A9Z11280 is a three phase, multi-mount selector based rotary switch from Schneider Electric. It is used for changing the direction of a motor’s rotation or switching between multiple power supply sources. The switch has one NO (normally open) and one NC (normally closed) set of contacts. It features a quick-make, quick-break operation and is rated for a current of 16 A at 400 VAC. It also has a special “hold” feature, which allows it to be used as an emergency stop switch, so that when the switch is released, it remains in the “off” position. The switch is IP54 rated, meaning it provides dust and water protection up to a certain level. It also has a compact and durable design, making it suitable for use in harsh industrial environments.