Overview
The Crouse-Hinds ENR5201 is a pin and sleeve receptacle assembly engineered for critical applications in hazardous locations. This dead-end, dust-ignitionproof, explosionproof receptacle provides reliable electrical connections in environments where flammable or explosive materials may be present. Manufactured by Eaton Crouse-Hinds, the ENR5201 combines heavy-duty construction with safety-first design to meet stringent industrial electrical codes.
Key Features
- Circuit breaking pin and sleeve design for safe connect/disconnect cycles
- Gasketed screw cap cover for protection in harsh and wet environments
- Saddle clamp terminals simplify wiring and reduce installation time
- Copper-free aluminum construction resists corrosion
- Spring cover type for secure, automatic closure
- Complies with UL and CSA standards for hazardous areas
Technical Specifications
- Voltage Rating: 125 VAC
- Current Rating: 20 Amperes
- Frequency: 50–400 Hz
- Receptacle Type: Pin and Sleeve Circuit Breaking
- NEMA Rating: NEMA 5-20R, NEMA 3/7B/7C/7D/9F/9G/12 Enclosure
- Hazardous Location Classification: Class I Div 1 & 2 (Groups B, C, D); Class II Div 1 & 2 (Groups F, G); Class III
- Constructional Features: Explosionproof, Dust-Ignitionproof, Raintight, Dustproof
- Mating Plug: ENP series
- Hub Size: 1 inch
- Material: Aluminum die-cast, acrylic painted, copper-free
- Terminal Type: Saddle Clamp
- Weight: 2.0 lbs
- Approvals: UL, CSA
- Application Rating: Wet Location
Typical Applications
The ENR5201 is ideal for power distribution and control in industrial environments including:
- Oil and gas facilities, refineries, and petrochemical plants
- Chemical processing and manufacturing plants
- Mining operations
- Automotive and aerospace facilities with explosive atmospheres
- Motor generators, welders, and heavy machinery in classified areas
- Cellular relay stations and outdoor electrical distribution
- Pumps, compressors, and HVAC units in hazardous zones
Compatibility & Replacements
Compatible With
- ENP series plug connectors (mating plug for connection)
- NEMA 3, 7B, 7C, 7D, 9F, 9G, and 12 enclosures
- Class I, II, and III hazardous location installations
- Industrial control systems in classified areas
- Equipment requiring UL/CSA certified electrical connections
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or controls engineer before ordering. Eaton Crouse-Hinds manufactures various ENR-series receptacles; confirm that ENR5201 is the correct replacement for your existing installation.
Works With
- Hazardous location rated cable and conduit systems
- UL/CSA certified electrical enclosures and panels
- Grounding and bonding systems for classified locations
- Industrial motor and machinery control circuits












