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Siemens 3RW5526-3HF14 — Soft Starters

Siemens 3RW5526-3HF14 Soft Starter, 200-480 V, ATEX

MPN3RW5526-3HF14
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Siemens 3RW5526-3HF14 SIRIUS soft starter, 200-480 V rated voltage, ATEX and IECEx certified, configurable trip class, multi-protocol fieldbus support.

Siemens 3RW5526-3HF14 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RW5526-3HF14 — Identification
ParameterValue
Product designationFailsafe soft starters
Product brand nameSIRIUS
3RW5526-3HF14 — 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 voltage480 V
Minimum settable current (% of Ie)10 %; Relative to set Ie
Power loss during startup (50 °C)921 W
3RW5526-3HF14 — Control & Connection
ParameterValue
Control supply voltage typeAC
Main circuit terminal typebox terminal
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
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 %
3RW5526-3HF14 — Protection & Features
ParameterValue
Motor overload protectionYes; Full motor protection (thermistor motor protection and electronic motor overload protection) / When using the motor overload protection according to ATEX, an upstream contactor is required in inside-delta circuit.
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
3RW5526-3HF14 — Mechanical
ParameterValue
Height306 mm
Width185 mm
Depth203 mm
Weight7.15 kg
Mounting positionVertical (can be rotated +/- 90° and tilted forward or backward +/- 22.5°)
Fastening methodscrew fixing
Mounting clearance, top100 mm
Mounting clearance, bottom75 mm
Mounting clearance, side5 mm
Mounting clearance, front10 mm
3RW5526-3HF14 — 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 altitude2 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)
3RW5526-3HF14 — Specifications
ParameterValue
Trip ClassCLASS 10A / 10E (default) / 20E / 30E; 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 ... 360 s
Ramp-Down Time Of Soft Starter0 ... 360 s
3RW5526-3HF14 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable125 ... 800 %
Starting Voltage [%]20 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

What this soft starter delivers

The 3RW5526-3HF14: Trip class is configurable as CLASS 10A, 10E (default), 20E, or 30E per IEC 60947-4-2, letting you match the thermal protection to the load — pump, fan, or conveyor. Starting profiles include voltage ramp, torque control, pump ramp down, breakaway pulse, and DC braking — covers soft start, controlled stop, and jogging.

Fieldbus and control integration

Supports PROFIBUS, Modbus RTU, Modbus TCP, and EtherNet/IP — drops into existing control networks without a separate gateway module. Analog output configurable as 4-20 mA or 0-10 V for motor current or torque feedback to the PLC or drive controller. Event list, error logbook, and trace function built in — useful for commissioning and fault analysis without external software.

Approvals and compliance

CE marked, UL and CSA approved — accepted in North American and European installations without additional agency review. ATEX and IECEx certification (Yes) means this unit can start motors in Zone 1 or Zone 2 classified areas when properly installed with the matching motor and cabling.

Panel mounting and clearances

Dimensions are 306 mm height, 185 mm width, 203 mm depth — fits standard 600 mm deep enclosures with room for wiring ducts. Minimum clearance requirements: 100 mm above, 75 mm below, 5 mm sides, 10 mm front, 0 mm rear — plan the panel layout accordingly for airflow and heat dissipation.

Frequently asked questions

What trip classes does the 3RW5526-3HF14 support?

Configurable as CLASS 10A, 10E (default), 20E, or 30E per IEC 60947-4-2. CLASS 10E suits standard motor starting;

MPN
3RW5526-3HF14