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Siemens 3RW5217-3AC04 — Soft Starters

Siemens 3RW5217-3AC04 Soft Starter, SIRIUS, 200-480 V

MPN3RW5217-3AC04
Active

Siemens SIRIUS 3RW5217-3AC04 soft starter, 200-480 V rated voltage, 15.5 A minimum setting, trip class 10A/10E/20E per IEC 60947-4-2, PROFIBUS/Modbus/EtherNet/IP, UL/CSA, 275 x 170 x 152 mm.

Siemens 3RW5217-3AC04 datasheet (PDF)
StockContact for availability
Lead time3-5 Days wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RW5217-3AC04 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS

Power & Motor Rating

3RW5217-3AC04 — Power & Motor Rating
ParameterValue
Rated motor power at 400 V (40 °C)18.5 kW
Rated motor power at 230 V (40 °C)11 kW
Rated operational current at 40 °C65.8 A
Rated operational current at 50 °C58 A
Rated operational current at 60 °C52.8 A
Rated insulation voltage600 V
Minimum settable current (% of Ie)15 %; Relative to smallest settable Ie
Power loss during startup (50 °C)526 W

Control & Connection

3RW5217-3AC04 — Control & Connection
ParameterValue
Control supply voltage typeAC/DC
Rated voltage at 50 Hz24 V
Rated voltage at 60 Hz24 V
Main circuit terminal typescrew-type terminals
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

3RW5217-3AC04 — 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

Mechanical

3RW5217-3AC04 — Mechanical
ParameterValue
Height275 mm
Width170 mm
Depth152 mm
Weight2.3 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

3RW5217-3AC04 — 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)

Specifications

3RW5217-3AC04 — 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

Electrical

3RW5217-3AC04 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

Trip class and motor protection coordination

The 3RW5217-3AC04 is configured with trip class 10A as default, with selectable 10E or 20E per IEC 60947-4-2. The minimum settable current is 15.5 A, which corresponds to 15 % of the smallest adjustable Ie. For a motor drawing 20 A full-load, this allows the soft starter to be tuned down to protect lightly loaded or intermittent-duty machines without nuisance tripping.

Fieldbus and communication — which protocols are supported

This soft starter natively supports PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET standard, plus PROFIenergy in conjunction with the PROFINET communication module. For a controls integrator, this means the 3RW5217-3AC04 can be dropped into a Siemens S7-1500 environment over PROFINET, or into a Rockwell plant-floor network over EtherNet/IP, without a protocol gateway. The analog output is configurable as 4-20 mA (default) or 0-10 V when parameterized via the High Feature HMI. This provides a direct motor current signal to a PLC analog input for trending or remote indication — useful for condition monitoring without adding a separate current transducer.

Mounting dimensions and panel integration

The unit measures 275 mm height, 170 mm width, and 152 mm depth. It is screw-fixed to the mounting surface. Clearance requirements: 100 mm upwards, 10 mm forwards, 0 mm backwards, 75 mm downwards, and 5 mm at the sides. The backwards clearance of zero means the unit can be mounted flush against a back panel — useful in shallow enclosures. Solid wire termination accepts 2× (1.0-2.5 mm²) and 2× (2.5-10 mm²) conductors. For a panel wireman, this covers both control wiring (1.0-2.5 mm²) and power wiring (2.5-10 mm²) with a single terminal design — no need for separate ferrule sizes or ring lugs.

Lifecycle and compliance documentation

For a site electrical engineer sizing the panel cooling, this means the soft starter can be installed in an unconditioned enclosure up to 40 °C without derating; above that, the current capacity must be reduced per the derating curve in the product documentation.

Frequently asked questions

What is the depth of 3RW5217-3AC04?

The depth is 152 mm. Combined with the 275 mm height and 170 mm width, this fits standard 600 mm deep enclosures with clearance allowances of 100 mm upwards and 75 mm downwards.

What compliance documentation does Siemens provide for 3RW5217-3AC04?

The unit carries CE marking for European markets, UL approval for US installations, and CSA approval for Canadian installations. These are listed on the product specification and are verifiable against Siemens documentation.

MPN
3RW5217-3AC04