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Siemens 3RW5234-6AC04 — Soft Starters

Siemens 3RW5234-6AC04 Soft Starter, 200-480 V, 53 A, SIRIUS

MPN3RW5234-6AC04
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Siemens SIRIUS 3RW5234-6AC04 soft starter, 200-480 V, 53 A, PROFIBUS/Modbus/EtherNet/IP, trip class 10A, screw fixing, 203 mm depth.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RW5234-6AC04 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS
3RW5234-6AC04 — Power & Motor Rating
ParameterValue
Rated motor power at 400 V (40 °C)55 kW
Rated motor power at 230 V (40 °C)30 kW
Rated operational current at 40 °C196 A
Rated operational current at 50 °C175 A
Rated operational current at 60 °C154 A
Rated insulation voltage600 V
Minimum settable current (% of Ie)15 %; Relative to smallest settable Ie
Power loss during startup (50 °C)1 291 W
3RW5234-6AC04 — 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, 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 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 %
3RW5234-6AC04 — 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
3RW5234-6AC04 — Mechanical
ParameterValue
Height306 mm
Width185 mm
Depth203 mm
Weight6.6 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
3RW5234-6AC04 — 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)
3RW5234-6AC04 — Specifications
ParameterValue
Trip ClassCLASS 10A (default) / 10E / 20E; acc. to IEC 60947-4-2; 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
3RW5234-6AC04 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

The 3RW5234-6AC04: Rated for a minimum load of 53 A, this soft starter is sized for motor applications where the full-load current falls at or above that threshold. Trip class 10A (default) per IEC 60947-4-2. Selectable 10E and 20E classes extend the trip time for higher-inertia loads.

Communication and Control Integration

Built-in PROFIBUS, Modbus RTU, Modbus TCP, and EtherNet/IP support means this unit drops directly into a multi-protocol automation cell without an external gateway. PROFINET standard is also available, with PROFIenergy capability when paired with the PROFINET communication module. The analog output is configurable as 4-20 mA or 0-10 V (via the High Feature HMI), giving the PLC a real-time current or torque signal for monitoring or closed-loop control.

Panel Layout and Mounting

Screw fixing with a depth of 203 mm, width of 185 mm, and height of 306 mm. Clearance requirements: 100 mm above, 10 mm in front, 75 mm below, 5 mm at the side, and 0 mm behind.

Pollution degree 3 per IEC 60947-4-2 means it withstands conductive pollution in industrial environments. Shock resistance rated at 15 g / 11 ms. CE, UL, and CSA approvals cover North American and European installations without additional agency review.

Frequently asked questions

Does the 3RW5234-6AC04 support PROFIBUS communication?

Yes, the 3RW5234-6AC04 includes built-in PROFIBUS, along with Modbus RTU, Modbus TCP, and EtherNet/IP. PROFINET standard is also supported.

MPN
3RW5234-6AC04