西门子软启动器3RW系列可以限制起动电流和起动转矩，有效防止机械冲击以及电网电压降。通过相位控制降低电机电压，并能够在可调起动时间内将电机电压增加到电网电压。软起动和软停车可以保证连接设备上的应力最小化，确保生产运营平稳。采用两相控制的SIRIUS 3RW30/属于标准型，最适用于功率55KW的标准应用。3RW40也属于标准型，适用范围为75～250KW，3RW44属于高性能型产品，适用范围为15～1200KW。
应用：通风、泵、传送、压缩机、风机、混合机、铣床、碎石机。
西门子软启动器3RW系列型号：
3RW2122-1BG01
3RW4422-1BC44
3RW4443-6BC44
3RW2124-1BG01
3RW4422-1BC34
3RW4443-6BC34
3RW2125-1BG01
3RW4422-3BC44
3RW4456-2BC44
3RW2221-1AB15
3RW4422-3BC34
3RW4427-3BC34
3RW4443-2BC34
3RW4447-2BC34
3RW4456-2BC34
3RW2223-1AB15
3RW4422-1BC45
3RW4427-1BC45
3RW4443-6BC45
3RW4447-6BC45
3RW4456-6BC45
3RW2225-1AB15
3RW4422-1BC35
3RW4427-1BC35
3RW4443-6BC35
3RW4447-6BC35
3RW4456-6BC35
3RW2226-1AB15
3RW4422-3BC45
3RW4427-3BC45
3RW4443-2BC45
3RW4447-2BC45
3RW4456-2BC45
3RW2227-1AB15
3RW4422-3BC35
3RW4427-3BC35
3RW4443-2BC35
3RW4447-2BC35
3RW4456-2BC35
3RW2228-1AB15
3RW4422-1BC46
3RW4427-1BC46
3RW4443-6BC46
3RW4447-6BC46
3RW4456-6BC46
3RW2230-1AB15
3RW4422-1BC36
3RW4427-1BC36
3RW4443-6BC36
3RW4447-6BC36
3RW4456-6BC36
3RW2231-1AB15
3RW4422-3BC46
3RW4427-3BC46
3RW4443-2BC46
3RW4447-2BC46
3RW4456-2BC46
3RW2234-0DB15
3RW4422-3BC36
3RW4427-3BC36
3RW4443-2BC36
3RW4447-2BC36
3RW4456-2BC36
3RW2235-0DB15
3RW4423-1BC44
3RW4434-6BC44
3RW4444-6BC44
3RW4453-6BC44
3RW4457-6BC44
3RW2236-0DB15
3RW4423-1BC34
3RW4434-6BC34
3RW4444-6BC34
3RW4453-6BC34
3RW4457-6BC34
3RW2236-0DB16
3RW4423-3BC44
3RW4434-2BC44
3RW4444-2BC44
3RW4453-2BC44
3RW4457-2BC44
3RW2236-0DB18
3RW4423-3BC34
3RW4434-2BC34
3RW4444-2BC34
3RW4453-2BC34
3RW4457-2BC34
3RW2238-0DB15
3RW4423-1BC45
3RW4434-6BC45
3RW4444-6BC45
3RW4453-6BC45
3RW4457-6BC45
3RW2238-0DB16
3RW4423-1BC35
3RW4434-6BC35
3RW4444-6BC35
3RW4453-6BC35
3RW4457-6BC35
3RW2240-0DB15
3RW4423-3BC45
3RW4434-2BC45
3RW4444-2BC45
3RW4453-2BC45
3RW4457-2BC45
3RW2240-0DB16
3RW4423-3BC35
3RW4434-2BC35
3RW4444-2BC35
3RW4453-2BC35
3RW4457-2BC35
