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Siemens 3RW5217-3TC15 — Soft Starters

Siemens 3RW5217-3TC15 Soft Starter, 15.5 A, 200-600 V

MPN3RW5217-3TC15
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Siemens 3RW5217-3TC15 soft starter, 15.5 A minimum current, 200-600 V rated, Class 10A/10E/20E trip class, PROFIBUS and Modbus RTU/TCP, screw fixing, 275 x 170 x 152 mm.

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

3RW5217-3TC15 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS

Power & Motor Rating

3RW5217-3TC15 — 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

3RW5217-3TC15 — Control & Connection
ParameterValue
Control supply voltage typeAC
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 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 %

Protection & Features

3RW5217-3TC15 — 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

Mechanical

3RW5217-3TC15 — 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

3RW5217-3TC15 — 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

3RW5217-3TC15 — 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

3RW5217-3TC15 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

Panel fit and clearance — what the dimensions mean for your cabinet

The 3RW5217-3TC15: At 275 mm tall, 170 mm wide, and 152 mm deep, this soft starter occupies a standard footprint that fits alongside motor starters in a 600 mm deep enclosure with room for the gland plate behind it. The clearance rules are specific: 100 mm above, 75 mm below, 10 mm in front, 5 mm on each side, and 0 mm behind — stack them tight against the back panel but leave the top and bottom path open for natural convection cooling. Mounting position is flexible — vertical surface with ±90° rotation and ±22.5° tilt forward or back, so you can orient it to match the busbar layout without derating the unit.

Trip class and motor starting duty — matching the load

You can also select Class 10E or 20E via the parameter set, which extends the allowable start time to 20 seconds for higher-inertia loads like centrifuges or large fans without nuisance tripping.

Fieldbus connectivity — which networks it speaks

This unit ships with PROFIBUS onboard and supports Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET (with the standard communication module), plus PROFIenergy for energy management during idle phases.

Terminal capacity and wiring — field termination without adapters

The solid wire terminals accept two conductors per position: one pair sized 1.0-2.5 mm² and another pair sized 2.5-10 mm², letting you daisy-chain the control wiring through the same clamp without separate terminal blocks.

Approvals and compliance — what the certs cover

Carries CE marking, UL approval, and CSA approval, so it qualifies for panels destined for North American and European markets without additional agency review.

Sourcing and lifecycle — current production, quoted to order

Lifecycle status is current production — no end-of-life notice on file. Sourced through authorized distribution; availability and pricing confirmed at RFQ against your BOM quantity.

Frequently asked questions

What trip classes are available on the 3RW5217-3TC15?

The soft starter defaults to Class 10A per IEC 60947-4-2, with selectable Class 10E and Class 20E for extended start times up to 20 seconds on high-inertia loads.

MPN
3RW5217-3TC15