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.
Item No :
3RW5217-3AC04Order(MOQ) :
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EXWProduct Origin :
CzechShipping Port :
WuhanLead Time :
3~5 daysWeight :
5kg| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Model | 3RW5217-3AC04 |
| Product Family | SIRIUS 3RW52 General Performance |
| Product Type | Soft Starter |
| Rated Operational Current (Ie) | 38 A at 40°C |
| Rated Operational Voltage (Ue) | 200–480 V AC |
| Rated Power (Standard Circuit, 400V) | 18.5 kW |
| Rated Power (Inside-Delta, 400V) | 30 kW |
| Rated Power (Standard Circuit, 230V) | 11 kW |
| Control Supply Voltage | 24 V AC/DC (±20%) |
| Number of Controlled Phases | 3 |
| Integrated Bypass | Yes (hybrid switching technology) |
| Motor Overload Protection | Integrated electronic |
| Signal Output | Analog output (for process monitoring) |
| Terminal Type | Spring-type terminals |
| Power Loss (40°C, After Startup) | 23 W |
| Dimensions (H x W x D) | 306 x 185 x 203 mm |
| Weight | Approx. 2.92 kg |
| Protection Class | IP00 (IP20 with cover) |
| Country of Origin | Czech Republic |
| Lifecycle Status | Delivery Release (PM300) |
| Model | Description | Typical Application |
|---|---|---|
| 3RW5217-3AC04 (this model) | 3RW52, 38A, 24V AC/DC, spring terminals, analog output | Standard motor starting with analog monitoring |
| 3RW5217-3TC04 | Same rating, thermistor input instead of analog output | Applications requiring thermistor motor protection |
| 3RW5217-3AC14 | Same rating, 110–250V AC control voltage, analog output | Applications with AC control voltage |
| 3RW5217-1AC04 | Same rating, screw terminals instead of spring | Applications preferring screw connections |
| 3RW5216-3AC04 | 3RW52, 32A, 15kW @ 400V | Smaller motor applications |
| 3RW5224-3AC04 | 3RW52, 47A, 22kW @ 400V | Larger motor 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 3RW5217-3AC04?
It is a General Performance 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. Its integrated bypass ensures energy savings and low heat dissipation in the control cabinet.
Q2: What is the difference between standard and inside-delta connection?
In standard (inline) connection, the soft starter carries the full motor current, providing 18.5 kW at 400 V for this model. In inside-delta connection, the soft starter carries only 58% of the motor phase current, enabling it to control a larger motor — up to 30 kW at 400 V for the same 38 A device.
Q3: What is the difference between the "-3AC04" and "-3TC04" variants?
The 3AC04 variant includes an analog output for process monitoring (e.g., motor current, voltage). The 3TC04 variant includes a thermistor motor protection input instead. Both share the same power ratings and spring-type terminals.
Q4: What communication options are available?
The 3RW52 series supports optional plug-in communication modules for PROFINET, PROFIBUS, Modbus TCP, Modbus RTU, and EtherNet/IP. Without a communication module, the device can be parameterized via potentiometers. Various HMI modules are also available for installation in the device or control cabinet door.
Q5: 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.
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).
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