Chint NB1-63 4P C20 circuit breaker designed for safety in electrical circuits. This device features a 4-pin configuration, a 20 ampere current rating, and a short-circuit capacity of 6 kA. It is typically used in residential and commercial applications to protect electrical systems at 240 V to 415 V. https://elecena.pl/product/28827394/chint-179744-nb1-63-circuit-breaker-4p-20a-6ka-240-415v-iec-60947-2 2025-05-27 https://elecena.pl/product/28827394/chint-179744-nb1-63-circuit-breaker-4p-20a-6ka-240-415v-iec-60947-2 2025-07-04