Small adapter that looks like the letter T. 2 male and 1 female Cam-Lok connector on it, available at Lightbulb Rentals. Used to split a line out.
Clayton: 300 Amp Three Phase Cam-lok (Thru)$65/day
Camlock Hard Tee – MFF (White)$5/day
Camlock Turnaround, MM (Green)$5/day
Camlock Cable: (50′, #2, 5-Wire Banded)$50/day
See Factor 200A Three Phase Camlock Pass Through Distro Box$65/day
Male 20A Bates to Female Edison$3/day
Camlock Hard Tee – MMF (White)$5/day
Camlock Turnaround, FF (Black)$5/day