The 1019990 is a thermal-magnetic miniature circuit breaker (MCB) from the TMC 7 series, designed for supplementary protection in electrical circuits. It features a single pole with a lever actuator and uses snap-action technology to minimize contact welding and reduce wear on internal contacts. Suitable for use in environments with temperatures ranging from -35°C to +70°C, it provides overload and short-circuit protection rated at 50A. The device has an IP20 rating, a height of 81.4 mm, and operates at a rated voltage of 277VAC or 60VDC. It is intended for DIN rail mounting and conforms to UL 1077 standards.
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