Eaton N2S2121U Selector Switch Control Station - IP66
Part Number: N2S2121U
Quick Summary
N2S2121U selector switch control station is designed to deliver reliable local control for hazardous area automation. Engineers often struggle to maintain uptime when control stations fail or enable non-compliant installations in classified locations. This unit carries critical certifications such as IP66 ingress protection, NEMA ratings of 3, 4X, 7 and 12, and NEC/CEC compliance to support safe, code-aligned installations. By leveraging a non-metallic high impact polyester enclosure and a compact 3/4" trade size, it reduces panel footprint while enhancing durability. For ongoing maintenance and procurement efficiency, the N2S2121U integrates smoothly with the Eaton Crouse-Hinds portfolio, helping streamline spares, training, and installation practices across industrial facilities.
Product Information
Extended Description
N2S2121U Eaton Crouse-Hinds: Eaton Crouse-Hinds series N2SU selector switch control station, With selector switch, High impact polyester, Two position, two circuit, Dead end, 3/4", 600 VAC
Product Name
Eaton Crouse-Hinds series N2SU selector switch control station
Catalog Number
N2S2121U
UPC
782274111834
Product Length/Depth
3.94 in
Product Height
6.3 in
Product Width
3.54 in
Product Weight
2 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Zone 1 Class I, Division 2 Class I, Zone 2 Class II, Division 2
NEMA Rating
3 4X 7 12
Ingress protection (IP) ratings
IP66
Enclosure type
With selector switch
Normal position
Two position, two circuit
Style
Dead end
Trade size
3/4"
Material
High impact polyester
Voltage rating
600 Vac
N2SU and N2SCU Series Non-metallic Control Stations catalog page
N2SU and N2SCU Non-metallic Industrial Control Stations UL certification
N2SU and N2SCU Non-metallic Industrial Control Stations UL certification
IF 703 - N2S and N2SU Control Stations
Eaton Specification Sheet - N2S2121U
Non-metallic enclosure made from high impact polyester provides superior corrosion resistance and impact durability, delivering safer operation in harsh environments and reducing replacement costs in the field. Business impact: lower total cost of ownership and fewer unplanned outages; Application: motor and conveyor control in chemical plants and outdoor substation environments. Two-position, two-circuit design simplifies control logic and wiring, enabling faster assembly and easier troubleshooting. Business impact: reduced installation time and improved downtime metrics; Application: dual-path control schemes for multi-speed pumps or redundant circuits. Enclosure is rated IP66 with NEMA 3, 4X, 7, 12 compatibility, ensuring rugged performance in Zone 1/2 and Division 2 locations. Business impact: enhanced safety compliance and long service life; Application: hazardous-location control stations for oil, gas, and petrochemical facilities. NEC/CEC compliance and area classifications provide regulatory alignment, reducing audit findings and implementation risk. Business impact: faster approvals and safer operation; Application: new-builds and retrofits across industrial plants. 3/4" trade size and standard mounting support straightforward integration with common control panels and existing N2S/N2SCU family devices. Business impact: simplified procurement, common parts philosophy, and easier maintenance; Application: standardized control stations across multi-site operations.
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FAQs
To install the N2S2121U, mount the unit in a compatible enclosure or backbox using standard 3/4 inch conduit entries. Maintain IP66 sealing by using appropriate gaskets and seals during terminations. Ensure wiring follows NEC/CEC guidelines for Class I, Zone 1/Zone 2 locations and verify that the device is secured to support structures to withstand industrial vibrations. Field wiring should respect the two-circuit configuration and the dead-end style, reducing wiring complexity and aiding future expansions.
The N2S2121U features a two-position, two-circuit selector switch in a dead-end enclosure, with a 3/4" trade size and a 600 VAC rating. It is designed for non-metallic control stations and complies with NEC/CEC standards. The enclosure provides IP66 protection and is suitable for hazardous locations (Class I, Zone 1; Division 2; Zone 2) with corresponding NEMA ratings, enabling safe, reliable operation in demanding environments.
Yes. The N2S2121U is well suited for oil and gas, chemical processing, and other heavy industries operating in hazardous locations. Its IP66 enclosure, NEMA 3/4X/7/12 protection, and NEC/CEC compliance make it ideal for Zone 1/Zone 2 and Division 2 environments. The two-position, two-circuit design supports dual-path control essential for motors, pumps, and conveyors in harsh plants.
The N2S2121U carries NEC/CEC compliance with hazardous location ratings and area classifications, along with UL certifications for use in Class I, Zone 1 and Division 2, as well as Zone 2 environments. It also boasts IP66 ingress protection and robust NEMA ratings of 3, 4X, 7, and 12, ensuring suitability for demanding industrial applications and regulatory audits.
The N2S2121U uses a high impact polyester non-metallic enclosure, delivering extended durability and corrosion resistance, which reduces replacement frequency and downtime. Its standardized form factor across Eaton’s N2S/N2SCU family simplifies sparing and procurement, lowering maintenance costs. The device’s rugged ratings support long service life in hazardous environments, providing cost-effective assurance for critical automation cycles.