No NEMA 10. IF you actually have Hot, Hot, Ground, use NEMA6, properly. NEMA 10 is obsolete and dangerous. NEMA6-30 or L6-30 are common as dirt. See this recent question, or a bunch of older ones.
No NEMA 10. IF you actually have Hot, Hot, Ground, use NEMA6, properly. NEMA 10 is obsolete and dangerous. NEMA6-30 or L6-30 are common as dirt. See this recent question, or a bunch of older ones.