3? TwistLock connectors

[Open Neutral]

What twistlock is normally used on small [<20A] 208V 3? machine tools? I see the L15 series but they lack a neutral, and I wonder about the added DRO's, coolant pumps and such I see hung on such. I've seen them on separate 120V cordage but.....

 

[zbang]

Probably an L21-20 (120/208y + G, 20a).

 

[GoldDigger]

A connector with a neutral will allow you to use either wye or delta loads in the future, as well as single phase loads.
Unless you are doing a disconnect for a single delta wound motor, I would use a connector with the neutral.