Eaton Crouse-Hinds ECGJH321 coupling - NEC Class I, Division 1

The ECGJH321 uses a 21-inch flexible brass coupling that withstands harsh conditions common in hazardous locations. This durability translates to lower maintenance costs and longer intervals between replacements, especially in oil, gas, and chemical processing facilities. The design supports reliable conduit continuity across bends and misalignments typical of field installations. With male connections on both ends and a 1-inch trade size, the coupling delivers quick, tool-free assembly and straightforward field termination. This reduces installation time and certifies compatibility with standard conduit systems, minimizing project delays and last-minute substitutions. In practice, you gain faster turnarounds and improved overall project velocity. Material and size details matter in corrosion-prone environments. Forged brass offers excellent resistance to moisture and aggressive atmospheres while maintaining mechanical strength under vibration and temperature swings. The 2.13 inch width and 2.13 inch height provide compact fit in tight electrical rooms and equipment cabinets. Regulatory alignment is built in. The ECGJH321 adheres to NEC/CEC standards with a hazardous rating suitable for Class I, Division 1, Class II, Division 1, and Class III locations, and UL certification options for the US and Canada. This helps engineers pass audits and procurement teams meet compliance without juggling multiple suppliers. Installation considerations and compatibility. The product length/depth is 26 inches, while the flexible section is cited as 21 inches, making it suitable for moderate routing with controlled flex. The compatibility with Eaton Crouse-Hinds EC series fittings simplifies stocking and warranty conditions, and installation sheets (IF 1618) provide clear guidance. Weight is ~4.9 lb, manageable for typical field crews.