The Molex 387206309 is the 9-circuit member of the Beau 38720 barrier block series — a single-row, 2-wall dual-barrier strip with a 0.375 inch (9.53 mm) pitch and a 300 V rating at 15 A per circuit. The top termination uses steel screws with zinc clear-chromate finish; the bottom terminates to a through-hole PC pin for board mounting. It accepts 14–22 AWG wire entries across 9 positions, housed in a black UL94 V-0 thermoplastic rated from -40 °C to 100 °C.
Where barrier blocks fit
Beau-style 2-wall barrier strips are used as factory-floor and panel-level distribution points — they clamp wire under screw pressure, provide a visible physical barrier between adjacent circuits, and are specified where a technician needs to see and torque each connection individually. The dual 2-wall barrier construction gives added creepage distance compared to a open-style strip, which matters at higher voltages or in dirty environments. The through-hole PC pin bottom suits chassis-mount or panel-mount boards where the pin field is wave-soldered or hand-soldered in.
Lifecycle and compliance
The 387206309 carries an Active product status and is ROHS3 Compliant. No official successor order code appears in the on-record lifecycle data, and no last-time-buy notice is on file. Sourcing is quoted to order against BOM quantity — confirm the 9-circuit position count matches the panel wiring diagram before committing, particularly if replacing a like-for-like barrier strip that used a different pitch or a higher circuit count.