The 3-1971772-4 is a single-row, 4-position, panel-mount cap housing from the TE Connectivity Power Triple Lock series. Constructed from blue, PBT glass-filled material, it is rated for a standard operating temperature of 105°C. This housing features a Key C configuration for proper mating alignment and is designed for panel thicknesses ranging from 1.0mm to 2.0mm. It meets the UL 94 V-0 flammability rating and is glow wire compliant in accordance with IEC 60335-1. This component is ideal for providing a secure and reliable keyed connection interface in various power applications requiring robust panel mounting.