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Siemens 3RW5236-6AC14 — Soft Starters

Siemens 3RW5236-6AC14 SIRIUS Soft Starter, 81A, 200-480V

MPN3RW5236-6AC14
Active

Siemens SIRIUS 3RW5236-6AC14 soft starter, 81 A minimum, 200-480 V rated voltage, Trip Class 10A, screw fixing, 306 x 185 x 203 mm.

$1,656.08Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RW5236-6AC14 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS
3RW5236-6AC14 — Power & Motor Rating
ParameterValue
Rated motor power at 400 V (40 °C)90 kW
Rated motor power at 230 V (40 °C)45 kW
Rated operational current at 40 °C296 A
Rated operational current at 50 °C265 A
Rated operational current at 60 °C244 A
Rated insulation voltage600 V
Minimum settable current (% of Ie)15 %; Relative to smallest settable Ie
Power loss during startup (50 °C)2 037 W
3RW5236-6AC14 — Control & Connection
ParameterValue
Control supply voltage typeAC
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.)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 %
3RW5236-6AC14 — 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
3RW5236-6AC14 — Mechanical
ParameterValue
Height306 mm
Width185 mm
Depth203 mm
Weight7.15 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
3RW5236-6AC14 — 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)
3RW5236-6AC14 — 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
3RW5236-6AC14 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

The 3RW5236-6AC14 mounts via screw fixing to a vertical surface, rotatable ±90° and tiltable ±22.5° front-to-back. Clearance requirements: 100 mm above, 75 mm below, 10 mm forward, 5 mm at the sides, 0 mm backward.

Ratings and trip class

Minimum settable current is 81 A, with a minimum load of 15% relative to the smallest settable Ie. Trip Class 10A default, also configurable to 10E or 20E per IEC 60947-4-2 — meaning it protects standard squirrel-cage motors during start without nuisance tripping on normal acceleration. Operating temperature -25 to +60 °C, with derating required above 40 °C.

Fieldbus and control

Built-in fieldbus support covers PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET standard. PROFIenergy is available when paired with the PROFINET communication module. Analog output configurable as 4-20 mA or 0-10 V via the High Feature HMI. Remote reset by cycling the control supply voltage. Auto-reset is supported. Soft Torque and Pump Ramp Down are standard — useful for reducing mechanical shock on pump starts.

Frequently asked questions

Where can I buy 3RW5236-6AC14 and get a price?

The Siemens 3RW5236-6AC14 soft starter is sourced to order against an RFQ. Submit a request for current pricing and availability — confirmed at quote time.

Does 3RW5236-6AC14 support PROFIBUS and MODBUS?

Yes, it supports PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET standard. PROFIenergy is available with the PROFINET communication module.

MPN
3RW5236-6AC14