What it is and where it sits in the Beau 38720 series
The Molex 387207211 is the 11-circuit member of the Beau 38720 barrier block series — a single-row, dual-wall barrier strip with a 0.375" (9.53 mm) pitch designed for through-hole panel and chassis wiring. Each circuit accepts a single wire entry on the top via a nickel-plated brass screw and terminates to a PC pin on the bottom for PCB attachment, making this a board-to-wire bridge in panel wiring assemblies.
What the ratings mean for the circuit and wire choice
The 15 A per circuit rating at 300 V sits comfortably within the 14–22 AWG window the block accepts — the 14 AWG conductor carries the 15 A ceiling cleanly, so the block itself is not the current bottleneck. The dual-wall barrier construction gives the screw cluster physical separation that matters in dense panel wiring where adjacent terminations could short if the wall were single. The nickel screw finish resists the oxidation that unplated brass picks up in industrial atmospheres, but for harsh-service field replacement cycles, verify that the screw torque spec in the product drawing holds the wire under vibration — barrier blocks rely on clamp pressure rather than a spring cage.
Compliance and environmental rating
The black thermoplastic housing carries a UL94 V-0 flammability rating, which satisfies the material requirement in most industrial panel enclosures. RoHS3 compliance covers EU industrial automation and equipment builds. The −40 °C to 100 °C operating range covers standard factory-floor temperature extremes; if the block is panel-mounted near a heat source, derate current per the derating curve in the product drawing.