Eaton ENR21201 Ark-Gard Receptacle NEC/CEC Hazardous
Part Number: ENR21201
Quick Summary
Eaton ENR21201 Ark-Gard Receptacle is a rugged single-gang receptacle for hazardous locations. Maintenance and compliance teams often grapple with unreliable enclosures that can fail in explosive atmospheres, driving costly downtime and safety concerns. This ENR Value series carries NEC/CEC certifications and hazardous-area ratings, including Class I (Division 1 & 2), Class II (Division 1 & 2), and Class III, with NEMA 3, 7, 9, 12 protection, providing robust protection across environments. Designed for fast, code-ready installation, it enables reliable service and predictable lifecycle costs, while aligning with Ark-Gard product ecosystems for explosion-protected operations and easier procurement for industrial facilities.
Product Information
Extended Description
ENR21201 Eaton Crouse-Hinds: Eaton Crouse-Hinds series Ark-Gard ENR Value receptacle assembly, 20A, Single, 50-400 Hz, Copper-free aluminum, 5-20R, Single-gang, Dead end, 3/4", 125 Vac
Product Name
Eaton Crouse-Hinds series Ark-Gard ENR Value receptacle assembly
Catalog Number
ENR21201
Product Length/Depth
3.5 in
Product Height
6.72 in
Product Width
8 in
Product Weight
7.05 lb
UPC
782274311012
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Division 2 Class II, Division 1 Class II, Division 2 Class III
NEMA Rating
3 7 9 12
Number of gangs
Single-gang
Amperage Rating
20A
Voltage rating
125 Vac
Style
Dead end
Trade size
3/4"
NEMA configuration
5-20R
Cover type
Single
Material
Copper-free aluminum
Frequency rating
50-400 Hz
Eaton Crouse-Hinds ENR21201 3D drawing
Ark-Gard ENR Value Explosionproof NEMA Locking Devices catalog page
Ark-Gard ENP, ENR, ENC Explosionproof NEMA Locking Devices Canadian certification - ENR and ENP
Ark-Gard ENP, ENR, ENC Explosionproof NEMA Locking Devices Canadian certification - ENR and ENP
IF 344 - Ark-Gard ENR Receptacles ENP Model M97 Plugs
IF 344 - Ark-Gard ENR Receptacles ENP Model M97 Plugs
Eaton Specification Sheet - ENR21201
Feature → Business Impact → Application: Copper-free aluminum construction delivers corrosion resistance with lighter weight, reducing handling time and installation effort on rugged plants and offshore platforms, improving total cost of ownership. The 20A, 125 Vac rating with a 5-20R NEMA configuration ensures compatibility with common industrial power supplies and motor loads, minimizing mismatch risks and spare-part needs in chemical plants and refineries. The dead-end, single-gang design simplifies mounting and reduces enclosure footprint in compact switchgear areas, speeding commissioning at existing distribution boards and control panels. A 50-400 Hz frequency rating supports variable-frequency drive environments, enabling reliable operation of pumps and fans in harsh locations while maintaining compliance with NEC/CEC requirements. Ark-Gard ENR Value devices integrate with other explosion-protected components to streamline procurement, stock management, and field service.
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FAQs
ENR21201 is a single-gang, 3/4 inch trade size receptacle with a 5-20R configuration rated at 20A and 125 VAC. It is designed for back-box applications in hazardous locations and supports copper-free aluminum construction, enabling straightforward installation in control panels, junction boxes, and wall enclosures used in Class I and II environments. The unit aligns with Ark-Gard mounting standards to simplify field assembly and spare-part planning.
Key performance specs include a 20A amperage rating, 125 Vac voltage rating, and a frequency range of 50-400 Hz suitable for drives and motors. The copper-free aluminum body offers corrosion resistance, while the dead-end style accommodates secure, maintenance-friendly terminations. Its NEMA rating compatibility (3, 7, 9, 12) supports reliable operation under vibration, moisture, and dust exposure typical of hazardous locations.
Industries such as oil & gas, chemical processing, mining, and marine/offshore facilities benefit from ENR21201 due to its robust enclosure, hazardous-location certifications, and compatibility with Ark-Gard locking devices. Typical applications include pumps, conveyors, and instrumentation power feeds in Class I/II/III environments, where compliance and reliability minimize downtime and safety risks.
ENR21201 meets NEC/CEC standards and is rated for Hazardous/Classified Locations with NEC hazardous ratings across Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III. It aligns with NEMA ratings 3, 7, 9, and 12, confirming suitability for explosive atmospheres and harsh environments while supporting code compliance for installation and operation.
The copper-free aluminum construction offers corrosion resistance and reduced weight, lowering maintenance labor and wear on mounting hardware. Its standardized 20A/125 Vac rating and common 5-20R configuration reduce spare-parts diversity, while NEC/CEC compliance minimizes regulatory risk. The compact single-gang design accelerates installations, shortening project timelines and improving the overall return on investment in hazardous-location facilities.