Complex sentence: NEMA non-locking connectors all use blades of various flat and folded shapes (except for the round pins used on grounding connectors) and the plugs can be detached from the receptacles by pulling back on the plug body.
Split into simpler sentences: NEMA non-locking connectors all use blades of various flat and folded shapes (except for the round pins used on grounding connectors). The plugs can be detached from the receptacles by pulling back on the plug body.