Ranco MXF-544002-001 Fan Variable Speed Control Switch is a controller for adjusting the speed of a fan connected to a 277V AC supply. It operates at 50/60 Hz and is rated for up to 5 FLA (full-load amps). This model provides variable-speed control rather than a simple on/off switch, allowing you to set the airflow to meet heating, ventilation, or cooling needs in 277V circuits. Use cases include any 277V fan installation where current draw remains at or below 5 amps at full load.
