What this is
The Molex 387216704 is the 4-circuit member of the Beau 38721 series, a single-row barrier block designed for chassis and panel wiring in industrial automation and control applications. At 0.375 inches (9.53 mm) pitch, it accepts 14–22 AWG conductors via top-entry screws, with a quick-connect (0.187 inch) insulated bottom exit for downstream circuit take-off.
Ratings that drive the fit
The 15 A per-circuit rating at 300 V sets the primary duty envelope — this is a mid-power distribution block, not a signal-level component. The glass-filled PBT housing carries a UL94 V-0 flammability rating, which matters for enclosed-panel or factory-floor installations where material ignition resistance is a code requirement. Operating range is -40 °C to 100 °C, covering most industrial ambient conditions without special derating. The dual-wall barrier construction provides phase-to-phase isolation within the 4-circuit stack. The flange feature on the housing allows a fixed mechanical reference on the panel surface — the mounting holes are defined by the chassis cutout rather than by a separate DIN rail foot.
Sourcing and lifecycle
Quoted to order against BOM quantity — confirm the 4-circuit position count and the 0.375-inch panel pitch against your existing cutout or wiring diagram before committing a second-source search.
Pitch vs the Eurostyle peers
The current and voltage ratings also diverge: the 387216704 is rated 15 A / 300 V, whereas the 0391002502 runs 63 A / 600 V at 2 circuits and the 0391002012 runs 30 A / 600 V at 12 circuits — neither is a form-fit-function substitute for this line item.