3RB12和3RB22接地故障保护功能
A3：3RB12有内部接地故障和外部接地故障两种类型接地故障保护。
3RB12可通过型号的不同来选择是否带内部接地故障功能；外部接地故障保护功能本身自带，但是需要加装3UL 零序互感器来实现（接线见下图）。
3RB22只有内部接地故障保护且需要通过加装功能模块来实现。
3RB2026-1SD0
3RB2026-2NB0
3RB2026-2ND0
3RB2026-2PB0
3RB2026-2PD0
3RB2026-2QB0
3RB2026-2QD0
3RB2026-2RB0
3RB2026-2RD0
3RB2026-2SB0
3RB2026-2SD0
3RB2036-1QB0
3RB2036-1QD0
3RB2036-1QW1
3RB2036-1QX1
3RB2036-1UB0
3RB2036-1UD0
3RB2036-1UW1
3RB2036-1UX1
3RB2036-2QB0
3RB2036-2QD0
3RB2036-2QW1
3RB2036-2QX1
3RB2036-2UB0
3RB2036-2UD0
3RB2036-2UW1
3RB2036-2UX1
3RB2046-1EB0
3RB2046-1ED0
3RB2046-1EW1
3RB2046-1EX1
3RB2046-1UB0
3RB2046-1UD0
3RB2046-2EB0
3RB2046-2ED0
3RB2046-2EW1
3RB2046-2EX1
3RB2046-2UB0
3RB2046-2UD0
3RB2056-1FC2
3RB2056-1FF2
3RB2056-1FW2
3RB2056-1FX2
3RB2056-2FC2
3RB2056-2FF2
3RB2056-2FW2
3RB2056-2FX2
3RB2066-1GC2
3RB2066-1GF2
3RB2066-1MC2
3RB2066-1MF2
3RB2066-2GC2
3RB2066-2GF2
3RB2066-2MC2
3RB2066-2MF2
3RB2113-4NB0
3RB2113-4ND0
3RB2113-4PB0
3RB2113-4PD0
3RB2113-4RB0
3RB2113-4RD0
3RB2113-4SB0
3RB2113-4SD0
3RB2123-4NB0
3RB2123-4ND0
3RB2123-4PB0
3RB2123-4PD0
3RB2123-4QB0
3RB2123-4QD0
3RB2123-4RB0
3RB2123-4RD0
3RB2123-4SB0
3RB2123-4SD0
3RB2133-4QB0
3RB2133-4QD0
3RB2133-4QW1
3RB2133-4QX1
3RB2133-4UB0
3RB2133-4UD0
3RB2133-4UW1
3RB2133-4UX1
3RB2143-4EB0
3RB2143-4ED0
3RB2143-4EW1
3RB2143-4EX1
3RB2143-4UB0
3RB2143-4UD0
3RB2153-4FC2
3RB2153-4FF2
3RB2153-4FW2
3RB2153-4FX2
3RB2163-4GC2
3RB2163-4GF2
3RB2163-4MC2
3RB2163-4MF2
3RB2283-4AA1
3RB2283-4AC1
3RB2383-4AA1
3RB2383-4AC1
3RB2906-2BG1
3RB2906-2DG1
3RB2906-2JG1
3RB2913-0AA1
3RB2923-0AA1
3RB2956-2TG2
3RB2956-2TH2
3RB2966-2WH2
3RB2985-2AA0
3RB2985-2AA1
3RB2985-2AB1
3RB2985-2CA1
3RB2985-2CB1
3RB3016-1NB0
3RB3016-1NB0-ZX95
3RB3016-1NE0
3RB3016-1PB0
3RB3016-1PB0-ZX95
3RB3016-1PE0
3RB3016-1RB0
3RB3016-1RE0
3RB3016-1SB0
3RB3016-1SB0-ZX95
3RB3016-1SE0
3RB3016-1TB0
3RB3016-1TE0
3RB3016-2NB0
3RB3016-2NE0
3RB3016-2PB0
3RB3016-2PE0
3RB3016-2RB0
3RB3016-2RE0
3RB2016-1NB0
3RB2016-1ND0
3RB2016-1PB0
3RB2016-1PD0
3RB2016-1RB0
3RB2016-1RD0
3RB2016-1SB0
3RB2016-1SD0
3RB2016-2NB0
3RB2016-2ND0
3RB2016-2PB0
3RB2016-2PD0
3RB2016-2RB0
3RB2016-2RD0
3RB2016-2SB0
3RB2016-2SD0
3RB2026-1NB0
3RB2026-1ND0
3RB2026-1PB0
3RB2026-1PD0
3RB2026-1QB0
3RB2026-1QD0
3RB2026-1RB0
3RB2026-1RD0
3RB2026-1SB0
3RB3016-2SB0
3RB3016-2SE0
3RB3016-2TB0
3RB3016-2TE0
3RB3026-1NB0
3RB3026-1NE0
3RB3026-1PB0
3RB3026-1PE0
3RB3026-1QB0
3RB3026-1QB0-ZX95
3RB3026-1QE0
3RB3026-1RB0
3RB3026-1RE0
3RB3026-1SB0
3RB3026-1SB0-ZX95
3RB3026-1SE0
3RB3026-1VB0
3RB3026-1VE0
3RB3026-2NB0
3RB3026-2NE0
3RB3026-2PB0
3RB3026-2PE0
3RB3026-2QB0
3RB3026-2QB0-ZX95
3RB3026-2QE0
3RB3026-2RB0
3RB3026-2RE0
3RB3026-2SB0
3RB3026-2SB0-ZX95
3RB3026-2SE0
3RB3026-2VB0
3RB3026-2VE0
3RB3113-4NB0
3RB3113-4NE0
3RB3113-4PB0
3RB3113-4PE0
3RB3113-4RB0
3RB3113-4RE0
3RB3113-4SB0
3RB3113-4SE0
3RB3113-4TB0
3RB3113-4TE0
3RB3123-4NB0
3RB3123-4NE0
3RB3123-4PB0
3RB3123-4PE0
3RB3123-4QB0
3RB3123-4QE0
3RB3123-4RB0
3RB3123-4RE0
3RB3123-4SB0
3RB3123-4SE0
3RB3123-4VB0
3RB3123-4VE0
