What this 4-position shrouded header does on your board
The 282818-4 is a 4-position male pin header from TE's Buchanan series, with a 0.400" (10.16mm) pitch that sets the board footprint for terminal block interconnects. The four-sided shrouding guides the mating plug and protects the pins from accidental shorting during handling. Rated 15 A at 600 V per UL, this header handles industrial power levels — the 10.16mm pitch keeps creepage and clearance distances adequate for the 600 V working voltage.
Mating and termination: what plugs with this header
This shrouded header mates with Buchanan series plug connectors that accept 10.16mm pitch terminal blocks — typically the screw-clamp or spring-clamp plugs from the same series. The four-sided shroud ensures proper alignment and keying to prevent mismating.