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Siemens 3RW5226-1AC14 — Soft Starters

Siemens 3RW5226-1AC14 SIRIUS Soft Starter, 200-480 V

MPN3RW5226-1AC14
Active

Siemens SIRIUS 3RW5226-1AC14 hybrid switching device, soft starter, 200-480 V, 32 A minimum, CLASS 10A/10E/20E, PROFIBUS, Modbus RTU/TCP, EtherNet/IP, PROFINET, UL/CSA/CE.

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

3RW5226-1AC14 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS

Power & Motor Rating

3RW5226-1AC14 — Power & Motor Rating
ParameterValue
Rated motor power at 400 V (40 °C)37 kW
Rated motor power at 230 V (40 °C)22 kW
Rated operational current at 40 °C133 A
Rated operational current at 50 °C118 A
Rated operational current at 60 °C107 A
Rated insulation voltage600 V
Minimum settable current (% of Ie)15 %; Relative to smallest settable Ie
Power loss during startup (50 °C)933 W

Control & Connection

3RW5226-1AC14 — Control & Connection
ParameterValue
Control supply voltage typeAC
Main circuit terminal typebox terminal
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.)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

3RW5226-1AC14 — 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

3RW5226-1AC14 — Mechanical
ParameterValue
Height306 mm
Width185 mm
Depth203 mm
Weight5.6 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

Environmental

3RW5226-1AC14 — 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

3RW5226-1AC14 — 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

3RW5226-1AC14 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

200-480 V soft starter with multi-protocol fieldbus

The 3RW5226-1AC14: It's built for motor starting duty where controlled acceleration and deceleration are needed, with trip classes CLASS 10A (default), 10E, or 20E per IEC 60947-4-2. The unit ships with onboard PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET — so it drops into most common fieldbus architectures without an extra gateway. PROFIenergy support is available when paired with the PROFINET communication module.

Trip class and thermal derating at 40 °C+

Trip class is selectable between CLASS 10A, 10E, and 20E — this governs how long the starter can carry locked-rotor current before tripping.

Mounting and clearance for screw-fixed panels

Fastening is by screw fixing, not DIN-rail snap-on — plan for four mounting points in the panel layout. The unit measures 185 mm wide, 306 mm high, and 203 mm deep, and requires minimum clearances: 100 mm above, 10 mm in front, 75 mm below, 5 mm at the sides, and 0 mm behind. Mounting position allows vertical surface with ±90° rotation and ±22.5° tilt forward/back — useful for tight cabinets where the starter can't sit perfectly upright.

Approvals include UL, CSA, and CE marking — covers North American and European installations. Compliance documentation (RoHS, REACH) is available with the shipment.

Frequently asked questions

What is the closest pin-compatible alternative to 3RW5226-1AC14 in this component family?

No official pin-compatible alternative or cross-reference is listed. The 3RW5226-1AC14 is a current-production model; if a replacement is needed, the Siemens SIRIUS soft starter range offers different frame sizes and voltage ratings, but none are direct drop-in substitutes without panel rework.

What compliance documentation does this brand provide for 3RW5226-1AC14?

The unit carries UL approval, CSA approval, and CE marking. RoHS and REACH compliance documentation is included with the shipment.

MPN
3RW5226-1AC14