A cooktop appliance includes a bimetallic switch is positioned adjacent an electrical heating element. A first electrical conduit is coupled to a first terminal of the electrical heating element and is configured to operate at a first voltage, L1, with respect to ground. A second electrical conduit is configured to operate at a second voltage, L2, with respect to ground. A relay is configured such that the relay connects the second electrical conduit to a second terminal of the electrical heating element when the bimetallic switch is in the first configuration and is also configured such that the relay connects a neutral electrical conduit to the second terminal of the electrical heating element when the bimetallic switch is in the second configuration.