Eaton Crouse-Hinds ECGJH721 Explosionproof Coupling - Class I

Part Number: ECGJH721
Manufacturer
Eaton Crouse-Hinds
Part number
ECGJH721

Quick Summary

ECGJH721 explosionproof coupling from Eaton Crouse-Hinds connects conduit in hazardous locations, delivering a flexible 21-inch section for rugged field installs and confined spaces, with robust stainless steel construction. Installers often struggle with ensuring true Class I, Division 1 protection while maintaining alignment, corrosion resistance, and easy assembly in harsh environments. This coupling is NEC/CEC compliant and supported by Canadian certification documents and an EC conformity declaration, helping you pass audits without redesign. Its 27-inch overall length with a 21-inch flexible portion supports reliable routing in offshore platforms, chemical plants, refineries, and other hazardous-area applications.

Product Information

Extended Description

ECGJH721 Eaton Crouse-Hinds: Eaton Crouse-Hinds series ECGJH coupling, 21" flexible length, Male connections both ends, Stainless steel, 2-1/2" trade size
Product Name
Eaton Crouse-Hinds series ECGJH coupling
Catalog Number
ECGJH721
Product Length/Depth
27 in
Product Height
4.44 in
Product Width
4.44 in
Product Weight
1 lb
UPC
782274275055
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class II, Division 1 Class III
Gender
Male connections both ends
Flexible length
21"
Trade size
2-1/2"
Material
Stainless steel
Feature → Business Impact → Application: 21-inch flexible length and 2-1/2 inch trade size simplify long conduit routes in tight spaces, reducing the number of joints and installation time while preserving protection class. Application: offshore platforms and chemical plants where space is at a premium and reliability is non-negotiable. Feature → Business Impact → Application: Stainless steel construction delivers superior corrosion resistance and durability, lowering maintenance costs and downtime in harsh environments. Application: continuous-duty installations in marine or petrochemical settings where exposure to salt spray and chemicals is common. Feature → Business Impact → Application: NEC/CEC compliance with Class I Division 1 ratings, paired with Canadian certifications, minimizes audit risk and accelerates procurement across multi-region projects. Application: multi-site projects requiring cross-border conformity. Feature → Business Impact → Application: 21-inch flexible section plus 27-inch overall length provides routing flexibility and tolerance for misalignment, improving installation speed and reducing signal or power integrity concerns. Application: installations with long runs and vibration, such as offshore rigs and refineries. Feature → Business Impact → Application: Male connections at both ends simplify mating with standard conduits and fittings, improving field assembly and inventory management. Application: maintenance workflows and field upgrades where spare parts alignment matters.

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FAQs

ECGJH721 installation in hazardous locations follows the IF 1618 guidelines and uses stainless steel connectors to maintain enclosure integrity. Align the male ends, slide the coupling over the conduit, and secure with approved fittings per NEC/CEC. Confirm the 2-1/2 inch trade size matches the conduit and that the 21-inch flexible section is fully seated for Class I, Division 1 protection.
Yes. ECGJH721 is designed for NEC/CEC compliance with Class I Division 1 ratings and is compatible with Canadian certification and EC conformity, enabling safe operation in hazardous environments across North America and beyond. It supports area classifications of hazardous/classified locations and aligns with cross-border regulatory requirements for field deployments.
Key specs include 27 inches overall length with a 21-inch flexible segment, 2-1/2 inch trade size, stainless steel body, and male connections on both ends. The UPC is 782274275055, and the unit weighs about 1 lb. These features support quick routing, strong corrosion resistance, and compatibility with standard EC explosionproof fittings in hazardous-area installations.
Best suited for hazardous area applications such as offshore platforms, chemical plants, and refineries, where long conduit runs require bend flexibility. ECGJH721 helps maintain enclosure integrity under vibration and temperature swings, supports Class I Division 1 protection, and meets NEC/CEC requirements plus cross-border certifications, making it ideal for multi-site projects and maintenance programs.
Comprehensive documentation is available, including installation instructions IF 1618 for ECGJH flexible couplings, a Crouse-Hinds catalog page, certification reports for Canada, and an EC declaration of conformity. Engineers often reference the Eaton specification sheet ECGJH721 and UL-listed Canadian certifications to support audits and procurement.