Eaton Crouse-Hinds NPL300400 Conduit Nipple - Galvanized

Part Number: NPL300400
Manufacturer
Eaton Crouse-Hinds
Part number
NPL300400

Quick Summary

NPL300400 conduit nipple from Eaton Crouse-Hinds provides a rugged joining solution for rigid/IMC conduits in industrial installations. This part addresses common pain points like corrosion, misalignment, and slow field assembly by delivering a standardized, galvanized steel connector with precise dimensions. The product is NEC/CEC compliant and UL-listed for rigid IMC installations in both the United States and Canada, ensuring regulatory alignment and inspector acceptance. By using a consistent 3x4 inch footprint and galvanized finish, it simplifies stocking, reduces replacement cycles, and improves installation accuracy. For engineers and procurement teams, the NPL300400 offers predictable performance, lower maintenance costs, and faster project throughput without compromising safety or reliability.

Product Information

Extended Description

NPL300400 Eaton Crouse-Hinds: Eaton Crouse-Hinds series NPL conduit nipple, Rigid/IMC, Steel, 3" x 4", Galvanized
Product Name
Eaton Crouse-Hinds series NPL conduit nipple
Catalog Number
NPL300400
UPC
784564115515
Product Length/Depth
3.25 in
Product Height
3.25 in
Product Width
4 in
Product Weight
2 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Conduit type
Rigid/IMC
Size and length
3" x 4"
Material
Steel
Special features
Galvanized
Galvanized steel construction delivers corrosion resistance and long service life, reducing maintenance costs in damp or outdoor environments. This translates to fewer field replacements and lower lifecycle cost while keeping connections secure under vibration and temperature variations. Rigid/IMC conduit compatibility simplifies system design, ensuring a reliable fit across standard Eaton Crouse-Hinds NPL fittings and reducing custom adapters or field fabrication delays. The compact 3.25 inch length with a 4 inch width and a 2 pound weight enables easy handling in crowded panels and restricted spaces, accelerating installation and minimizing labor time. Compliance with NEC/CEC and UL listings provides regulatory confidence, inspector approval, and a solid basis for code-required documentation. These features collectively support faster commissioning, reduced warranty exposure, and improved site safety in harsh industrial environments. The product’s galvanized finish offers weather resistance for outdoor and exposed installations, aligning with lifecycle cost reduction strategies and maintenance planning. In practice, this means fewer service calls, more predictable project delays, and better overall project ROI for process industries and manufacturing facilities that depend on robust conduit infrastructure. The long-term value comes from standardized, compatible fittings that streamline procurement, stocking, and field service, while still meeting stringent electrical codes and safety standards.

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FAQs

Installers should align the nipple with the mating rigid or IMC conduit, seat fully to ensure a consistent fit, and secure with standard locknuts or fittings designed for NPL series. The galvanized steel construction resists corrosion, while the standardized 3x4 inch footprint helps ensure a repeatable, code-compliant connection in panels and outdoor enclosures. Verify NEC/CEC compliance in your jurisdiction and follow local grounding practices during installation.
The NPL300400 is designed to meet NEC/CEC standards, providing code-compliant connections for rigid/IMC conduit in industrial settings. Its galvanized steel construction offers durability in non-hazardous environments, and UL listings for US and Canada further validate its suitability for regulatory acceptance and inspection, reducing project risk and documentation gaps.
Yes. The NPL300400 carries UL listings for both the United States and Canada, confirming conformity to applicable UL standards for rigid-IMC conduit fittings. This dual listing supports cross-border procurement, simplifies compliance validation, and helps ensure acceptance by inspectors across facilities operating in North America.
The NPL300400 measures 3.25 inches in length, 3.25 inches in height, and 4 inches in width, with a weight of approximately 2 pounds. Catalog number NPL300400, material steel, galvanized finish, and a 3x4 inch footprint facilitate precise planning, layout accuracy, and straightforward inventory management for panel builds.
Yes. The product is specified for Ordinary/Non-Hazardous Locations and features a galvanized steel finish suitable for outdoor or damp environments. This combination provides reliable corrosion resistance, supports long service life, and reduces maintenance needs in typical industrial installations such as exterior panels or exposed conduit runs.