The Hirose DF22L-4S-7.92C(28) is a 4-position, single-row receptacle housing from the EnerBee DF22 series, designed for free-hanging (in-line) wire-to-board or wire-to-wire power interconnects. The 7.92 mm pitch provides generous creepage distance for higher-voltage applications, and the red colour aids visual identification in a harness. The latch lock secures the mating header, making it suitable for environments with moderate vibration — think industrial control cabinets, power supplies, or battery packs where a positive lock prevents accidental disconnection.
The polarizing key prevents mis-mating with a non-keyed header, a useful safeguard when multiple similar connectors share a panel.
No official cross-reference or second-source is on record; the DF22 series is Hirose-proprietary in its keying and latch geometry.