Complex sentence: The hot and neutral blades are angled at 45 ° from vertical and 90 ° to each other, similar to NEMA 10 devices, but the plug is slightly smaller than a NEMA 10 and larger than ordinary 5-15P plugs.
Split into simpler sentences: The hot and neutral blades are angled at 45 ° from vertical and 90 ° to each other, similar to NEMA 10 devices. The plug is slightly smaller than a NEMA 10 but larger than ordinary 5-15P plugs.