The Molex 395430004 is a 4-position PCB terminal block from the Eurostyle ESE 39543 series, using a 0.197" (5.00 mm) pitch. It is a single-level, side-entry (horizontal wire orientation) block designed for through-hole soldering to a PCB. The 10 A per-position current rating and 300 V voltage rating place it firmly in the power distribution class — this is not a signal-level interconnect. The 14-24 AWG wire range covers common building-wire and control-cable sizes, and the screw termination with leaf spring and wire guard provides a gas-tight connection that resists vibration loosening.
The screw torque spec of 0.34 Nm (3.0 Lb-In) is not optional — the steel screw and brass tin-plated contact rely on that torque for a repeatable, low-resistance termination. Over-torque cracks the PA66 housing; under-torque leaves a high-resistance joint that heats under load.
This is a wire-to-board terminal block — the wire terminates directly into the block via the screw clamp. There is no separate mating connector half; the block is the fixed board-side termination point. The side-entry orientation means wires enter parallel to the PCB surface, which suits shallow enclosures or bus-bar layouts where vertical clearance above the board is limited. The wire guard prevents the screw from damaging stranded conductors during termination.