The connector and where it sits
The 387700109 is a 9-circuit dual-wall barrier block from the Beau 38770 series, terminated at the top by screws with a closed bottom. It runs at 0.375 inch (9.53 mm) pitch, rated 15 A per circuit at 300 V, in a black UL94 V-0 PBT housing with a flange feature for chassis or panel mounting. The terminal screws are zinc with clear chromate over steel, and the block accepts 14-22 AWG wire across 18 entry points — two per circuit in the dual-row layout.
