Check the listing for details. Middleby Control Panel Switch Assembly 28021-0044, 28021-0048, 44697, 46522. Condition: New. Listed at 44.98 USD. New Selector On/Off Switch For MIDDLEBY 46521 This clamping style selector switch is used on all Middleby Marshall Ovens. It is used to turn on/off the burner blower, heat, or conveyor. It is an aftermarket switch that has been designed to work even better than the OEM, since this switch clamps in place instead of the traditional nut that may work loose. Replaces part numbers: 28021-0062, 28021-0062, 27060-0012 Kit Includes: Control knob Mounting block Switch Compatible part numbers: Middleby 27060-0012 (switch) Middleby 28021-0062 (knob) Middleby 46521 (knob) Middleby 44697 (switch kit) Middleby 27060-0015 (switch assembly) Availability: In stock and ships today We are available 7 days a week. Shipping: Alaska, Hawaii and Puerto Rico call for rates