Sirius Motor Protection & Starters — Available Products
3RW3027-1BB14
$478.00
Siemens 3RV1011-1EA10
$265.00
Siemens 3RV1011-1GA10
$97.00
Siemens 3RV1011-1HA10
$798.00
Siemens 3RV1021-1JA10
$598.00
Siemens 3RV1021-1KA10
$200.00
Siemens 3RV1021-4AA10
$130.00
Siemens 3RV1021-4BA10
$215.00
Siemens 3RV1031-4EA10
$215.00
Siemens 3RV1031-4FA10
$248.00
Siemens 3RV1041-4JA10
$467.00
Siemens 3RV2011-0EA10
$267.00
Siemens 3RV2011-0GA10,
$264.00
Siemens 3RV2011-0HA10
$235.00
Siemens 3RV2011-1AA10
$210.00
Siemens 3RV2011-1AA15
$380.00
SIEMENS 3RV2011-1CA10
$201.00
Siemens 3RV2011-1CA15
$277.00
Siemens 3RV2011-1DA15
$280.00
Siemens 3RV2011-1DA20
$300.00
SIEMENS 3RV2011-1EA10
$146.00
Siemens 3RV2011-1FA15
$614.00
Siemens 3RV2011-1FA20
$418.00
Siemens 3RV2011-1GA15
$500.00
Overview
Siemens SIRIUS motor protection and starting devices are catalogued here as one line covering circuit protection and soft starting for motor feeders. The family holds 58 catalogued part numbers organised in three series.
Series in this family
- 3RV Motor Protection Circuit Breakers — 34 catalogued parts across the 3RV0, 3RV1 and 3RV2 generations.
- 3RW Soft Starters — 24 catalogued parts across 3RW2, 3RW3, 3RW4 and 3RW5.
- 3RH/3RT Contactors (Sirius) — the switching devices that complete a SIRIUS feeder; no parts catalogued in this series at present, and the contactor catalogue lives in the separate SIRIUS Contactors family.
By classification the catalogued parts fall into Circuit Breakers (26), Soft Starters (24) and Motor Protection Circuit Breakers (8). SIRIUS order numbers follow strict generation logic, so read the full 3RV or 3RW number from the device before selecting a replacement, and send it with a quote request if it is not catalogued here.
Machine down? Get a fast quote on Sirius Motor Protection & Starters parts.
New, surplus, and refurbished Siemens options. Request a quote or speak directly with an automation specialist for emergency sourcing.
Common Faults
Common Faults
- Capacitor degradation after 7–10 years of service
- Communication errors after firmware drift
- Input/output channel failure from over-voltage events
- Cooling fan failure causing thermal shutdown
- Connector wear in high-vibration installations
Troubleshooting Basics
Troubleshooting
- Confirm supply voltage and grounding
- Inspect diagnostic LEDs and fault codes
- Verify firmware/configuration matches the application
- Swap with a known-good unit to isolate the fault
- Check field wiring and termination
Replacement Options
Replacement Options
- Direct OEM replacement (preferred)
- Refurbished OEM unit (cost-effective)
- Compatible cross from the same manufacturer's current catalog
- Equivalent from an alternative manufacturer (engineering review required)
Migration Recommendations
Migration Path
When migrating away from discontinued units, plan for: firmware compatibility, wiring changes, software/configuration migration, spare-parts stock, and field commissioning. Palm Parts Solution can supply both the current generation and stock of the legacy unit while you plan the migration.
Compatibility
Compatibility
Units in this family are compatible with the manufacturer's standard control architecture, communication protocols (where applicable), and accessory ecosystem. Always cross-reference the exact catalog number, firmware revision, and hardware series before installation.
Browse by Series
3RV Motor Protection Circuit Breakers series — specifications, replacements, and availability. New, surplus, and refurbished stock with warranty.
3RW Soft Starters series — specifications, replacements, and availability. New, surplus, and refurbished stock with warranty.
Product Types in this Family
Frequently Ordered Together
Frequently Ordered
Customers ordering from this family frequently pair the unit with matching cables, terminal blocks, mounting kits, and surge protection. Contact our team for a complete BOM review.
Compatible & related families
Why Buy From Palm Parts Solution
DHL, FedEx, UPS — door-to-door in 1-4 business days.
RFQs sent during business hours are answered the same business day.
New, surplus and refurbished Siemens options — request current availability.
24/7 emergency sourcing for production-critical failures.
Custom pricing on volume, repair, and hard-to-find SKUs.
Talk to engineers, not call-center agents.
We hunt down discontinued and obsolete parts globally.
Lifecycle-end Siemens parts — sourced, tested, warrantied.
Frequently asked questions
What is the Sirius Motor Protection & Starters family used for?
The Sirius Motor Protection & Starters family from Siemens covers industrial automation applications such as machine control, process control, motor control and discrete I/O. Browse the series below to find the exact part number for your installation.
Are obsolete Sirius Motor Protection & Starters parts still available?
Yes. We stock new surplus, refurbished and end-of-life Sirius Motor Protection & Starters units from Siemens. If a part number is no longer in production we will identify a compatible replacement or repair your existing module.
How do I identify the correct Sirius Motor Protection & Starters replacement?
Match the catalog number printed on the Sirius Motor Protection & Starters label, then confirm voltage, I/O count, communication protocol and firmware revision. Our team can validate compatibility against your original Siemens configuration before shipment.
Do Sirius Motor Protection & Starters parts come tested?
Every Sirius Motor Protection & Starters unit we ship is functionally tested against Siemens OEM specifications. Refurbished items include a 1-year warranty and a full inspection report on request.