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Siemens 3RW5225-3AC15 — Soft Starters

Siemens 3RW5225-3AC15 SIRIUS Soft Starter, 200-600 V

MPN3RW5225-3AC15
Active

Siemens SIRIUS 3RW5225-3AC15 soft starter, 200-600 V rated voltage, trip class 10A/10E/20E, screw fixing, 306 x 185 x 203 mm (HxWxD).

StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RW5225-3AC15 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS

Power & Motor Rating

3RW5225-3AC15 — Power & Motor Rating
ParameterValue
Rated motor power at 400 V (40 °C)30 kW
Rated motor power at 230 V (40 °C)18.5 kW
Rated operational current at 40 °C109 A
Rated operational current at 50 °C96 A
Rated operational current at 60 °C87.5 A
Rated insulation voltage600 V
Minimum settable current (% of Ie)15 %; Relative to smallest settable Ie
Power loss during startup (50 °C)744 W

Control & Connection

3RW5225-3AC15 — Control & Connection
ParameterValue
Control supply voltage typeAC
Main circuit terminal typebox terminal
Control circuit wire range, solid2x (0.25 ... 1.5 mm²)
Control circuit wire range, finely stranded (with ferrule)2x (0.25 ... 1.5 mm²)
Analog outputYes; 4 ... 20 mA (default) / 0 ... 10 V (parameterizable with High Feature HMI)
Auxiliary contact rated current, AC-15 at 250 V3 A
Auxiliary contact rating (UL)R300-B300
Control supply voltage tolerance, AC 50 Hz (max.)10 %
Control supply voltage tolerance, AC 50 Hz (min.)-15 %
Control supply voltage tolerance, AC 60 Hz (max.)10 %
Control supply voltage tolerance, AC 60 Hz (min.)-15 %
Control supply frequency tolerance (max.)10 %
Control supply frequency tolerance (min.)-10 %
Operating frequency tolerance (max.)10 %
Operating frequency tolerance (min.)-10 %
Operating voltage tolerance, inside-delta (max.)10 %
Operating voltage tolerance, inside-delta (min.)-15 %

Protection & Features

3RW5225-3AC15 — Protection & Features
ParameterValue
Motor overload protectionYes; Electronic motor overload protection
Thermistor motor protectionNo
Adjustable current limitationYes
Inside-delta connectionYes
Intrinsic device protectionYes
Pollution degree3, acc. to IEC 60947-4-2

Mechanical

3RW5225-3AC15 — Mechanical
ParameterValue
Height306 mm
Width185 mm
Depth203 mm
Weight5.6 kg
Mounting position+/- 10° rotation possible and can be tilted forward or backward on vertical mounting surface
Fastening methodscrew fixing
Mounting clearance, top100 mm
Mounting clearance, bottom75 mm
Mounting clearance, side5 mm
Mounting clearance, front10 mm

Environmental

3RW5225-3AC15 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C; Please observe derating at temperatures of 40 °C or above
Storage / transport temperature range-40 ... +80 °C
Max. installation altitude5 000 m; Derating as of 1000 m, see catalog
Ambient class during operation (IEC 60721)3K6 (no ice formation, only occasional condensation), 3C3 (no salt mist), 3S2 (sand must not get into the devices), 3M6
Ambient class during transport (IEC 60721)2K2, 2C1, 2S1, 2M2 (max. fall height 0.3 m)

Specifications

3RW5225-3AC15 — Specifications
ParameterValue
Trip ClassCLASS 10A (default) / 10E / 20E; acc. to IEC 60947-4-2
Number Of Controlled Phases3
Utilization category according to IEC 60947-4-2AC 53a
Product Feature Integrated Bypass Contact SystemYes
Start-Up Ramp Time Of Soft Starter0 ... 20 s

Electrical

3RW5225-3AC15 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

Fieldbus and Control Integration

The 3RW5225-3AC15: This soft starter supports Modbus RTU, Modbus TCP, PROFIBUS, PROFINET standard, and EtherNet/IP, making it straightforward to drop into most automation architectures without a separate gateway. PROFIdrive and PROFIenergy are available when paired with the PROFINET communication module. The analog output can be set to 4-20 mA or 0-10 V via the High Feature HMI option. Remote reset is possible by cycling the control supply voltage. The unit also supports auto-reset, pump ramp-down, and soft torque starting — useful for conveyors, pumps, and fans where mechanical shock needs limiting.

Mounting and Environmental Ratings

Fastened by screw fixing, the unit measures 306 mm high, 185 mm wide, and 203 mm deep. It can be mounted on a vertical surface with ±10° rotation and forward/backward tilt. Minimum clearance at the side is 5 mm, upwards 100 mm, forwards 10 mm, and downwards 75 mm. Shock resistance is 15 g / 11 ms. CE, UL, and CSA approvals are in place, covering installations in North American and European markets.

Frequently asked questions

Is 3RW5225-3AC15 compatible with Modbus TCP?

Yes, the 3RW5225-3AC15 supports Modbus TCP, along with Modbus RTU, PROFIBUS, PROFINET standard, and EtherNet/IP.

What is the trip class of 3RW5225-3AC15?

The trip class is configurable to CLASS 10A (default), 10E, or 20E, in accordance with IEC 60947-4-2.

Where can I buy 3RW5225-3AC15 available via RFQ confirmation?

This part is sourced to order; availability and pricing are confirmed at quote time.

MPN
3RW5225-3AC15