A.194.2~245.68N B.195.2~246.68N C.196.2~247.68N D.197.2~248.68N
A.DC110V B.DC220V C.DC380V D.DC500V
A.蓄電池開(kāi)關(guān) B.受電弓故障隔離開(kāi)關(guān) C.接地隔離開(kāi)關(guān) D.劈相機(jī)故障隔離開(kāi)關(guān)