BOM / RFQ

Siemens 3RW4055-6BB44-1KP0

MPN3RW4055-6BB44-1KP0

SIRIUS soft starter S6 134 A, 75 kW/400 V, 40 °C 200-460 V AC, 230 V AC Screw terminals for sprinkler systems

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

Specifications

3RW4055-6BB44-1KP0 — Identification
Parameter	Value
Product designation	Soft starter
Product brand name	SIRIUS

3RW4055-6BB44-1KP0 — Power & Motor Rating
Parameter	Value
Rated operational current at 40 °C	134A
Rated operational current at 50 °C	117A
Rated operational current at 60 °C	100A
Rated insulation voltage	600V
Minimum settable current (% of Ie)	20%

3RW4055-6BB44-1KP0 — Control & Connection
Parameter	Value
Control supply voltage type	AC
Rated voltage at 50 Hz	230V
Rated voltage at 60 Hz	230V
Main circuit terminal type	busbar 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%

3RW4055-6BB44-1KP0 — Protection & Features
Parameter	Value
Motor overload protection	No
Thermistor motor protection	No
Adjustable current limitation	Yes
Inside-delta connection	No
Intrinsic device protection	No
Pollution degree	3, acc. to IEC 60947-4-2

3RW4055-6BB44-1KP0 — Mechanical
Parameter	Value
Height	198mm
Width	120mm
Depth	250mm
Mounting position	With additional fan: With vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back Without additional fan: With vertical mounting surface +/-10° rotatable, with vertical mounting surface +/- 10° t
Mounting clearance, top	100mm
Mounting clearance, bottom	75mm
Mounting clearance, side	5mm