Fits PANASONIC NN-SU686S microwave is operating safely and efficiently with this genuine for PANASONIC Microwave Thermal Cutoff Switch. This switch is designed to prevent overheating and potential damage to the microwave by cutting off power to the heating element when temperatures become too high. Built with high-quality materials, this thermal switch is a reliable and durable replacement for your original part. It is easy to install and replace with basic tools, ensuring your microwave remains protected in the long run.