What it is and where it sits in the series
The Beau 387116703 is a 3-circuit dual-wall barrier block in the Beau 38711 series, finished in black thermoplastic with zinc-chromate steel terminal screws. The dual-wall (2-wall) barrier construction adds physical separation between adjacent contact zones — relevant when panel technicians or maintenance crews are working near live terminations or when the assembly is subject to vibration and thermal cycling in the field.
The key ratings and what they mean for the fit
Pitch is 0.375 inch (9.53 mm) — this is the hole spacing and routing density driver for chassis or panel cut-outs. At this pitch the strip sits comfortably in standard industrial enclosures without crowding adjacent components. Wire gauge range is 14-22 AWG, which brackets most branch wiring in plant automation and power-distribution panels — the 15 A per circuit rating maps cleanly onto 14 AWG under most derating curves. Voltage rating is 300 V, suited for control-level and branch-level AC or DC wiring. Top termination is screw-clamp (accepts a flat-blade driver) and bottom is an insulated 0.187 inch quick-connect tab — confirm the routing path suits the enclosure geometry before specifying. The flange feature provides a secondary mechanical anchor at the connector body — the mounting screw points carry the panel load rather than the wire entries. Operating range is -40 to +100 degrees C, which covers refrigerated plant sections through heated enclosures. Flammability is UL94 V-0.
Where this class of connector is used
Barrier strips like the 387116703 serve as fixed junction points in industrial control panels, motor starter circuits, and instrumentation cabinets — anywhere wire-to-wire or wire-to-panel connections need to be made permanently, readably, and without a mating half that could be unplugged accidentally. The dual-wall barrier and flange mounting suit environments where vibration or physical contact with the panel face is a concern. ROHS3 compliance keeps it current for new equipment builds in regulated markets.
Lifecycle and sourcing
The 387116703 carries an Active product status with no listed successor or cross-reference. ROHS3 Compliant is on record. It sources to order against the BOM quantity — the pitch, circuit count, voltage class, and flange-mount confirmation together determine whether this fills the panel position without rework.