The 1020021 is a thermal-magnetic miniature circuit breaker designed for supplementary protection in electrical systems. It features snap-action technology to reduce wear and tear on internal contacts and eliminate contact welding. The device has a 3-position configuration, a rated current of 7A, and a voltage rating of 277VAC. Mountable on DIN rails, it provides reliable overload and short-circuit protection suitable for various applications within electrical distribution systems.
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