What the ratings mean
The 387409704: The 15 A per circuit rating at 300 V sits squarely in the moderate-power panel interconnect range — panel lighting bus, AC distribution leg, or low-voltage DC branch. The 14-22 AWG wire range covers the hookup wire gauges used in most industrial enclosures. Four wire entries (one per circuit) means each circuit accepts one conductor on the screw side; there is no double-stack entry, so field splicing onto a single terminal requires a fork or ring lug rated for the same barrel gauge. The -40°C to 100°C operating window is wide enough for unconditioned enclosures, but the 15 A figure is a per-circuit rating — thermal rise in a fully loaded 4-circuit block in a closed panel will be higher than in free air; confirm the ambient and derate if the enclosure runs hot.
Sourcing and compliance
The 387409704 is Active and ROHS3 Compliant — no lifecycle watch on record. Quoted to order against BOM quantity; confirm your circuit count match (4 positions) and the panel flange mounting hole pattern before committing. The series base is Beau 38740; the matching mating half for field termination is the corresponding 38740-series barrier strip cover or the wire it receives — verify the ferrule or lug type on the field side to confirm full insertion under the screw clamp.