{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB1065-2GG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB1065-2GG0","canonicalUrl":"https://aoctrl.com/siemens/3RB1065-2GG0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB1065-2GG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RB1065-2GG0 electronic overload relay, 55-250A, Class 20, for S10/S12 contactor mounting or standalone installation, manual reset.","salesMarkdown":"## Motor protection relay for S10/S12 contactor systems The Siemens 3RB1065-2GG0 is an electronic overload relay rated for motor currents from 55 A up to 250 A, with a Class 20 trip curve. It is designed for direct mounting on 3RT106 contactors (S10/S12 frame sizes) via the included connecting bars, or can be installed as a standalone unit with manual reset. The current lifecycle stage is active, meaning this order code remains in the current product portfolio. The 55...250 A adjustment range covers large induction motors typically found on pumps, compressors, and conveyors in the 30–132 kW range at 400 V. Class 20 means the relay allows up to 20 seconds of locked-rotor current before tripping — matching NEMA and IEC motor starting profiles for standard-duty applications where the load accelerates in under 10 seconds. For high-inertia loads (fans, flywheels) that need longer starting times, a Class 30 or 40 relay would be the correct choice; this part is sized for the majority of industrial motor starts. The relay mounts directly onto the 3RT106 contactor using the factory-supplied connecting bars, eliminating separate busbar wiring between the contactor and overload. For retrofit or standalone use, the same unit installs independently with its own terminal connections.","metaTitle":"Siemens 3RB1065-2GG0 Electronic Overload Relay, 55-250A, Cla","metaDescription":"Siemens 3RB1065-2GG0 electronic overload relay, 55-250A, Class 20, for S10/S12 contactors. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=309199&mlfb=3RB1065-2GG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB1065-2GG0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3RB1065-2GG0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the current rating range and trip class of the 3RB1065-2GG0?","answer":"The relay covers 55 to 250 A with a Class 20 trip curve, suitable for standard motor starting profiles on pumps, compressors, and conveyors."},{"question":"Does the 3RB1065-2GG0 mount directly onto a contactor?","answer":"Yes, it is designed for direct mounting on 3RT106 contactors (S10/S12 frame sizes) using the included connecting bars, or can be installed as a standalone unit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB1065-2GG0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RB1065-2GG0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}