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Siemens 3RW4047-1BB15 — Soft Starters

Siemens 3RW4047-1BB15 Soft Starter SIRIUS, 106 A, 50-60 Hz

MPN3RW4047-1BB15
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Siemens SIRIUS 3RW4047-1BB15 soft starter, size S3, 106 A at 40 °C, 50-60 Hz, 600 V insulation voltage, screw terminals, adjustable current limitation.

Siemens 3RW4047-1BB15 datasheet (PDF)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RW4047-1BB15 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS

Power & Motor Rating

3RW4047-1BB15 — Power & Motor Rating
ParameterValue
Rated operational current at 40 °C106A
Rated operational current at 50 °C98A
Rated operational current at 60 °C90A
Rated insulation voltage600V
Minimum settable current (% of Ie)20%

Control & Connection

3RW4047-1BB15 — Control & Connection
ParameterValue
Control supply voltage typeAC/DC
Main circuit terminal typescrew-type terminals
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%

Protection & Features

3RW4047-1BB15 — Protection & Features
ParameterValue
Motor overload protectionYes
Thermistor motor protectionNo
Adjustable current limitationYes
Inside-delta connectionNo
Intrinsic device protectionYes
Pollution degree3, acc. to IEC 60947-4-2

Mechanical

3RW4047-1BB15 — Mechanical
ParameterValue
Height170mm
Width70mm
Depth190mm
Mounting positionWith 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
Fastening methodscrew and snap-on mounting
Mounting clearance, top60mm
Mounting clearance, bottom40mm
Mounting clearance, side30mm

Environmental

3RW4047-1BB15 — Environmental
ParameterValue
Operating temperature range-25 ... +60°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)

Product details

SIRIUS S3 soft starter — 106 A at 40 °C, adjustable current limit

The 3RW4047-1BB15: Control supply accepts 110-230 V DC, and the unit operates on 50-60 Hz mains. The adjustable current limitation (20% minimum load) and integrated motor overload protection let you set the ramp and trip threshold without an external relay. Mounting is screw or snap-on (DIN rail), with the fastening method allowing vertical surface rotation up to ±90° when an additional fan is fitted. Without the fan, rotation is limited to ±10° — plan the panel layout accordingly.

Terminal sizing and wire preparation

The back and front clamping points both handle 2x (10-1/0 AWG). Solid wire for aux contacts is 2x (0.5-2.5 mm²). Maximum wire length to the motor is 300 m — sufficient for most in-plant runs.

Active production — sourcing against your BOM

This unit is sourced through authorized industrial distribution channels.

Frequently asked questions

What are the key ratings for the 3RW4047-1BB15?

Control supply is 110-230 V DC, operating frequency 50-60 Hz, insulation voltage 600 V. Adjustable current limitation and integrated motor overload protection are standard.

How do I get current pricing and availability for the 3RW4047-1BB15?

Submit your BOM quantity for a current price and lead-time confirmation — no stock-holding claim, quoted per order.

MPN
3RW4047-1BB15