What it is
The 387207519: Wire entry accepts 12-22 AWG conductors. Top termination is screws with a captive plate — the plate keeps the screw from backing out under vibration or thermal cycling in the field, so terminations hold without periodic retightening. Bottom termination exits as PC pins for through-hole soldering to a PCB — this is a board-stacking barrier block, not a panel/chassis mount. The dual-wall (2-wall) barrier construction provides physical segregation between adjacent circuits, which is the structural reason barrier strips handle higher voltage ratings than open-frame headers of equivalent pitch. The housing is black thermoplastic rated UL94 V-0, operating from -40°C to 100°C — suited for industrial enclosure environments where heat and flammability compliance matter.
Where barrier strips fit
Barrier terminal strips like the 387207519 sit at the boundary between field wiring and PCB-level interconnect in industrial machines — motor drives, power supplies, and instrumentation panels where discrete conductors need a single secure termination point before connecting to a board. The captive-screw top and the dual-wall barrier together make it a field-wiring component that does not need a mating housing or crimp terminal to function — it is the termination point itself, not an intermediate interconnect.
Lifecycle and compliance
The 387207519 carries an Active product status and is ROHS3 Compliant — the sourcing posture is quoted-to-order against BOM quantity with no official LTB or successor on record.