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Siemens 3RW5921-0PB05 — Soft Starters

Siemens 3RW5921-0PB05 PCB for 3RW52 Soft Starter, Size 1, 18

MPN3RW5921-0PB05
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Siemens Spare parts for 3RW52 soft starters, PCB 600 V for 3RW52, Size 1, 18 A, 3RW5921-0PB05.

Siemens 3RW5921-0PB05 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RW5921-0PB05 — Specifications
ParameterValue
Group codeR711
Product group4983
Product classA: Standard product which is a stock item could be returned within the returns guidelines/period.
SeriesSpare parts for 3RW52 soft starters
Export control regulationsAL : N / ECCN : EAR99
Compliance with the substance restrictions according to RoHS directiveSince: 15-02-18

Product details

The Siemens 3RW5921-0PB05 is a replacement PCB for the 3RW52 soft starter family, sized for the Size 1 frame at 18 A continuous. It carries the 600 V rating of the main power board, so it directly replaces the factory-installed board in that specific frame and current class.

The board mounts inside the 3RW52 enclosure — no DIN-rail or panel cutout needed. Swap-in replacement for field service: disconnect the control wiring, remove the old PCB, and torque the new one to the standoffs. The 308 x 224 x 93 mm packaging dimensions give the shipping box size, not the board itself.

Frequently asked questions

What compliance documentation does the 3RW5921-0PB05 carry?

RoHS compliant since 15 February 2018. REACH Article 33 declares lead (CAS 7439-92-1) above 0.1% w/w. Export control is AL: N / ECCN: EAR99.

Where can I buy the 3RW5921-0PB05?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the group code and product group for 3RW5921-0PB05?

Group code R711, product group 4983.

MPN
3RW5921-0PB05