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Siemens 3RW5224-3AC15 — Soft Starters

Siemens 3RW5224-3AC15 SIRIUS Soft Starter, 20 A min

MPN3RW5224-3AC15
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Siemens SIRIUS 3RW5224-3AC15 soft starter, 20 A minimum, 200-600 V, Class 10A/10E/20E, PROFIBUS/Modbus RTU/Modbus TCP/EtherNet/IP/PROFINET, screw fixing, 306 x 185 x 203 mm.

Siemens 3RW5224-3AC15 datasheet (PDF)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RW5224-3AC15 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS

Power & Motor Rating

3RW5224-3AC15 — Power & Motor Rating
ParameterValue
Rated motor power at 400 V (40 °C)22 kW
Rated motor power at 230 V (40 °C)11 kW
Rated operational current at 40 °C81.4 A
Rated operational current at 50 °C72 A
Rated operational current at 60 °C62.7 A
Rated insulation voltage600 V
Minimum settable current (% of Ie)15 %; Relative to smallest settable Ie
Power loss during startup (50 °C)522 W

Control & Connection

3RW5224-3AC15 — 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

3RW5224-3AC15 — 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

3RW5224-3AC15 — Mechanical
ParameterValue
Height306 mm
Width185 mm
Depth203 mm
Weight5.2 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

3RW5224-3AC15 — 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

3RW5224-3AC15 — 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

3RW5224-3AC15 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

What the trip class and voltage range mean for your motor start

The 3RW5224-3AC15 is a SIRIUS soft starter rated for a minimum operating current of 20 A at 200-600 V, with trip classes 10A (default), 10E, and 20E per IEC 60947-4-2. This simplifies stocking for multi-voltage sites.

Fieldbus integration and analog feedback

This soft starter supports PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET with PROFIenergy — all onboard. No separate communication module is needed for these protocols, which simplifies the BOM and reduces panel wiring. The analog output is configurable as 4-20 mA or 0-10 V (via the High Feature HMI), giving the PLC a direct current or voltage signal proportional to motor current. This is useful for remote monitoring without a fieldbus gateway.

Mounting clearances and ambient derating

The unit is screw-fixed and requires 100 mm clearance upwards, 75 mm downwards, 10 mm forwards, 5 mm at the sides, and 0 mm backwards. These are the minimum free-air gaps for convection cooling — tighter spacing will require derating or forced ventilation. The 306 x 185 x 203 mm envelope fits standard 600 mm deep enclosures with room for gland plates.

Approvals include CE, UL, and CSA — the part is accepted in North American and European installations without additional certification work.

Frequently asked questions

What fieldbus protocols does the 3RW5224-3AC15 support?

It supports PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET with PROFIenergy — all built-in without an add-on module.

What trip classes are available on this soft starter?

The default trip class is 10A, with selectable 10E and 20E per IEC 60947-4-2. Class 20E is for high-inertia loads that need a longer start ramp.

How do I get pricing and availability for the 3RW5224-3AC15?

Submit an RFQ through the storefront.

MPN
3RW5224-3AC15