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Siemens 3RW4425-3BC44 — Soft Starters

Siemens 3RW4425-3BC44

MPN3RW4425-3BC44

SIRIUS soft starter Values at 400 V, 40 °C standard: 57 A, 30 kW Inside-delta: 99 A, 55 kW 200-460 V AC, 230 V AC spring-type terminals!!! Phased-out product!!! Successor is SIRIUS 3RW5, Preferred successor type is >>3RW5525-3HA14<<

$3,224.53Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RW4425-3BC44 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS
3RW4425-3BC44 — Power & Motor Rating
ParameterValue
Rated operational current at 40 °C99A
Rated operational current at 50 °C88A
Rated operational current at 60 °C78A
Rated insulation voltage690V
Minimum settable current (% of Ie)8%
3RW4425-3BC44 — Control & Connection
ParameterValue
Control supply voltage typeAC
Rated voltage at 50 Hz230V
Rated voltage at 60 Hz230V
Main circuit terminal typebox terminal
Auxiliary contact rating (UL)B300 / R300
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%
3RW4425-3BC44 — Protection & Features
ParameterValue
Motor overload protectionYes
Thermistor motor protectionYes
Adjustable current limitationYes
Inside-delta connectionYes
Intrinsic device protectionYes
Pollution degree3, acc. to IEC 60947-4-2
3RW4425-3BC44 — Mechanical
ParameterValue
Height192mm
Width170mm
Depth270mm
Mounting positionwith vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back
Fastening methodscrew fixing
Mounting clearance, top100mm
Mounting clearance, bottom75mm
Mounting clearance, side5mm
3RW4425-3BC44 — Environmental
ParameterValue
Operating temperature range60°C
MPN
3RW4425-3BC44