Inter control smarty hot thermal cut outs 16a 230v inter control 162571004d02 the smarty hot thermal cut out features a voltage maintained latch function that is designed to provide protection for applications until the power is removed a bimetallic disc is used as the sensor and when the preset temperature is reached the bimetallic disc operates and opens the electrical circuit when this happens it also activates a thermal resistor that heats the bimetallic disc and prevents it from snapp