三菱热继电器TH-N20KP电流范围中间值（A）电流范围0.240.2-0.320.350.28-0.420.50.4-0.60.70.55-0.850.90.7-1.11.31-1.61.71.4-22.11.7-2.52.52-33.62.8-4.454-66.65.2-897-11119-131512-181916-22)