What it is
The 387203203: The Beau 38720 is a single-row, 3-circuit barrier terminal strip rated 15 A per circuit at 300 V, with a 0.375-inch (9.53 mm) pitch and dual-wall barrier construction. The housing is black thermoplastic; the terminal screws are steel with zinc clear-chromate finish, and the flange mounting provision is built into the body — making this a fixed-panel termination point rather than a free-standing DIN-rail block. Wire entry is top-side via individual screw terminals accepting 14–22 AWG; the bottom face exposes insulated solder turrets for through-hole board attachment. Operating range spans -40°C to 100°C — wide enough for most industrial enclosure environments without derating to the ceiling.
What the ratings mean for the fit
The 15 A per-circuit rating governs branch-circuit distribution within a panel — this is a panel-wiring interconnect, not a bus-bar joint. If the load draws closer to 15 A continuous, check the derating curve against the full enclosure temperature before committing. The 300 V rating defines the circuit voltage ceiling — verify the design voltage sits comfortably within this limit, especially in three-phase builds. The 14–22 AWG range covers the stranded hookup wire common in control panels; if the harness spec calls for larger conductors, a different block series is needed — the wire gauge range is a hard limit on this part.
Lifecycle and compliance
The 387203203 is Active and ROHS3 Compliant — no end-of-life notice on record. The Beau 38720 series base product number is 038720; the full order code carries the circuit count in the suffix position — confirm the 3-circuit designation matches the BOM line before quoting.