Eaton ENR22201 M4 Receptacle Assembly - NEMA 3/3R/7/9/12
Part Number: ENR22201 M4
Quick Summary
ENR22201 M4 Receptacle Assembly is a hazardous-location power interface for industrial control panels and equipment. In demanding environments, mismatched fittings or non-certified hardware can drive costly downtime and safety risks. This ENR Premier unit carries NEC/CEC compliance and hazardous-location ratings, including Class I Division 1 and 2, Class II Division 1 and 2, and Class III, with NEMA 3, 3R, 7, 9, 12, ensuring safety and performance. The copper-free aluminum housing offers corrosion resistance and reduced weight, supporting easier field installation and long-term maintenance. Designed for offshore platforms, chemical plants, and heavy manufacturing, it delivers reliable power delivery while simplifying procurement with a two-gang footprint and standard NEMA configuration such as 5-20R. This combination translates to lower lifecycle costs and faster MTBF.
Product Information
Extended Description
ENR22201 M4 Eaton Crouse-Hinds: Eaton Crouse-Hinds series Ark-Gard ENR Premier receptacle assembly, 20A, Double, 50-400 Hz, Copper-free aluminum, 5-20R, Two-gang, Dead end, 3/4", 125 Vac
Product Name
Eaton Crouse-Hinds series Ark-Gard ENR Premier receptacle assembly
Catalog Number
ENR22201 M4
Product Length/Depth
6.78 in
Product Height
6.75 in
Product Width
7.56 in
Product Weight
1 lb
UPC
662276174306
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 3R 7 9 12
Number of gangs
Two-gang
Amperage Rating
20A
Voltage rating
125 Vac
Style
Dead end
Trade size
3/4"
NEMA configuration
5-20R
Cover type
Double
Material
Copper-free aluminum
Frequency rating
50-400 Hz
Ark-Gard ENR Premier 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 1588 - ENR M4 Series Receptacles
IF 1588 - ENR M4 Series Receptacles
IF 1588 - ENR M4 Series Receptacles
Eaton Specification Sheet - ENR22201 M4
Copper-free aluminum housing provides corrosion resistance and lighter weight, reducing maintenance costs in aggressive environments and enabling easier handling during installation. This translates to longer service intervals and lower total cost of ownership in offshore, chemical, and heavy industrial facilities. Ark-Gard ENR Premier design offers a robust two-gang, dead-end configuration with a 5-20R NEMA arrangement, speeding wiring, simplifying procurement, and ensuring consistent terminations across multiple panels—crucial for contractors and OEMs working under tight project timelines. Electrical ratings of 20A at 125 Vac with a 50-400 Hz frequency range support worldwide applications, reducing the need for part variations and enabling modular inventory strategies in global plants. NEMA ratings of 3, 3R, 7, 9, 12 and NEC/CEC hazardous-location classifications provide comprehensive compliance, minimizing change orders and reinforcing safety programs for hazardous-area installations in chemical processing, mining, and oil & gas. The dead-end style with a double cover delivers dependable protection against dust and moisture ingress, while the 3/4" trade size and two-gang footprint fit standard enclosures, accelerating field installs and enabling scalable panel designs. At a practical level, the dimensions (6.78 in L, 6.75 in H, 7.56 in W) and a 1 lb weight support compact, retrofit-friendly integration with existing wiring devices, helping maintenance teams swap or upgrade without heavy rework.
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FAQs
Installing the ENR22201 M4 requires attention to the Class I/II/III locations and NEC/CEC compliance. Use standard two-gang enclosures and compatible 5-20R receptacles, verify copper-free aluminum housing integrity, and follow the IF 1588 series installation sheets for wiring terminations and torque specs. The result is a safe, code-compliant connection with predictable maintenance intervals and minimal rework in harsh environments.
Key specs include a 20A amperage rating, 125 Vac voltage, and a frequency rating of 50–400 Hz. The NEMA configuration is 5-20R, with a two-gang, dead-end, double-cover arrangement. This combination supports standard industrial outlets in hazardous-area equipment and simplifies cross-application wiring across global power systems.
Yes. The enclosure carries hazardous-location classifications (Class I, II, III with divisions 1 and 2) and NEMA ratings including 3, 3R, 7, 9, 12, making it appropriate for offshore platforms and chemical processing environments where reliable isolation and weather-resistant housing are essential.
The device adheres to NEC/CEC standards and hazardous-location classifications, with listings spanning Class I Division 1 and 2, Class II Division 1 and 2, and Class III, along with NEMA 3, 3R, 7, 9, 12 ratings. This combination supports safety, reliability, and regulatory compliance for high-risk industrial applications.
Copper-free aluminum provides superior corrosion resistance in humid, salty, or chemically aggressive environments, reducing the frequency of enclosure replacements and coating repairs. Its lighter weight eases installation and handling, contributing to lower field labor costs and longer intervals between routine servicing in hazardous-area facilities.