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Datasheet generated 2026-10-07
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Siemens SIRIUS 3RW soft starter 3RW4028-1BB04

Siemens · Drives & Controllers · Soft Starters · Germany · siemens.com
Part Number
3RW4028-1BB04  ·  HS 8537.10
Siemens SIRIUS 3RW soft starter 3RW4028-1BB04

Siemens 3RW4028-1BB04 — SIRIUS 3RW soft starter. Motor soft starter with controlled voltage ramp for reduced-inrush motor start. SOFT STARTER 38A 200-480V 24V.

Technical Specifications

Manufacturer part number (MPN)3RW4028-1BB04
EAN / GTIN4011209691766
Sales unitpcs
FunctionSingle direction
With displayNo
Degree of protection (IP)IP20
Rated operation current Ie at 40 °C Tu38 A
Rated power three-phase motor, inline, at 230 V11 kW
Rated power three-phase motor, inline, at 400 V18.5 kW
Rated surrounding temperature without derating40 °C
Voltage type for actuatingAC/DC
Internal bypassYes
Torque controlNo
Country of originGermany

Properties

MOQ1

Cross-References

Attached Documents