The 5666AB is a four-pole miniature toggle switch from APEM's 5000 series, designed for panel mounting with a threaded bushing of Ø 6.35 mm (1/4-40UNS). It features solder lug terminals and supports multiple contact configurations with maintained and momentary switching functions across all four poles. The switch includes a standard lever actuator with a 24° keyway and is available with various contact materials suitable for both low and high current applications. The 5666AB is UL, CSA, and CECC approved, making it suitable for industrial control panels, instrumentation, and consumer electronics requiring reliable multi-pole switching with robust mechanical construction and multiple sealing options for terminal or front panel protection.