What the ratings mean
The 1720420406: The 30 A current rating per circuit is the headline figure — it tells you this is a power-interconnect part, not a signal-density header. The 600 V voltage ceiling covers most industrial AC and DC bus voltages in the same footprint. Contact finish is silver at 100.0 µin (2.54 µm), which is thicker than typical gold flash on comparable headers; silver carries more current per unit cross-section and resists arc erosion better at power switching events. The operating range of -40°C to 125°C with a glass-filled LCP housing puts this squarely in industrial and some powertrain applications where ambient temperatures climb. The 125°C ceiling is the housing limit; derate the current per the temperature rise curve in the product drawing when the board runs hot. Board lock features hold the header square during wave or hand-solder reflow, and the finger-proof shrouding prevents accidental contact with live blades during assembly — a safety requirement in field-wired equipment.
Mating half
This header mates with the matching Super Sabre receptacle housing and crimp terminals for the series — confirm the terminal wire-range and current rating match your harness spec before specifying the mating half. The locking ramp on the header body engages the receptacle latch for positive retention under vibration.