The Siemens 3RW5073-2TB15 is a SIRIUS 3RW50 Basic Performance soft starter with a rated operational current of 250 A at 40°C. It is designed for smooth starting and stopping of three-phase asynchronous motors up to 132 kW at 400 V (75 kW at 230 V) in standard circuit.
Item No :
3RW5073-2TB15Order(MOQ) :
1 PiecePayment :
EXWProduct Origin :
CzechShipping Port :
WuhanLead Time :
3~5 daysWeight :
8kg| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Model | 3RW5073-2TB15 |
| Product Family | SIRIUS 3RW50 Basic Performance |
| Product Type | Soft Starter |
| Rated Operational Current (Ie) | 250 A at 40°C |
| Rated Operational Voltage (Ue) | 200–600 V AC |
| Rated Power (Standard Circuit, 400V) | 132 kW |
| Rated Power (Standard Circuit, 230V) | 75 kW |
| Control Supply Voltage | 110–250 V AC |
| Control Supply Frequency | 50/60 Hz |
| Number of Controlled Phases | 2 (two-phase control) |
| Integrated Bypass | Yes |
| Motor Overload Protection | Integrated electronic |
| Thermistor Motor Protection | Yes (T suffix) |
| Terminal Type | Spring-type terminals (2 suffix) |
| Digital Inputs | 1 |
| Digital Outputs | 3 |
| Adjustable Motor Current | 100–250 A (16 switch positions) |
| Power Loss (After Startup, 40°C) | 23 W |
| Protection Class | IP00 (IP20 with cover) |
| Dimensions (W x H x D) | 160 x 230 x 282 mm |
| Weight | Approx. 5 kg |
| Country of Origin | Czech Republic |
| Lifecycle Status | Delivery Release (PM300) |
| Model | Description | Typical Application |
|---|---|---|
| 3RW5073-2TB15 (this model) | 3RW50, 250A, 132kW @ 400V, spring terminals, thermistor | Standard motor starting with thermistor protection |
| 3RW5073-2AB15 | Same rating, analog output instead of thermistor | Applications requiring analog signal output |
| 3RW5073-6TB15 | Same rating, screw terminals instead of spring | Applications preferring screw connections |
| 3RW5072-2TB15 | 3RW50, 210A, 110kW @ 400V, spring terminals | Smaller motor applications |
| 3RW5074-2TB15 | 3RW50, 315A, 160kW @ 400V, spring terminals | Larger motor applications |
| 3RW5075-2TB15 | 3RW50, 370A, 200kW @ 400V, spring terminals | Higher power applications |
| 3RW5980-0HF00 | High-Feature HMI Module | Optional local display and parameterization |
| 3RW5980-0CS00 | PROFINET Communication Module | Network integration |
Q1: What is the primary function of the 3RW5073-2TB15?
It is a soft starter for smooth starting and stopping of three-phase asynchronous motors. It reduces starting current peaks, prevents supply voltage fluctuations, and minimizes mechanical stress on driven equipment. The integrated bypass allows a very compact construction, saves energy, and ensures low heat dissipation in the control cabinet.
Q2: What is the difference between the 3RW50 and 3RW52/3RW55 series?
The 3RW50 is the Basic Performance series, offering two-phase control with hybrid switching technology for standard applications up to 315 kW. The 3RW52 (General Performance) and 3RW55 (High Performance/Failsafe) series offer additional features such as three-phase control, torque control, and integrated safety functions (STO). The 3RW50 replaces the older 3RW40 series (size S6 to S12).
Q3: Does this soft starter include motor overload protection?
Yes. The 3RW5073-2TB15 includes integrated electronic motor overload protection without additional wiring. The trip class is adjustable, and intelligent monitoring functions protect the soft starter against overheating and the motor against overload.
Q4: What is the "Soft Torque" function?
The Soft Torque function ensures that the motor is started gently by optimizing the torque profile during the starting phase. This reduces mechanical stress on the driven equipment and extends the lifespan of belts, gears, and couplings — especially valuable for pump and conveyor applications.
Q5: What communication options are available for this soft starter?
The 3RW50 series supports optional plug-in communication modules for PROFINET, PROFIBUS, EtherNet/IP, and Modbus TCP. Without a communication module, the device can be parameterized via potentiometers. Various HMI modules are also available for installation in the control cabinet door.
The Siemens 3RW5217-3AC04 is a SIRIUS 3RW52 General Performance soft starter with a rated operational current of 38 A at 40°C. The device features three-phase control with hybrid switching technology for minimum power loss, an integrated bypass for energy savings, and electronic motor overload protection.
The Siemens 3RW5217-3TC05 is a SIRIUS 3RW52 General Performance soft starter with a rated operational current of 38 A at 40°C. It is designed for smooth starting and stopping of three-phase asynchronous motors up to 18.5 kW at 400 V in standard circuit (30 kW in inside-delta circuit).
The Siemens 3RW5224-1TC05 is a SIRIUS 3RW52 General Performance soft starter with a rated operational current of 47 A at 40°C. It is designed for smooth starting and stopping of three-phase asynchronous motors up to 22 kW at 400 V in standard circuit (45 kW in inside-delta circuit). The device features three-phase control, an integrated bypass for energy savings, electronic motor overload protection, and a thermistor motor protection input.
The Siemens 3RW5543-6HF04 is a SIRIUS 3RW55 Failsafe High Performance soft starter with a rated operational current of 210 A at 40°C. It includes a removable HMI module with color display, integrated bypass, torque control, and supports optional communication modules for PROFINET, PROFIBUS, Modbus, and EtherNet/IP.
The Siemens 3RW5073-2TB15 is a SIRIUS 3RW50 Basic Performance soft starter with a rated operational current of 250 A at 40°C. It is designed for smooth starting and stopping of three-phase asynchronous motors up to 132 kW at 400 V (75 kW at 230 V) in standard circuit.
The Siemens 6AV2124-0QC02-0AX0 is a SIMATIC HMI TP1500 Comfort Panel, a 15-inch widescreen touchscreen HMI designed for advanced industrial visualization. The panel includes integrated PROFINET and MPI/PROFIBUS-DP interfaces, 24 MB of configuration memory, and supports advanced features such as archiving, VB scripts, PDF viewers, OPC UA communication, and Sm@rtServer.
The Siemens 6AV2124-0JC01-0AX0 is a SIMATIC HMI TP900 Comfort Panel, a 9-inch widescreen touchscreen HMI designed for advanced industrial visualization. It features a 9-inch TFT display with 16 million colors and 800 × 480 pixel resolution, powered by Windows CE 6.0 and configurable with WinCC Comfort V11 or higher in TIA Portal.
The Siemens 6SL3210-1SE16-0UA0 is a SINAMICS S120 PM340 Power Module in Blocksize format, designed for modular drive systems. Operating on 3 AC 380–480 V input, it delivers 2.2 kW output power with 5.9 A rated output current in Frame Size FSB.
Scan to Wechat :
Scan to WhatsApp :
