What it is
The Molex 387700114 is a 14-circuit dual-row barrier terminal block in the Beau 38770 series, operating at 0.375 inch (9.53 mm) pitch with a 15 A per-circuit rating at 300 V. The black PBT housing carries a UL94 V-0 flammability rating and mounts directly to the chassis or panel face via the integral flange — the flange distributes clamp load so the housing does not crack under repeated torque at the mounting bosses. Twenty-eight wire entry slots accept 14-22 AWG conductors; each circuit is a paired entry across the dual-wall barrier that physically isolates adjacent conductors. Top termination is screw-actuated; the bottom is closed, so no live rear face is exposed when the block is panel-mounted in a wiring compartment.
Where this class is used
Barrier terminal blocks like the 387700114 are the go-to for power distribution in industrial enclosures, motor control cabinets, and panel builds where a technician needs to land multiple unsoldered conductors under screw pressure. The dual-wall barrier prevents a stranded conductor from bridging between adjacent circuits when the block is jarred or when thermal cycling loosens a termination — an issue that open-face or single-wall designs are more vulnerable to. The flanged mounting and closed rear face suit in-panel and through-panel routing alike, and the PBT housing holds up under the thermal environment inside a Class-B or Class-F motor starter enclosure.