The electrical switch is designed to give feedback to the engine management system. The ECM controls the A/C system on modern vehicles. In earlier vehicles, they are used to directly turn the compressor off to avoid compressor failure.
gpd Switch 1711470
ACDelco 1551017, 1-800-Radiator SW31, 1-800-Radiator SW-31, ACDelco 15-51017, Four Seasons 20929, Gilmore Products ASW80-1873, Mitsubishi MR117068, NAPA Temp 207753, Sunair Products CP0293, Sunair Products MC1238, Sunair Products MC-1238, UAC SW10030, UAC SW10030C, UAC SW10030S, Toyota 8864504060, Toyota 8864534010, Toyota 88645-04060, Toyota 88645-34010