Overview
The Mennekes ME420R7W is a panel-mounted pin and sleeve watertight receptacle rated for 20 amps at 480VAC 3-phase. Built to IEC 60309 specifications, this receptacle delivers reliable electrical distribution in demanding industrial and commercial environments. The 4-wire configuration supports 3-pole plus ground, making it ideal for temporary power, industrial equipment, and mobile applications.
Key Features
- Watertight design rated IP67 for outdoor and wet-location installations
- NEMA 4X enclosure rating ensures corrosion and environmental protection
- Pin and sleeve connector system prevents accidental disconnection and ensures mating safety
- Brass sleeve for durability and reliable electrical contact
- cULus certified to UL 1682, UL 1686, and CSA 22.2 standards
- Red color-coded for 480VAC identification per industry convention
Technical Specifications
- Amperage: 20A
- Voltage: 480VAC, 3-phase
- Poles: 3
- Wires: 4 (3-pole + ground)
- Grounding Contact: Position 7h (top)
- IP Rating: 67 (fully sealed, temporary immersion)
- NEMA Rating: 4X (stainless steel equivalent)
- Sleeve Material: Brass
- Voltage Class: 3 Phase 480VAC
- Standard HP Rating: 5 HP
- Weight: 0.70 lbs
- Compliance: cULus to UL 1682, UL 1686, and CSA 22.2 No. 185
Typical Applications
- Temporary power distribution on job sites and industrial facilities
- Mobile equipment and generator connection systems
- Outdoor electrical installations in wet or corrosive environments
- Heavy machinery and equipment startup/shutdown control
- Industrial backup power systems
- Maritime and offshore electrical distribution
Compatibility & Replacements
Compatible With
- Mennekes ME420P7W 20A 480V plug (mating connector)
- Mennekes 420C7W connector (compatible connector socket)
- IEC 60309 pin and sleeve systems (same standard)
- Three-phase 480VAC power systems
- Panel-mount installations with standard knockout sizes
Replaces / Drop-In Replacement For
- Earlier Mennekes 420R7W receptacles (backward compatible)
- Non-watertight 20A 480V receptacles in protected environments (check IP rating requirements)
- Verify compatibility with your specific mating plugs before replacement
Works With
- IEC 60309 Pin and Sleeve connector family
- Standard industrial electrical panels and enclosures
- Temporary power distribution systems (construction, events)
- Three-phase motor control systems up to 5 HP
- Mobile generator and portable power equipment



