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Siemens 3RW4046-1BB14 — Soft Starters

Siemens 3RW4046-1BB14 SIRIUS Soft Starter, 80A, Size S3

MPN3RW4046-1BB14
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Siemens SIRIUS 3RW4046-1BB14 soft starter, Size S3, 80 A at 40 °C, screw-type terminals, 110 … 230 V DC control supply, thyristor-based.

$1,269.00Ref. price · indicative, final on quote
Siemens 3RW4046-1BB14 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RW4046-1BB14 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS
3RW4046-1BB14 — Power & Motor Rating
ParameterValue
Rated operational current at 40 °C80A
Rated operational current at 50 °C73A
Rated operational current at 60 °C66A
Rated insulation voltage600V
Minimum settable current (% of Ie)20%
3RW4046-1BB14 — 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%
3RW4046-1BB14 — 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
3RW4046-1BB14 — 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
3RW4046-1BB14 — 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

It delivers adjustable current limitation and built-in motor overload protection, with an external reset input for remote fault recovery. The control supply accepts 110 … 230 V DC, and the operating frequency is 50 … 60 Hz. Rated current derates with ambient: 73 A at 50 °C, 66 A at 60 °C. The 20% minimum load setting prevents nuisance tripping on lightly loaded motors.

Fastens via screw and snap-on mounting. Dimensions: 70 mm wide, 170 mm high, 190 mm deep. Clearance requirements: 60 mm above, 40 mm below, 30 mm at the sides. With an additional fan, the mounting surface can be vertical and rotated ±90° or tilted ±22.5° front/back; without a fan, rotation and tilt are limited to ±10°. Main circuit uses screw-type terminals. Solid wire: 2x (0.5 … 2.5 mm²). Stranded: 2x (10 … 70 mm²). Finely stranded: 2x (10 … 50 mm²). Auxiliary contacts accept 2x (20 … 14 AWG). Maximum wire length to motor: 300 m.

Frequently asked questions

What are the key ratings for this soft starter?

Rated 80 A at 40 °C, 73 A at 50 °C, 66 A at 60 °C. Control supply 110 … 230 V DC. Insulation voltage 600 V. Operating frequency 50 … 60 Hz. Minimum load 20%.

What wire sizes does the 3RW4046-1BB14 accept?

Main circuit screw terminals accept solid 2x (0.5 … 2.5 mm²), stranded 2x (10 … 70 mm²), and finely stranded 2x (10 … 50 mm²). Auxiliary contacts accept 2x (20 … 14 AWG).

What clearance is needed around the 3RW4046-1BB14?

60 mm above, 40 mm below, 30 mm at the sides. Mounting position depends on whether an additional fan is used — with fan, rotation up to ±90° and tilt ±22.5°; without fan, ±10°.

MPN
3RW4046-1BB14