Designed to provide circuit protection for process control systems and instrumentation, Thermal-Magnetic circuit breakers are only 12.2 mm wide and mount on DIN rails. TMC series devices come in 18 rated current values up to 16A and offer a toggle switch with alarm contact. The series also comes with fast or normal blow trip characteristics and one, two or three position main current paths. TMC 42-01 and 42-02 series devices are single- or double-pole TMC breakers with tease-free, trip-free snap-action mechanism and two-button operation; current rating is up to 16A. TMC 91 H series are 18 mm wide with current ratings up to 63A; the breakers offer single-, two- or three-pole circuits.