Siemens 3RV1011-1GA20 Circuit Breaker – Obsolete SIRIUS Spare Part

Technical Dossier

Product Details And Specifications

Siemens 3RV1011-1GA20 Circuit Breaker – Obsolete SIRIUS Spare Part

DriveKNMS reviews sourcing options for this model through RFQ handling before quotation.

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Solving the Discontinued Hardware Crisis

The 3RV1011-1GA20 belongs to the SIRIUS 3RV1 motor starter protector family, a platform that was widely deployed across industrial motor control centers throughout the 2000s and 2010s. Facilities running legacy MCCs built around this series face a hard reality: the mechanical and electrical footprint of the 3RV1 is not directly interchangeable with current SIRIUS 3RV2 or 3RV2.x variants without panel modification.

For plant managers operating under capital expenditure constraints, the calculus is straightforward. A forced upgrade of a motor control center — including new breakers, contactors, overload relays, wiring, and re-commissioning — carries a per-panel cost that rarely falls below five figures. Multiply that across a facility with dozens of affected panels, and the business case for maintaining a strategic spare parts inventory becomes self-evident.

Facilities that have adopted a structured obsolete-parts procurement strategy consistently report the ability to extend the operational life of legacy automation assets by 5 to 10 years beyond the OEM's end-of-support date. The approach is not complicated: identify the highest-failure-risk components in each legacy panel, secure RFQ-reviewed sourcing status from specialist distributors, and establish a documented replacement protocol. The 3RV1011-1GA20 is precisely the type of component that belongs on that critical spares list.

Condition & Reliability Assurance

Every 3RV1011-1GA20 unit processed by DriveKNMS passes a structured 5-step quality assurance protocol before it is offered for sale. This protocol is designed specifically for the failure modes common to long-stored or field-removed electromechanical components:

• Step 1 – Visual and Mechanical Inspection: Housing integrity, terminal condition, and actuator mechanism are checked for physical damage, pin corrosion, and contact oxidation.
• Step 2 – Electrolytic Capacitor Assessment: Where applicable, internal capacitor condition is evaluated for signs of aging, bulging, or electrolyte leakage.
• Step 3 – Contact Resistance Measurement: Main and auxiliary contact resistance is measured to confirm values within specification.
• Step 4 – Trip Characteristic Verification: Thermal and magnetic trip functions are tested to confirm the unit responds correctly within its rated current range (4.5–6.3 A).
• Step 5 – Firmware and Label Verification: Part number, date code, and any revision markings are cross-referenced against known authentic Siemens production records.

Units that do not pass all five steps are quarantined and not offered for sale under any condition.

Key Features for System Maintenance

Q: Can you source additional quantity if we need more?
A: DriveKNMS actively monitors global surplus and broker networks. Contact us with your required quantity and timeline, and we will provide a sourcing assessment within 24 hours.