Eaton ENR31201 M4 Ark-Gard ENR Premier Receptacle - Hazardous
Part Number: ENR31201 M4
Quick Summary
The Eaton ENR31201 M4 Ark-Gard ENR Premier receptacle assembly provides hazardous location power connections for industrial facilities. Operators often struggle with durable, compliant hardware that can withstand moisture, dust, and harsh chemicals without delaying maintenance or compromising safety. It meets NEC/CEC requirements and hazardous location ratings, including Class I Division 1 and 2, Class II Division 1 and 2, and Class III, plus NEMA 3, 3R, 7, 9, 12, ensuring robust protection in demanding environments. By pairing copper-free aluminum construction with a single-gang form factor, it simplifies installation and reduces downtime while delivering long-term reliability. Designed to integrate with the Ark-Gard ENR Premier family, it provides a scalable, certified solution for both new builds and plant modernizations in hazardous locations.
Product Information
Extended Description
ENR31201 M4 Eaton Crouse-Hinds: Eaton Crouse-Hinds series Ark-Gard ENR Premier receptacle assembly, 20A, Single, 50-400 Hz, Copper-free aluminum, 5-20R, Single-gang, Dead end, 1", 125 Vac
Product Name
Eaton Crouse-Hinds series Ark-Gard ENR Premier receptacle assembly
Catalog Number
ENR31201 M4
Product Length/Depth
6.78 in
Product Height
6.75 in
Product Width
3.5 in
Product Weight
0.999 lb
UPC
662276174375
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
Single-gang
Amperage Rating
20A
Voltage rating
125 Vac
Style
Dead end
Trade size
1"
NEMA configuration
5-20R
Cover type
Single
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 344 - Ark-Gard ENR Receptacles ENP Model M97 Plugs
IF 344 - Ark-Gard ENR Receptacles ENP Model M97 Plugs
IF 344 - Ark-Gard ENR Receptacles ENP Model M97 Plugs
Eaton Specification Sheet - ENR31201 M4
Copper-free aluminum housing delivers superior corrosion resistance and lightness, reducing chassis wear and lowering transport costs while preserving strength in chemical, offshore, and marine environments. This translates to longer service life in hazardous location receptacles, lower maintenance frequency, and minimized downtime during outages. The 20A, 125Vac rating with a 50-400 Hz frequency range supports common control and power circuits in process facilities, enabling reliable operation across global sites. The 1" trade size with 5-20R NEMA configuration ensures plug-and-receptacle compatibility with standard equipment and simplifies spares management, reducing procurement lead times. The single-gang, dead-end design maximizes enclosure footprint efficiency, streamlining panel layouts and enabling faster installs in constrained spaces. Compliance with NEC/CEC and a broad NEMA suite (3, 3R, 7, 9, 12) minimizes risk and aligns with regulatory programs, while the Ark-Gard ENR Premier ecosystem provides proven compatibility and a shared maintenance path across the installation. Typical applications include chemical plants, oil and gas facilities, and offshore platforms that require explosion-proof locking devices and rugged, proven performance.
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FAQs
ENR31201 M4 is designed for single-gang mounting with a 1" trade size and 5-20R NEMA configuration. Its dimensions (6.78 in L x 6.75 in H x 3.5 in W) and copper-free aluminum housing ensure a compact footprint while delivering robust protection in hazardous locations. The unit’s lightweight construction supports easier field installation and reduces handling risk for technicians.
The receptacle delivers 20A at 125 VAC with a frequency rating of 50-400 Hz, suitable for broad industrial control circuits. The copper-free aluminum housing enhances corrosion resistance, while the 1" trade size and 5-20R configuration provide compatibility with standard plugs. These specs support dependable operation across chemical, offshore, and other demanding hazardous locations.
Yes. The ENR31201 M4 carries NEC/CEC standards with hazardous area ratings that include Class I Division 1 and 2, Class II Division 1 and 2, and Class III. It also carries NEMA ratings of 3, 3R, 7, 9, and 12, ensuring broad regulatory compliance and suitability for diverse hazardous environments across North America and international sites.
A comprehensive suite of resources accompanies ENR31201 M4, including the Ark-Gard ENR Premier catalog page, installation sheets (IF 344 and related documents), and the Eaton specification sheet. These materials provide wiring diagrams, mounting guidance, and certification references to streamline approvals, procurement, and on-site installation.
The ENR31201 M4 combines durable copper-free aluminum construction with broad hazardous location certifications, reducing maintenance frequency and replacement cycles. Its compatibility with the Ark-Gard ENR Premier family simplifies spares inventory and lifecycle management, lowers downtime during maintenance, and supports standardized procurement across multiple sites, delivering measurable cost-of-ownership savings over time.