DBT71210U is a thermal circuit breaker manufactured by Sensata Technologies. It is a bi-metallic element that protects against hazardous over-current situations by detecting the temperature rise caused by an overload. It is UL1077 listed for use in the United States and Canada, and comes with a DIN rail mount for easy installation. The breaker has a 10A amp rating which is typical for most residential applications and has quick-make, quick-break contacts for positive switching. It is suitable for applications such as motor control, welding, power conversion, and agricultural/industrial machinery. The breaker has a manual switch that allows you to reset the device after a trip, and also features a voltage rating of 25 Vac.