Eaton NCS21 Enclosure - Hazardous/Classified Locations
Part Number: NCS21
Quick Summary
NCS21 enclosure from Eaton protects electrical gear in hazardous locations. Engineers often struggle to find a compact, compliant housing that withstands Class I, Division 2 environments while enabling straightforward wiring. This enclosure meets NEC/CEC standards and carries robust NEMA ratings of 3, 4X, 7, and 12, delivering safety and durability in plants, refineries, and offshore facilities. The combination of a 3/4 in trade size and a single circuit capacity simplifies control wiring, while its moderate weight and compact footprint support efficient field installation and reduced labor time. This translates to lower lifecycle costs and easier upgrades for automation projects.
Product Information
Extended Description
NCS21 Eaton Crouse-Hinds: Eaton Crouse-Hinds series NCS enclosure, 1, Dead end, 3/4"
Product Name
Eaton Crouse-Hinds series NCS enclosure
Catalog Number
NCS21
UPC
782274088679
Product Length/Depth
3.81 in
Product Height
7.25 in
Product Width
4.38 in
Product Weight
2.13 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 2
NEMA Rating
3 4X 7 12
Number of circuits
1
Style
Dead end
Trade size
3/4"
N2S and N2SC Series Non-metallic Control Stations catalog page
N2S and N2SC Non-metallic Hazardous Area Control Stations UL certification
N2S and N2SC Non-metallic Hazardous Area Control Stations UL certification
Eaton Specification Sheet - NCS21
Hazardous-location readiness with NEC/CEC compliance reduces approval delays and regulatory risk, enabling faster project sign-offs and safer deployments in sensitive environments. This NCS21 enclosure carries Class I, Division 2 ratings and NEMA protections of 3, 4X, 7, and 12, delivering dependable protection in chemical plants, refineries, and offshore facilities. By aligning with these standards, procurement can consolidate sourcing, and maintenance teams gain confidence during audits. Application spans control panels, motor starters, and sensor interfaces where a compact, compliant housing is essential. The compact dimensions and a modest 2.13 lb weight translate to practical installation gains. The 3.81 in depth, 7.25 in height, and 4.38 in width fit narrow rack spaces and retrofit openings, while still accommodating wiring and terminal blocks. For installers, lighter panels reduce handling time, shipping costs, and fatigue on long runs. In project environments with strict space constraints, this enclosure accelerates assembly, lowers labor requirements, and minimizes field risk. Single-circuit dead-end configuration with 3/4 in trade size minimizes enclosure footprint while preserving rugged enclosure performance. This combination supports compact motor control points, gate-open indicators, or local-start interfaces without sacrificing protection. Contractors appreciate the straightforward wiring routes, which reduce potential faults and improve reliability in hazardous areas. UL hazardous-location certification support and NEC/CEC conformance provide traceability for audits and insurance. The NEMA ratings ensure performance in challenging environments, while the product data pages and UL listings simplify procurement and qualification during regulatory reviews. For plant managers, the result is easier compliance management and predictable maintenance budgeting. Field compatibility and installation advantages include standard mounting footprints and accessible wiring cavities, enabling quick splices and terminations. The NCS21's single-circuit design pairs well with Eaton's accessories for control stations, accelerating configuration changes and future upgrades. With its documented protection levels and practical dimensions, this enclosure supports scalable automation projects in hazardous environments.
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FAQs
NCS21 is designed for Class I, Division 2 locations with NEC/CEC compliance and NEMA protection. For installation, verify ambient conditions and use approved mounting hardware to secure the enclosure to a stable surface. Ensure wiring access is via approved entries, seal penetrations to maintain enclosure integrity, and follow UL hazard area guidelines during wiring and terminations for reliable operation.
Key specs include catalog number NCS21, 1 circuit, 3/4 in trade size, dimensions 3.81 in depth, 7.25 in height, 4.38 in width, and weight 2.13 lb. It carries Area classification Hazardous/Classified Locations, NEC/CEC standards, and NEMA ratings 3, 4X, 7, 12, making it suitable for single-circuit control points in demanding environments.
Yes. The NCS21 enclosure is designed for hazardous locations, including Class I, Division 2 environments common in chemical plants and refineries. It provides compliant housing for single-circuit control points, aligns with NEC/CEC requirements, and leverages NEMA protection to safeguard control components in challenging plant settings.
NCS21 meets NEC/CEC standards for hazardous locations and carries area classification Hazardous/Classified Locations with NEC hazardous rating Class I, Division 2. It also aligns with NEMA ratings 3, 4X, 7, 12, and has UL certification coverage for hazardous-area applications, supporting audits and regulatory reviews.
The NCS21 enclosure enhances safety and regulatory compliance while reducing installation time thanks to its compact footprint and single-circuit design. Lower field labor, easier wiring routes, and robust protection lower lifecycle costs, minimize downtime during changes or upgrades, and provide a scalable solution for expanding hazardous-area automation.