{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1011-1KA20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1011-1KA20","canonicalUrl":"https://aoctrl.com/siemens/3RV1011-1KA20","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1011-1KA20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor-protective circuit breaker, 3RV1011-1KA20, 12 A continuous rated current, CLASS 10 trip class, 5.5 kW at 400 V, spring-loaded terminals, 45 mm wide.","salesMarkdown":"The Siemens SIRIUS 3RV1011-1KA20 is a motor-protective circuit breaker sized for 12 A continuous current, with a CLASS 10 trip curve — meaning it will disconnect before the motor windings overheat during a locked-rotor condition on most standard induction motors up to 5.5 kW at 400 V AC. For applications that require GF protection, you'll need an external residual-current device downstream. Rated short-circuit breaking capacity reaches 100 kA at 240 V AC, 50 kA at 400 V AC, then drops to 3 kA at 500 V and 2 kA at 690 V. At 400 V — the most common industrial distribution voltage — this breaker clears faults up to 50 kA without upstream fuses in most Type 2 coordination schemes. Mounting position is any orientation. Width is 45 mm — three 18 mm module spaces — which keeps panel layout tight. Spring-loaded terminals on both main and auxiliary circuits accept 2x (0.25... 2.5 mm²) solid or 2x (0.25... 1.5 mm²) finely stranded with ferrule. AWG equivalent is 2x (24... 14). No screw torque to check — just strip to 8–10 mm and push in. Shock rated to 25 g for 11 ms. Surge voltage withstand is 6 000 V. RoHS compliance date is 01.01.2013 (substance prohibition per EU directive).","metaTitle":"Siemens 3RV1011-1KA20 SIRIUS Motor Circuit Breaker, 12 A, CL","metaDescription":"Siemens SIRIUS 3RV1011-1KA20 motor-protective circuit breaker, 12 A continuous, CLASS 10 trip, 5.5 kW at 400 V. Spring-loaded terminals, DIN-rail mount. Current lifecycle stage. So","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"81 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"90 mm","Backwards":"0 mm","Trip Class":"CLASS 10","At The Side":"0 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Shock Resistance":"25g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"circuit breaker","at 400 V rated value":"5.5 kW","Design Of The Product":"for motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"spring-loaded terminals","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"50 kA","at AC at 500 V rated value":"3 kA","at AC at 690 V rated value":"2 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"9.25 W","Substance Prohibitance (Date)":"01.01.2013","Continuous Current Rated Value":"12 A","at AWG cables for main contacts":"2x (24 ... 14)","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"spring-loaded terminals","Product Extension Auxiliary Switch":"Yes","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 000 V","at AC in hot operating state per pole":"3.1 W","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Touch Protection Against Electrical Shock":"finger-safe","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","number of CO contacts for auxiliary contacts":"0","operational current at AC-3 at 400 V rated value":"12 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Design Of The Overcurrent Release And Short-Circuit Release":"thermomagnetic","Arrangement Of Electrical Connectors For Main Current Circuit":"front side","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Switching Cycles) Of The Main Contacts Typical":"100 000","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"9 ... 12 A"}},"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=537957&mlfb=3RV1011-1KA20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1011-1KA20/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1011-1KA20 at 400 V?","answer":"50 kA at 400 V AC. At 240 V it reaches 100 kA; at 690 V it drops to 2 kA."},{"question":"Does 3RV1011-1KA20 include phase failure protection?","answer":"Yes, phase failure detection is built in. Ground fault detection is not included."},{"question":"What terminals does 3RV1011-1KA20 use?","answer":"Spring-loaded terminals on both main and auxiliary circuits. Accept 0.25–2.5 mm² solid or 0.25–1.5 mm² stranded with ferrule."},{"question":"Where can I buy 3RV1011-1KA20 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock figures are published on this page."},{"question":"Will 3RV1011-1KA20 drop into a panel specified around 3RV1011-1HA10?","answer":"Both are 45 mm wide SIRIUS breakers on the same DIN-rail footprint, so mechanical fit is identical. The key difference is the 3RV1011-1KA20 carries a 12 A continuous rating with CLASS 10 trip, while the 3RV1011-1HA10 is a different current/trip variant — verify the load rating before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1011-1KA20","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/3RV1011-1KA20 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}}