{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1011-0KA20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1011-0KA20","canonicalUrl":"https://aoctrl.com/siemens/3RV1011-0KA20","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1011-0KA20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1011-0KA20, 1.25 A continuous current, CLASS 10 trip class, 100 kA breaking capacity at 400 V AC, spring-loaded terminals, 45 mm width.","salesMarkdown":"## Motor protection circuit breaker, 1.25 A, CLASS 10 Breaking capacity reaches 100 kA at 400 V AC and holds that figure at 240 V and 500 V, then drops sharply to 2 kA at 690 V AC — so at 400 V it can interrupt a bolted fault up to 100 kA without upstream fuses, but at 690 V the fault current must be limited to 2 kA or a higher-rated device is needed upstream. ## DIN-rail mounting and terminal details Main and auxiliary/control circuits both use spring-loaded terminals, accepting solid conductors 2x (0.25... 2.5 mm²) or finely stranded with ferrule 2x (0.25... 1.5 mm²). AWG equivalents are 2x (24... 14) for the main contacts. Finger-safe touch protection is provided on the front (IP20). The 45 mm width and 81 mm depth fit a standard SIRIUS 3RV1 footprint; backwards clearance is 0 mm, side clearance also 0 mm, so modules can be ganged without spacing. Substance prohibitance date of 01.01.2013 aligns with RoHS compliance; operating temperature range is -20 to +60 °C, storage and transport range -50 to +80 °C. Surge voltage resistance rated at 6 000 V, shock resistance 25g / 11 ms — suitable for industrial environments with moderate vibration and transient overvoltages.","metaTitle":"Siemens 3RV1011-0KA20 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV1011-0KA20 SIRIUS motor protection circuit breaker, 1.25 A continuous rating, CLASS 10 trip, 100 kA breaking capacity at 400 V AC. Spring-loaded terminals, phase failure","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":"0.37 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":"100 kA","at AC at 500 V rated value":"100 kA","at AC at 690 V rated value":"2 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"5.5 W","Substance Prohibitance (Date)":"01.01.2013","Continuous Current Rated Value":"1.25 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":"1.8 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":"1.25 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":"0.9 ... 1.25 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=190105&mlfb=3RV1011-0KA20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1011-0KA20/alternatives.json"},"ai":{"faq":[{"question":"Will 3RV1011-0KA20 drop into a panel specified for 3RV1011-0HA10 without rewiring?","answer":"Both are 45 mm wide SIRIUS 3RV1 breakers with the same DIN-rail footprint and spring-loaded terminals, so mechanical fit is identical. The difference is the thermal setting — 3RV1011-0KA20 is 1.25 A while 3RV1011-0HA10 is a different rating — so verify the motor FLA matches before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1011-0KA20","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/3RV1011-0KA20 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}}