Two-circuit header with board lock for vibration resistance
The 1724470402: This is a 2-position, 4.20mm pitch, through-hole header from the Mini-Fit Jr 172447 series. The housing is red PA66 nylon rated UL94 V-0 and glow wire compliant, which means it meets the flame and ignition resistance requirements for equipment inside an enclosure — typical for industrial control panels and telecom infrastructure where a fault arc must not propagate. The per-contact current rating varies by wire gauge; in practice, the 4.20mm pitch and dual-row layout support up to 9 A per circuit with 18 AWG wire in free air.
Mates with Mini-Fit Jr receptacle — confirm circuit count
This header mates with any Mini-Fit Jr receptacle housing that accepts 2 circuits in a single row — the 4.20mm pitch and locking ramp are standard across the series. The mating receptacle uses crimp terminals (Molex 5556 series for 18-24 AWG); the header pins are square male pins that wipe the receptacle contact beams on insertion.