Eaton ENR21151 M4 Ark-Gard Receptacle - Hazardous Locations
Part Number: ENR21151 M4
Quick Summary
ENR21151 M4 Ark-Gard receptacle assembly provides safe, explosion-protected power delivery for hazardous locations. Engineers face reliability, compliance, and maintenance burdens when deploying equipment in challenging environments. It carries NEC/CEC compliance and hazardous-location ratings—Class I Division 1; Class II Division 1/2; Class III—plus NEMA protections 3, 3R, 7, 9, 12. Designed for single-gang installations with a copper-free aluminum housing, it reduces weight, corrosion risk, and field service time while keeping plug connectivity secure in tough conditions. With the Ark-Gard ENR Premier lineage, you gain a proven, scalable solution that supports global operations and simplifies procurement for process plants, offshore rigs, and mining sites.
Product Information
Extended Description
ENR21151 M4 Eaton Crouse-Hinds: Eaton Crouse-Hinds series Ark-Gard ENR Premier receptacle assembly, 15A, Single, 50-400 Hz, Copper-free aluminum, 5-15R, Single-gang, Dead end, 3/4", 125 Vac
Product Name
Eaton Crouse-Hinds series Ark-Gard ENR Premier receptacle assembly
Catalog Number
ENR21151 M4
Product Length/Depth
6.78 in
Product Height
6.75 in
Product Width
3.5 in
Product Weight
1 lb
UPC
662276173880
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
15A
Voltage rating
125 Vac
Style
Dead end
Trade size
3/4"
NEMA configuration
5-15R
Cover type
Single
Material
Copper-free aluminum
Frequency rating
50-400 Hz
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Eaton Specification Sheet - ENR21151 M4
Explosion-proof Ark-Gard ENR Premier receptacle reduces ignition risk in hazardous locations, delivering steady power to control systems and enclosures in oil and gas, chemical, and offshore facilities. This design meets NEC/CEC requirements and a broad hazardous-area rating, supporting risk reduction and regulatory compliance. With a 15A, 125V rating, the unit supports common field devices and plugs without adapters, accelerating installation and reducing wiring complexity. The 50-400 Hz frequency rating enables compatibility across regional power systems and international projects. Copper-free aluminum housing provides corrosion resistance and lighter weight, improving durability in marine environments while easing handling and installation in restricted spaces. NEMA configuration 5-15R, 3/4 in trade size, single-gang, dead-end cover offer straightforward integration with standard plug connections and enclosure layouts. NEMA ratings 3, 3R, 7, 9, 12 and UL certification references reinforce compliance in audits and supplier specs, helping procurement teams avoid last-minute substitutions.
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FAQs
ENR21151 M4 uses a standard 5-15R NEMA configuration and 3/4" trade size, designed for single-gang enclosures. It offers a secure, corrosion-resistant copper-free aluminum housing and a dead-end cover, ensuring reliable plug connections without adapters in heavy-duty hazardous-area environments such as chemical plants and oil & gas facilities.
The unit provides NEC/CEC compliance with multiple hazardous-location ratings, including Class I Division 1 and Class II Division 1/2, as well as Class III. It also carries NEMA ratings 3, 3R, 7, 9, and 12, supporting regulatory audits and ensuring suitability for hazardous-area installations in varied industrial sectors.
Yes. The copper-free aluminum housing provides corrosion resistance suitable for marine and offshore settings, while the hazardous-location ratings and NEMA protection levels offer robust operation in wet, challenging environments. Its lightweight profile also simplifies installation on offshore platforms and shipboard electrical systems.
Plan for a single-gang enclosure with a 3/4" trade size and 5-15R configuration. The dead-end style and single cover simplify field wiring and maintenance. Given its 50-400 Hz rating, verify regional power standards, and ensure mounting supports the unit’s 6.78 in length, 6.75 in height, and 3.5 in width for your enclosure layout.
The ENR21151 M4 delivers durable, explosion-protected power delivery with certified compliance, reducing unplanned downtime and replacement costs. Its corrosion-resistant housing minimizes maintenance in marine and chemical environments, while its straightforward installation reduces labor time during initial setup and periodic inspections, delivering lower total cost of ownership over the asset life.