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Siemens 3RW5247-2AC05 — Soft Starters

Siemens 3RW5247-2AC05 SIRIUS Soft Starter, 200 A, 200-600 V

MPN3RW5247-2AC05
Active

Siemens SIRIUS 3RW5247-2AC05 hybrid switching device, soft starter, 200 A minimum, 200-600 V rated, Trip Class 10A, with Modbus TCP, EtherNet/IP, PROFIBUS, PROFINET.

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

Identification

3RW5247-2AC05 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS

Power & Motor Rating

3RW5247-2AC05 — Power & Motor Rating
ParameterValue
Rated motor power at 400 V (40 °C)250 kW
Rated motor power at 230 V (40 °C)132 kW
Rated operational current at 40 °C814 A
Rated operational current at 50 °C721 A
Rated operational current at 60 °C658 A
Rated insulation voltage600 V
Minimum settable current (% of Ie)15 %; Relative to smallest settable Ie
Power loss during startup (50 °C)6 604 W

Control & Connection

3RW5247-2AC05 — Control & Connection
ParameterValue
Control supply voltage typeAC/DC
Rated voltage at 50 Hz24 V
Rated voltage at 60 Hz24 V
Main circuit terminal typebusbar connection
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 %

Protection & Features

3RW5247-2AC05 — 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

3RW5247-2AC05 — Mechanical
ParameterValue
Height393 mm
Width210 mm
Depth203 mm
Weight9.9 kg
Mounting positionwith vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back
Fastening methodscrew fixing
Mounting clearance, top100 mm
Mounting clearance, bottom75 mm
Mounting clearance, side5 mm
Mounting clearance, front10 mm

Environmental

3RW5247-2AC05 — 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

3RW5247-2AC05 — 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

3RW5247-2AC05 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

What the 200 A minimum rating means for your motor circuit

The Siemens 3RW5247-2AC05 SIRIUS soft starter has a minimum rated operating current of 200 A. Trip Class 10A is the default setting per IEC 60947-4-2.

Fieldbus and control integration

This soft starter supports Modbus RTU, Modbus TCP, EtherNet/IP, PROFIBUS, and PROFINET, so it drops into most plant-floor networks without a protocol gateway. PROFINET users also get PROFIenergy for energy management during idle phases. The analog output is configurable as 4–20 mA or 0–10 V for feeding motor current or load status to a local panel meter or PLC analog input. Remote reset is handled by cycling the control supply voltage off and back on, which is the standard method for clearing a fault from a remote HMI or DCS without a site visit. An auto-reset function is also available, useful for unattended pump or fan stations where a momentary overload is acceptable.

Mounting is by screw fixing on a vertical surface, rotatable ±90° and tiltable ±22.5° front-to-back, which gives flexibility in tight enclosures. The unit measures 393 mm high, 210 mm wide, and 203 mm deep — substantial enough to require a backplate or sub-panel, not a DIN rail. Clearance requirements are 100 mm above, 75 mm below, 10 mm forward, 5 mm at the sides, and 0 mm backward, so plan the enclosure layout accordingly. Shock resistance is 15 g / 11 ms, adequate for most machine-mounted installations.

Frequently asked questions

Does 3RW5247-2AC05 support Modbus TCP and EtherNet/IP?

Yes, it supports Modbus TCP and EtherNet/IP, along with Modbus RTU, PROFIBUS, and PROFINET.

What is the trip class for 3RW5247-2AC05?

The default trip class is CLASS 10A per IEC 60947-4-2, with selectable CLASS 10E and CLASS 20E for longer acceleration times.

What are the clearance requirements for mounting 3RW5247-2AC05?

Minimum clearances are 100 mm above, 75 mm below, 10 mm forward, 5 mm at the sides, and 0 mm backward.

Where can I buy or get a price for 3RW5247-2AC05?

This part is sourced to order against an RFQ. Availability and pricing are confirmed at quote time.

MPN
3RW5247-2AC05