3RW40系列软启动器型号电流功率3RW4055-2BB44134A75KW3RW4056-2BB44162A90KW3RW4073-2BB44230A132KW3RW4074-2BB44280A160KW3RW4075-2BB44356A200KW3RW4076-2BB44432A250KW3RW4055-6BB44134A75KW3RW4056-6BB44162A90KW3RW4073-6BB44230A132KW3RW4074-6BB44280A160KW3RW4075-6BB44356A200KW3RW4076-6BB44432A250KW)