Industrial-grade extra heavy-duty 4-in-1 receptacle. Nylon face and polycarbonate body. Brass triple-wipe line contacts. Brass 8-32 terminal screws. Straight blade wiring. 1 HP AC horsepower rating. 2-pole. Isolated-grounding, 3-wire. NEMA-5-20R. Withstands 2000 V per UL498 dielectric voltage. Rated V-2 per UL94 flammability. -40 to 60°C operating temperature. Steel 8-32 with 12 AWG green 8 inch pigtail grounding screw. Brass-plated steel terminal screw and brass-plated steel grounding screws. Zinc-plated steel yoke. Zinc-plated steel clamp nut. Brass-plated steel ground clip. Delrin® Acetal shutter mechanism. Terminal accommodates 14 to 10 AWG. Ratings are permanently marked on device. 14 to 16 inch-lbs torque range. -30 dB at 500 kHz to 300 MHz noise rejection. 150 Vrms MCOV. 720 joules rating. 3 kA nominal discharge current rating. 27 kA (L-N 18 kA, L-G 9 kA) maximum surge current, per mode (per phase). 5 kA short circuit current rating. Indicator light diagnostics.