The 1019971 is a thermomagnetic miniature circuit breaker designed for supplementary protection against overloads and short circuits. It features a 3-position, lever-actuated mechanism suitable for DIN rail mounting. With a current rating of 63 A and a voltage rating of 277 VAC, it provides reliable circuit protection. The device is a three-pole configuration with screw connection terminals accommodating cross sections from 1 mm² to 35 mm². Its compact design and UL 1077 compliance make it ideal for use in various electrical applications requiring secure overload and short-circuit protection.
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