SIEMENS 3RW3016-1BB04

Siemens SIRIUS Soft Starter 4kW 3RW3016-1BB04 Description The Siemens 3RW3016-1BB04 is a compact and efficient soft starter from the renowned SIRIUS series. It is designed for smooth starting of three-phase asynchronous motors, significantly reducing mechanical stress and electrical network load during startup. This unit is ideal for applications such as pumps, fans, and conveyors, offering a reliable solution for motor control. Specifications Manufacturer: Siemens Series: SIRIUS Type: Soft Starter Model: 3RW3016-1BB04 Control Supply Voltage (Us): 24V AC/DC Operating Voltage (Ue): 200 to 480V AC Rated Operational Current (Ie): 9 A at 40 deg C Motor Power Rating: 4 kW at 400 V Connection Type: Screw terminals Label Info AC Semiconductor Motor Starter IEC 60947-4-2 P AC-3(KW): 2.2 at 230V, 4 at 400V Overload Protection with 3RV, 3RU or 3RB required Application This soft starter is perfectly suited for standard applications in industrial automation, including starting fans, pumps, compressors, and conveyor systems where a gentle start is required to protect the product or the machinery. Country of Origin Made in Czech Republic. CO2 Impact By purchasing this reused component, you are contributing to a circular economy and saving approximately 11.2 kg of CO2, which is equivalent to driving a car for 56 km. Availability This item is in stock and ready for immediate dispatch. Order now from profideals for expert support and fast delivery. FAQ Question?What is the main advantage of using this 3RW30 soft starter over a direct-on-line (DOL) starter? The primary advantage is the reduction of mechanical stress on the motor and coupled machinery. By ramping up the voltage, it avoids the high inrush currents and torque jolts typical of a DOL starter, leading to a longer lifespan for belts, gears, and the motor itself. Question?Does this soft starter require a separate overload relay? Yes, the label explicitly states “OVERLOAD PROTECTION WITH 3RV, 3RU OR 3RB REQUIRED”. This unit provides soft starting and stopping functions but relies on an external motor protection circuit breaker (like a 3RV) or an overload relay (like a 3RU) for thermal overload protection. Question?Can this soft starter be used for single-phase motors? No, the Siemens SIRIUS 3RW30 series is specifically designed for three-phase asynchronous (induction) motors. Using it with a single-phase motor is not supported and may damage the unit or the motor. profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. Last Update: Friday, March 13, 2026