Leviton 2510 20 Amp, 120/208 Volt- 3PY, Flush Mounting Locking Receptacle, Industrial Grade, Grounding, V-0-Max, Black Color-Coding Indicated Voltage Ratings NEMA and Non-NEMA Configurations Available UL V-0 Flammability Rating Color-coded voltage rating on face for easy identification Backed by a Lifetime Warranty