The Schneider Electric TM100C16RN is a 16 A, 3-pole thermal-magnetic circuit breaker from the Compact NSX series. It is a fixed version model designed for panel mounting and provides protection against overloads and short-circuits. The "RN" suffix indicates it is equipped with a Micrologic 1.0-1.3 electronic trip unit offering adjustable long-time protection but no ground-fault or short-circuit settings.