DS1-30-0003 is a 30Amp, 250VAC rated, Single Pole Thermal Magnetic circuit breaker made by Schurter. It is a mechanically-latched, plug-in-style switch that is UL Recognized, CSA Certified, VDE Certified and ENEC Certified. This particular switch has trip-free technology which means it will not reset while the fault is present, helping to ensure personal safety. It is designed for industrial applications such as in control panels, UPS systems and other electrical equipment.