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Siemens 3RW5225-1TC14 — Soft Starters

Siemens 3RW5225-1TC14 SIRIUS Soft Starter, 200-480 V

MPN3RW5225-1TC14
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Siemens SIRIUS 3RW5225-1TC14 soft starter, 200-480 V, 25.5 A minimum, CLASS 10A/10E/20E, PROFINET/Modbus TCP/EtherNet/IP, screw fixing, 306x185x203 mm.

Siemens 3RW5225-1TC14 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RW5225-1TC14 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS
3RW5225-1TC14 — 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
3RW5225-1TC14 — Control & Connection
ParameterValue
Control supply voltage typeAC
Main circuit terminal typebox terminal
Control circuit wire range, solid1x (0.5 ... 4.0 mm²), 2x (0.5 ... 2.5 mm²)
Control circuit wire range, finely stranded (with ferrule)1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)
Analog outputNo
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 %
3RW5225-1TC14 — Protection & Features
ParameterValue
Motor overload protectionYes; Full motor protection (thermistor motor protection and electronic motor overload protection)
Thermistor motor protectionYes; Type A PTC or Klixon / Thermoclick
Adjustable current limitationYes
Inside-delta connectionYes
Intrinsic device protectionYes
Pollution degree3, acc. to IEC 60947-4-2
3RW5225-1TC14 — 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
3RW5225-1TC14 — 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)
3RW5225-1TC14 — 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
3RW5225-1TC14 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

Panel fit and fieldbus integration

The 3RW5225-1TC14 is a SIRIUS soft starter with screw fixing and dimensions 306 mm high by 185 mm wide by 203 mm deep — it occupies a standard panel footprint for this current class, with 100 mm clearance needed above and 75 mm below for airflow. On the communications side it carries PROFINET standard, PROFIBUS, Modbus RTU, Modbus TCP, and EtherNet/IP — so it drops into a multi-protocol line without a gateway.

Trip class and motor protection profile

Minimum settable current is 25.5 A, and the minimum load threshold is 15 % of that value — so it handles lightly loaded motors without nuisance tripping.

Frequently asked questions

What fieldbus protocols does the 3RW5225-1TC14 support?

It supports PROFINET standard, PROFIBUS, Modbus RTU, Modbus TCP, and EtherNet/IP — five protocols on one unit, no separate communication module needed for most networks.

MPN
3RW5225-1TC14