Except for the following content, Chapter 1 of GB/T 10963.1-2020 applies. Add at the end of the first paragraph: This part of GB/T 10963 specifies supplementary technical requirements applicable to single pole and two-pole circuit breakers operating in DC circuits. The rated DC voltage of a single pole circuit breaker shall not exceed 220 V, the second pole shall not exceed 440 V, the rated current shall not exceed 125A, and the rated DC short-circuit capacity shall not exceed 10000 A. Note: This section is applicable to circuit breakers that can connect and disconnect AC current as well as DC current. Delete paragraphs 11 and 12. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. Chapter 2 of GB/T 10963.1-2020 applies, adding the following content: GB/T 10963.1-2020 Electrical Accessories - Circuit Breakers for Overcurrent Protection in Household and Similar Places: Part 1; Circuit breakers for AC (IEC 60898-1:2015.1DT)
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