Eaton Crouse-Hinds NPL50400 Conduit Nipple - NEC/CEC
Part Number: NPL50400
Quick Summary
Conduit nipple like the NPL50400 joins rigid or IMC conduits for protected wiring runs in industrial facilities. When space is tight or routing is complex, misalignment and exposed threads can slow installs—this part helps keep terminations consistent and secure. It meets NEC/CEC standards and is galvanized steel for ordinary/non-hazardous locations, supporting durable, code-compliant installations. Its 1/2 in x 4 in size and galvanized finish streamline procurement and field assembly, delivering predictable performance and lower lifecycle costs for panel builders and integrators. Designed for fast field assembly, it reduces rework and supports standard inventory across projects, improving project timelines and total cost of ownership.
Product Information
Extended Description
NPL50400 Eaton Crouse-Hinds: Eaton Crouse-Hinds series NPL conduit nipple, Rigid/IMC, Steel, 1/2" x 4", Galvanized
Product Name
Eaton Crouse-Hinds series NPL conduit nipple
Catalog Number
NPL50400
UPC
784564115041
Product Length/Depth
4 in
Product Height
0.7 in
Product Width
0.5 in
Product Weight
0.24 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Conduit type
Rigid/IMC
Size and length
1/2" 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 Canadian certification
Locknuts, Nipples, Washers, Reducers and Plugs - Rigid-IMC Canadian certification
Eaton Specification Sheet - NPL50400
Size and compatibility are tailored to 1/2" conduit runs, with a 4" length that fits typical panel and enclosure layouts. This standardization reduces need for adapters and minimizes inventory complexity, accelerating installation schedules and enabling consistent terminations across projects. The business impact is lower labor time and fewer field corrections, especially in high-mix environments where technicians handle multiple conduit sizes daily. Application-wise, it pairs seamlessly with rigid/IMC systems in control cabinets and machine rooms, delivering reliable, code-compliant connections that installers can trust. Material quality matters: galvanized steel provides corrosion resistance, extending service life in moderate environments and reducing maintenance costs for mid-life electrical infrastructure. This translates into lower total cost of ownership for OEMs and maintenance teams. Certifications and compliance are baked in: NEC/CEC standards ensure regulatory alignment, while ordinary/non-hazardous location ratings support broad applicability in manufacturing floors and office-adjacent facilities. The combination of finish, dimensional discipline, and compatibility with standard fittings enhances installation efficiency and reduces risk during panel wiring. Finally, the NPL50400’s compact footprint and known weight of 0.24 lb enable easier handling and transportation on job sites, improving crew ergonomics and site productivity.
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FAQs
NPL50400 is a 1/2 inch by 4 inch galvanized steel conduit nipple designed for rigid/IMC conduits in ordinary locations. Ensure proper alignment with mating fittings, verify thread engagement, and secure terminations using appropriate screws or nuts. Allow adequate clearance for panel accessories, follow NEC/CEC guidelines, and confirm compatibility with existing conduit runs to minimize rework and optimize installation time.
Key specs include 1/2 inch conduit size, 4 inch length, 0.7 inch height, 0.5 inch width, and a weight of 0.24 lb. Material is steel with a galvanized finish for corrosion resistance. Conduit type is Rigid/IMC, and the catalog number is NPL50400. It carries NEC/CEC standards and is intended for ordinary/non-hazardous locations with UPC 784564115041.
NPL50400 is specified for Ordinary/Non-Hazardous Locations and adheres to NEC/CEC standards. While the galvanized finish provides corrosion resistance, this component is not designated for hazardous locations or weatherproof outdoor service without additional protection or enclosure. For outdoor or hazardous environments, consult additional enclosure or rating requirements and consider appropriate protective accessories.
NEC/CEC compliance ensures that the NPL50400 conduit nipple meets recognized electrical codes for safe wiring connections in standard industrial installations. This simplifies project approvals, helps maintain labeling consistency, and reduces compliance risk during inspections. When integrating into a panel or conduit run, ensure the nipple is used within ordinary location boundaries and paired with compatible fittings that meet NEC/CEC requirements.
Using galvanized NPL50400 nipples offers improved corrosion resistance, extending service life in typical industrial environments and reducing maintenance needs. The standardized 1/2" x 4" size streamlines procurement and stocking, lowering inventory costs. Faster installation and fewer field problems translate to shorter project timelines and lower total cost of ownership for plant engineers and maintenance teams.