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Siemens 3RW4453-2BC46 — Soft Starters

Siemens 3RW4453-2BC46

MPN3RW4453-2BC46

SIRIUS soft starter Values at 690 V, 40 °C standard: 551 A, 560 kW Inside-delta: only up to 600 V 400-690 V AC, 230 V AC spring-type terminals!!! Phased-out product!!! Successor is SIRIUS 3RW5, Preferred successor type is >>3RW5548-2HA16<<

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

Specifications

3RW4453-2BC46 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS
3RW4453-2BC46 — Power & Motor Rating
ParameterValue
Rated operational current at 40 °C954A
Rated operational current at 50 °C856A
Rated operational current at 60 °C759A
Rated insulation voltage690V
Minimum settable current (% of Ie)8%
3RW4453-2BC46 — Control & Connection
ParameterValue
Control supply voltage typeAC
Rated voltage at 50 Hz230V
Rated voltage at 60 Hz230V
Main circuit terminal typebusbar connection
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%
3RW4453-2BC46 — 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
3RW4453-2BC46 — Mechanical
ParameterValue
Height640mm
Width510mm
Depth290mm
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
3RW4453-2BC46 — Environmental
ParameterValue
Operating temperature range60°C
Ambient class during operation (IEC 60721)3K6 (no formation of ice, no 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)
MPN
3RW4453-2BC46