The A126S1YZQ is a miniature single-pole, double-throw (SPDT) toggle switch from the A series. It is configured with a momentary ON-NONE-ON circuit and features a standard 0.410" bat-style lever with a bright chrome finish. The switch is designed for panel mounting with a .350" threaded bushing and provides solder lug terminals for termination. Its coin silver contacts are rated for 6A at 125 VAC or 6A at 28 VDC, ensuring reliable performance over 60,000 make-and-break cycles. This switch is suitable for various control panel applications requiring a durable, three-position momentary switch.