Description The Appleton AP20044E is a heavy-duty 200A industrial plug from the AP Series, engineered for three-phase grounding applications requiring secure, high-capacity connections. Rated for 600 VAC and 250 VDC operation at 50–400 Hz, this 4-pole, 4-wire plug is constructed from copper-free aluminum to ensure durability in harsh environments. Designed for demanding industrial systems, it supports large wire sizes and reliable pressure-wire terminations. Technical Specifications Condition New/Never Used Surplus Brand Appleton Category Electrical Products Part Number AP20044E Subcategory Plug/Receptacle Type 3-Phase Grounding Style 1 Series AP Series Voltage Rating 250/600 VAC/VDC Amperage Rating 200 A Frequency Rating 50–400 Hz Number of Poles 4 Number of Wires 4 Material Copper-Free Aluminum Terminal Type Pressure Wire Wire Size Compatibility 2/0 AWG – 250 MCM NEMA Rating 3, 3R, 4, 4X Temperature Rating –40°F to 225°F Phase 3-Phase Dimensions 11.94 in L × 6.81 in W Information About AP20044E The AP20044E belongs to Appleton’s AP Series of Powertite connectors, known for their rugged construction and suitability for industrial and hazardous environments. As a Grounding Style 1 plug, it provides a secure grounding path along with four-pole, four-wire connectivity suitable for three-phase applications. Its copper-free aluminum housing enhances corrosion resistance while maintaining mechanical strength, supporting safe operation in chemically aggressive or outdoor environments. With approvals for NEMA 3, 3R, 4, and 4X enclosures and a wide operational temperature range, the AP20044E integrates seamlessly into high-demand power distribution systems requiring reliability, environmental protection, and robust electrical performance. Key Features: 200A high-capacity rating: Supports heavy industrial loads. 600 VAC / 250 VDC capability: Suitable for versatile AC and DC power systems. Grounding Style 1: Ensures a dedicated equipment grounding path. 4-pole, 4-wire configuration: Supports three-phase systems with an additional grounding conductor. Copper-free aluminum body: Superior corrosion resistance for harsh environments. Pressure-wire terminals: Provide secure and reliable conductor termination. Wide temperature range: Operates from –40°F to 225°F for extreme conditions. NEMA 3/3R/4/4X rated: Protects against dust, water, and corrosive exposure. The AP20044E delivers the reliability and precision required for heavy-duty industrial and hazardous-location power connections.