Eaton Crouse-Hinds NPL400400 Conduit Nipple - NEC/CEC
Part Number: NPL400400
Quick Summary
NPL400400 conduit nipple provides a rigid, secure connection for IMC and steel conduits in industrial electrical installations. Field assemblies often suffer from corrosion, misalignment, or compatibility gaps that slow projects and drive rework. This product is NEC/CEC compliant and UL-listed for US and Canada, with a galvanized steel finish tailored for demanding environments. By delivering a durable, easy-to-install solution, it reduces maintenance costs and supports reliable panel and conduit runs across industrial facilities. It fits a 4x4 size and length and works with standard locknuts and fittings for quick, secure terminations.
Product Information
Extended Description
NPL400400 Eaton Crouse-Hinds: Eaton Crouse-Hinds series NPL conduit nipple, Rigid/IMC, Steel, 4" x 4", Galvanized
Product Name
Eaton Crouse-Hinds series NPL conduit nipple
Catalog Number
NPL400400
UPC
662277040044
Product Weight
2.695 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Conduit type
Rigid/IMC
Size and length
4" x 4"
Material
Steel
Special features
Galvanized
Crouse-Hinds series Locknuts, Nipples, Washers, Reducers and Plugs - Rigid-IMC catalog page
Locknuts, Nipples, Washers, Reducers and Plugs - Rigid-IMC UL certification
Locknuts, Nipples, Washers, Reducers and Plugs - Rigid-IMC UL certification
Eaton Specification Sheet - NPL400400
Galvanized steel construction delivers corrosion resistance for harsh environments, extending service life and reducing maintenance in rigid/IMC conduit installations. The 4x4 size and 4 inch length offer compatibility with common conduit runs, simplifying field assembly and reducing fabrication time. NEC/CEC compliance and UL listing for US and Canada provide regulatory confidence and safer installations in industrial facilities. The 2.695 lb weight enables sturdy, single-operator handling without sacrificing rigidity or structural integrity. The finish supports long-term performance in dirty or humid environments, while compatibility with standard locknuts and fittings accelerates installation and minimizes inventory complexity. This conduit nipple is particularly well-suited for control panels, machine frames, and overhead ductwork where durable connections and easy maintenance are critical. Designers and installers benefit from a proven Eaton Crouse-Hinds solution backed by manufacturer support, field service guidance, and extensive documentation for compliance and ROI.
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FAQs
The NPL400400 is designed for rigid/IMC conduit applications and sized at 4x4. It works with standard locknuts and fittings used in common rigid/IMC installations, enabling quick, secure terminations in panels, enclosures, and conduit runs.
NPL400400 is NEC/CEC compliant and UL-listed for both US and Canada, ensuring regulatory compatibility and safety across North American installations. It is rated for Ordinary/Non-Hazardous Locations and is supported by UL certification documentation.
The conduit nipple features a galvanized finish designed for corrosion resistance in demanding environments. While suitable for many industrial settings, consult your environmental conditions and enclosure protection requirements to confirm suitability for outdoor exposure or severe weather scenarios.
The product is a 4x4 conduit nipple made from galvanized steel, with a length of 4 inches. It has an approximate weight of 2.695 lb and is intended for rigid/IMC conduit connections, aligning with standard industry dimensions and mounting practices.
Official specifications and certifications are available through Eaton Crouse-Hinds resources, including the product data sheet and UL certification pages for US and Canada. The download catalog and UL listings provide detailed installation guidance and compliance information.