What it is and where it sits in the Beau series
The Molex 387800107 is a 7-circuit dual-wall barrier strip in the Beau 38780 series — a chassis and panel-mount terminal block family sized for power-distribution wiring in industrial automation and machine-control enclosures. At 0.438 inch (11.12 mm) pitch the 387800107 sits in the tighter-pitch end of the Beau 38780 range; each circuit carries 15 A and the block is rated 300 V — a combination that covers the majority of AC or DC control-power branch circuits without requiring a heavier barrier strip.
Termination and wiring fit
Top termination is a screw clamp accepting 14–22 AWG conductors; the bottom is closed, so field routing exits upward through the top only — a layout constraint worth confirming against your panel cutout and wire-entry direction before ordering. The dual-wall (2-wall) barrier construction adds mechanical rigidity across the 2-row layout, and the flange feature provides a secondary mounting face for through-bolt or screw attachment to a panel surface — useful when vibration or periodic maintenance access demands a more secure anchor than a bare snap-foot. Terminal screws are steel with a zinc clear-chromate finish — adequate for most industrial environments but worth noting if the installation sits in a wash-down or chemically aggressive zone where a nickel-plated screw would be preferred.
Procurement and sourcing posture
marks the 387800107 as Active with ROHS3 Compliant status — both the lifecycle and the environmental declaration are confirmed on record, so the part enters an RFQ without a lifecycle watch flag. No official successor or cross-reference appears in the series record; confirm the 7-position count, the 0.438 inch pitch, and the flange-mount footprint against your existing panel layout.