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Siemens 3RW5225-3AC04 — Soft Starters

Siemens 3RW5225-3AC04 SIRIUS Soft Starter, 200-480 V, 25.5 A

MPN3RW5225-3AC04
Active

Siemens SIRIUS 3RW5225-3AC04 soft starter, 200-480 V, minimum 25.5 A, trip class 10A, PROFIBUS, Modbus RTU/TCP, EtherNet/IP, PROFINET, UL/CSA/CE.

Siemens 3RW5225-3AC04 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RW5225-3AC04 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS
3RW5225-3AC04 — 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
3RW5225-3AC04 — Control & Connection
ParameterValue
Control supply voltage typeAC/DC
Rated voltage at 50 Hz24 V
Rated voltage at 60 Hz24 V
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.)20 %
Control supply voltage tolerance, AC 50 Hz (min.)-20 %
Control supply voltage tolerance, AC 60 Hz (max.)20 %
Control supply voltage tolerance, AC 60 Hz (min.)-20 %
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 %
3RW5225-3AC04 — 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
3RW5225-3AC04 — 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
3RW5225-3AC04 — 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)
3RW5225-3AC04 — 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
3RW5225-3AC04 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

SIRIUS soft starter — motor control with integrated communication

The 3RW5225-3AC04: It ships with trip class 10A (default) per IEC 60947-4-2, with selectable 10E and 20E for longer acceleration profiles. Fieldbus support covers PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET — the unit fits into multi-vendor architectures without a separate gateway. PROFINET also carries PROFIenergy for coordinated energy management during idle phases. Approvals include UL, CSA, and CE marking — the soft starter is accepted in North American and European installations without additional certification hurdles.

Thermal and environmental limits for panel placement

Dimensions are 306 mm high, 185 mm wide, and 203 mm deep — screw fixing is specified. Mounting position allows +/-10° rotation on a vertical surface, with 100 mm clearance above and 75 mm below for airflow. Shock resistance is 15 g / 11 ms, with potential contact lifting at 12 g / 11 ms — adequate for most fixed industrial installations but not for high-vibration mobile equipment.

MPN
3RW5225-3AC04