Barrier Strip Terminal Block, 3 Circuits
The Molex 386307803 is a 3-circuit member of the Beau 38630 series of barrier strip terminal blocks. It is a single-row, through-hole component with a 0.438" (11.12 mm) pitch, designed for wire-to-board power distribution in industrial control panels, power supplies, and HVAC equipment. The dual-wall barrier construction provides physical isolation between adjacent circuits, reducing the risk of accidental shorting during field wiring or maintenance. Rated 25 A at 600 V, this block handles motor starter feeds, lighting contactor circuits, and similar branch-level loads where a single-row, low-circuit-count termination point is needed. The 12-24 AWG wire range covers most field-installed power and control conductors, and the screws with captive plate top termination clamp the wire without damaging stranded conductors.
The 0.438" (11.12 mm) pitch is a standard spacing for barrier blocks in this current class. It gives enough room between PC pins for routing board traces and for a screwdriver to comfortably reach the terminal screws without bridging adjacent positions. The through-hole PC pin bottom termination means the pins drop into the board and are wave-soldered — no press-fit or SMT reflow.