The 3RW3950-6DC28: This control section is specifically designed for the SIKOSTART 3RW34..-0DC2. soft starter range. If you've got a 3RW34 soft starter with a -0DC2. suffix on the power unit, this control section bolts on as the top half. No guesswork on compatibility — the order code tells you it's the DC 24V variant for that family. For a field swap, you're looking at removing the old control section, checking the ribbon cable or pin header alignment, and torquing the mounting screws to spec. Keep the DC supply clean — a 24 VDC power supply with adequate filtering keeps the microprocessor happy.
Siemens 3RW3950-6DC28 Control Section, DC 24V
MPN3RW3950-6DC28
Siemens SIKOSTART 3RW3950-6DC28 control section, DC 24V, for 3RW34..-0DC2. soft starters. Current lifecycle stage.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Product details
Frequently asked questions
Does the 3RW3950-6DC28 work with a 3RW34 soft starter?
Yes, this control section is designed for the SIKOSTART 3RW34..-0DC2. soft starter series. It's the DC 24V control top for that power unit family.
MPN
3RW3950-6DC28