Three-position plug housing for power and signal wiring
The 770783-1: The 6.30 mm pitch (0.248") gives you room for larger-gauge wire and higher current than a signal connector – this is a power interconnect housing.
Contacts are sold separately – order terminals and a crimp tool
For the mating half, use the corresponding Commercial.093" receptacle housing (same series, same pitch).
The closest functional sibling is 770425-1 – same series, same 6.30 mm pitch, same latch lock, same natural nylon housing. If your BOM calls for 2 positions, 770425-1 is the drop-in; for 3 positions, you're on the right part.