Marine and industrial settings where exposure to moisture and chemical risks is high. Feature: NEC/CEC certifications and UL listings underpin compliance with hazardous-location requirements. Business Impact: Streamlines audits and regulatory approvals, reducing project risk and delays. Application: Critical for safety-critical installations in factories and offshore equipment. Feature: Overall dimensions and weight (39.5 in length, 4.25 in height/width, 28.79 lb) support predictable handling and installation planning. Business Impact: Improves site logistics, crane/rigging planning, and mounting confidence. Application: Large-diameter conduit terminations where providers must plan for weight and clearance. Feature: Documentation and specification support including the Eaton catalog page and UL certification reports. Business Impact: Accelerates design validation and procurement cycles. Application: Engineering reviews and compliance documentation for hazardous-area projects.
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FAQs
Begin with verifying the 2 in trade size and ensuring both ends are properly identified as male and female. Align the conduit runs, then connect the two ends to form a sealed, explosionproof joint. Use appropriate torque and locknut procedures per the Eaton specification sheet, and confirm compliance with NEC/CEC Class I, Division 1 requirements during commissioning.
ECLK633 carries NEC/CEC standards for hazardous locations and Class I, Division 1 ratings, ensuring safe operation in explosive atmospheres. It is UL certified for use in USA and Canada, and is designed for Hazardous/Classified Locations, reducing regulatory risk and accelerating inspections and audits on project handover.
Yes. The coupling uses forged brass construction, which offers strong durability and corrosion resistance appropriate for marine and other harsh environments. Its explosionproof design also helps protect personnel and equipment when exposed to moisture, salts, and chemical vapors typical of marine facilities.
Schedule periodic visual inspections for seals and joints, verify that connections remain tight per spec, and check for any signs of wear or corrosion on the brass components. Replace gaskets or seals if present in your installation and re-verify compatibility with Class I, Division 1 requirements after maintenance work.
ECLK633 is designed for 2 inch trade-size conduit with male and female ends, plus a 33 inch flexible segment to ease routing. Its 39.5 inch overall length and 28.79 lb weight should be accounted for in planning, rigging, and mounting to ensure safe handling and proper clearance in installation zones.