当电路过载时，热脱扣器的热元件发热使双金属片上弯曲，推动自由脱扣机构动作，主触点断开主电路。

当电路欠电压时，欠电压脱扣器的衔铁释放，也使自由脱扣机构动作，主触点断开主电路。

当按下分励脱扣按钮时，分励脱扣器衔铁吸合，使自由脱扣机构动作，主触点断开主电路。

vT4S250 PR222DS/P-LSI R160 WMP 4P
T4S250 PR222DS/P-LSI R250 PMP 3P
T4S250 PR222DS/P-LSI R250 PMP 4P
T4S250 PR222DS/P-LSI R250 WMP 3P
T4S250 PR222DS/P-LSI R250 WMP 4P
T4S250 PR222DS/P-LSIG R100 FF 3P
T4S250 PR222DS/P-LSIG R100 FF 4P
T4S250 PR222DS/P-LSIG R160 FF 3P
T4S250 PR222DS/P-LSIG R160 FF 4P
T4S250 PR222DS/P-LSIG R250 FF 3P
T4S250 PR222DS/P-LSIG R250 FF 4P
T5S400 PR222DS/P-LSI R320 PMP 3P
T5S400 PR222DS/P-LSI R320 PMP 4P
T5S400 PR222DS/P-LSI R320 WMP 3P
T5S400 PR222DS/P-LSI R320 WMP 4P
T5S400 PR222DS/P-LSI R400 PMP 3P
T5S400 PR222DS/P-LSI R400 PMP 4P
T5S400 PR222DS/P-LSI R400 WMP 3P
T5S400 PR222DS/P-LSI R400 WMP 4P
T5S400 PR222DS/P-LSIG R320 FF 3P
T5S400 PR222DS/P-LSIG R320 FF 4P
T5S400 PR222DS/P-LSIG R400 FF 3P
T5S400 PR222DS/P-LSIG R400 FF 4P
T5S630 PR222DS/P-LSI R630 PMP 3P
T5S630 PR222DS/P-LSI R630 PMP 4P
T5S630 PR222DS/P-LSI R630 WMP 3P
T5S630 PR222DS/P-LSI R630 WMP 4P
T5S630 PR222DS/P-LSIG R630 FF 3P
T5S630 PR222DS/P-LSIG R630 FF 4P
T6S630 PR222DS/P-LSI R630 WMP 3P
T6S630 PR222DS/P-LSI R630 WMP 4P
T6S630 PR222DS/P-LSIG R630 FF 3P
T6S630 PR222DS/P-LSIG R630 FF 4P
T6S800 PR222DS/P-LSI R800 WMP 3P
T6S800 PR222DS/P-LSI R800 WMP 4P
T6S800 PR222DS/P-LSIG R800 FF 3P
T6S800 PR222DS/P-LSIG R800 FF 4P
T7S1000 PR331/P-LSIG R1000 FF 3P
T7S1000 PR331/P-LSIG R1000 FF 4P
T7S1000 PR332/P-LSIG R1000 FF 3P
T7S1000 PR332/P-LSIG R1000 FF 4P
T7S1000M PR231/P-LSI R1000 FF 3P
T7S1000M PR231/P-LSI R1000 FF 4P
T7S1000M PR232/P-LSI R1000 FF 3P
T7S1000M PR232/P-LSI R1000 FF 4P
T7S1000M PR332/P-LSI R1000 FF 3P
T7S1000M PR332/P-LSI R1000 FF 4P
T7S1250 PR331/P-LSIG R1250 FF 3P
T7S1250 PR331/P-LSIG R1250 FF 4P
T7S1250 PR332/P-LSIG R1250 FF 3P
T7S1250 PR332/P-LSIG R1250 FF 4P
T7S1250M PR231/P-LSI R1250 FF 3P
T7S1250M PR231/P-LSI R1250 FF 4P
T7S1250M PR232/P-LSI R1250 FF 3P
T7S1250M PR232/P-LSI R1250 FF 4P
T7S1250M PR332/P-LSI R1250 FF 3P
T7S1250M PR332/P-LSI R1250 FF 4P
T7S1600 PR331/P-LSIG R1600 FF 3P
T7S1600 PR331/P-LSIG R1600 FF 4P
T7S1600 PR332/P-LSIG R1600 FF 3P
T7S1600 PR332/P-LSIG R1600 FF 4P
T7S1600M PR231/P-LSI R1600 FF 3P
T7S1600M PR231/P-LSI R1600 FF 4P
T7S1600M PR232/P-LSI R1600 FF 3P
T7S1600M PR232/P-LSI R1600 FF 4P
T7S1600M PR332/P-LSI R1600 FF 3P
T7S1600M PR332/P-LSI R1600 FF 4P
T4S250 PR222DS/P-LSIG R100 PMP 3P
T4S250 PR222DS/P-LSIG R100 PMP 4P