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Siemens 3RW5143-1XC14 — Soft Starters

Siemens 3RW5143-1XC14 Soft Starter

MPN3RW5143-1XC14

SIRIUS soft starter 200-480 V 210 A, 110-250 V AC Screw terminals without bypass, Analog output

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RW5143-1XC14 — Identification
ParameterValue
Product brand nameSIRIUS
3RW5143-1XC14 — Power & Motor Rating
ParameterValue
Rated motor power at 400 V (40 °C)110 kW
Rated motor power at 230 V (40 °C)55 kW
Rated operational current at 40 °C364 A
Rated operational current at 50 °C322 A
Rated operational current at 60 °C294 A
Rated insulation voltage480 V
Minimum settable current (% of Ie)15 %; Relative to smallest settable Ie
Power loss during startup (50 °C)2 979 W
3RW5143-1XC14 — 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
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 %
3RW5143-1XC14 — Protection & Features
ParameterValue
Motor overload protectionYes
Adjustable current limitationYes
Inside-delta connectionYes
Intrinsic device protectionYes
Pollution degree3, acc. to IEC 60947-4-2
3RW5143-1XC14 — Mechanical
ParameterValue
Height417 mm
Width210 mm
Depth203 mm
Weight9.75 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
3RW5143-1XC14 — 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
3RW5143-1XC14 — Specifications
ParameterValue
Trip ClassCLASS 10A (default) / 10E / 20E; acc. to IEC 60947-4-2
Number Of Controlled Phases3
Product Feature Integrated Bypass Contact SystemNo
Start-Up Ramp Time Of Soft Starter0 ... 20 s
Ramp-Down Time Of Soft Starter0 ... 20 s
3RW5143-1XC14 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 ... 50 %
MPN
3RW5143-1XC14