What it is and where it sits in the Beau 38770 series
The Molex 387700118 is the 18-circuit member of the Beau 38770 dual-row barrier strip family. Two walls of insulating barrier divide each position, and the screw-top termination accepts 14-22 AWG conductors — the combination that makes this class the go-to for panel and chassis-level power distribution where a wired run lands on a fixed terminal point. Rated 15 A per circuit at 300 V with a 36-wire entry count across the two rows, it is sized for load-branch termination rather than bus-level current carrying.
What the key ratings mean for the fit
The 0.375 inch (9.53 mm) pitch sets the centre-to-centre spacing for each terminal pair. Match this against the panel cutout pitch of any existing barrier strip you are replacing — a pitch error means the mounting holes will not line up without re-drilling the chassis. The 15 A per circuit rating is governed by the steel screw terminal and the PBT housing's thermal ceiling; the UL94 V-0 flammability rating confirms it clears the enclosure-material requirement in most industrial panel builds. The 2-wall (dual) barrier provides physical segregation between adjacent circuits — relevant where voltage differential between adjacent positions could drive creepage concern at 300 V. Black PBT housing; confirm this matches the colour standard in your build if the terminal block is visible in the assembled enclosure.
Sourcing and lifecycle
The 387700118 is listed Active and ROHS3 Compliant — quoted to order against BOM quantity. No official successor or cross-reference is on record for this MPN. Confirm the position count and wire gauge match your existing panel layout before committing to the order.