Eaton ECLK433 Explosionproof Conduit Coupling - Class I Div 1

Part Number: ECLK433
Manufacturer
Eaton Crouse-Hinds
Part number
ECLK433

Quick Summary

The Eaton Crouse-Hinds ECLK433 explosionproof conduit coupling is built for hazardous-location wiring. Contractors often struggle with fittings that withstand corrosive atmospheres, moisture, and strict NEC/CEC certifications. It carries NEC/CEC certifications and Class I, Division 1 (as well as Class II Division 1 and Class III) ratings, ensuring safe operation in hazardous and classified locations. Built with forged brass and a 1-1/4 inch trade size, it offers installation-ready reliability for industrial automation and electrical distribution in challenging environments. This translates to fewer field faults, faster commissioning, and predictable performance under extreme temperatures and moisture exposure, supporting uptime and safety.

Product Information

Extended Description

ECLK433 Eaton Crouse-Hinds: 1 1/4 X 33 DIV 1 FLEX CPLG MALE-FEMALE
Product Name
Eaton Crouse-Hinds series ECLK coupling
Catalog Number
ECLK433
Product Length/Depth
38.75 in
Product Height
2.94 in
Product Width
2.94 in
Product Weight
15.27 lb
UPC
782274263052
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
1-1/4"
Material
Forged brass
Forged brass construction provides exceptional durability and corrosion resistance in chemical plants, offshore facilities, and other harsh settings. This material choice minimizes maintenance cycles and replacement costs while withstanding frequent thermal cycling and moisture exposure. In demanding installations, reliability translates to fewer shutdowns and safer operation. The 1-1/4 inch trade size aligns with common conduit systems used in automation projects. This compatibility reduces inventory fragmentation and simplifies spares, speeding up both procurement and field installation. Engineers gain confidence knowing the coupling integrates with standard fittings without custom adapters. A 33 inch flexible length allows routing around equipment and through tight spaces, reducing the need for additional elbows or long runs. This simplifies layout planning and minimizes bending stress on the conduit, which helps maintain seal integrity. In retrofit projects, the flexibility can save several hours of installation time. With an overall length of 38.75 inches and a weight of 15.27 pounds, the unit provides robust mechanical protection while remaining manageable on the worksite. The heavy-duty form factor resists impact and ensures a secure, vibration-resistant connection in noisy environments. Contractors appreciate the confident fit during mounting and alignment. NEC/CEC compliance and the Class I, Division 1 rating give installers and operators regulatory assurance for safety-critical operations. The device is suitable for hazardous locations across oil, gas, and chemical processing, as well as marine settings where certified explosionproof fittings are required. Installing this coupling supports documentation readiness during audits. The male-female end configuration and forged-brass construction simplify field assembly and reduce the risk of moisture ingress. Its 1-1/4 inch cable/trunk connections are straightforward for technicians, with fewer misfits and reworks. This translates to lower labor costs and faster project completion.

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FAQs

The ECLK433 is rated for a 1-1/4 inch trade size conduit with a male connection on one end and a female connection on the other. It includes a 33 inch flexible section within an overall length of 38.75 inches, enabling clean routing in restricted spaces while maintaining NEC/CEC compliance for Class I Division 1 hazardous locations.
Yes. The ECLK433 carries NEC/CEC compliance and is rated for Class I, Division 1, with additional Class II Division 1 and Class III ratings. This makes it appropriate for hazardous locations in oil, gas, chemical processing, and other industrial settings where explosionproof fittings are required, including regulatory audits and safety programs.
The forged brass construction and explosionproof rating support use in marine and offshore environments where hazardous location equipment is mandated. While it offers corrosion resistance and robust sealing, consider additional corrosion protection strategies (coatings, coatings during installation, and enclosure matching) for long-term seawater exposure and routine maintenance planning.
Documentation is available through multiple Eaton and industry sources: the Crouse-Hinds EC explosionproof couplings catalog page, certified Canadian approvals, and the Eaton ECLK433 specification sheet. These resources provide installation guidance, dimensional data, and compliance notes to streamline audits and field deployment.
The ECLK433 delivers faster commissioning due to its standard 1-1/4 inch fit and 33 inch flexible length, reducing the need for adapters and custom components. Its forged brass body resists corrosion and wear, extending service life and lowering replacement costs. Overall, expect reduced maintenance downtime and predictable performance in hazardous-area projects.