{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-4DA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-4DA10","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-4DA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4DA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1021-4DA10, motor protection circuit breaker, 25 A rated continuous current, Class 10 trip, 50 kA breaking capacity at 400 V AC, screw terminals, IP20 front.","salesMarkdown":"## Motor protection circuit breaker for the panel builder The 3RV1021-4DA10's breaking capacity drops as line voltage rises: 100 kA at 240 V AC, 50 kA at 400 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC. The 6 kV rated surge voltage withstand means the breaker handles switching transients on motor circuits without internal flashover. Screw-type terminals on both main and auxiliary circuits accept solid or stranded conductors: 2x (1…2.5 mm²) or 2x (2.5…6 mm²), with AWG equivalents 2x (14…10). No backward or side clearance is required, so you can butt it against adjacent devices on the rail. IP20 on the front means the busbars are touch-safe in an enclosed panel; the interior of the cabinet provides the rest of the protection. ## Thermal and environmental limits The 25g / 11 ms shock rating means it survives the vibration and impact typical of machine-mounted panels. Maximum operating frequency is 15 switching cycles per hour in AC-3 duty, which covers normal motor start-stop sequences but not rapid cycling.","metaTitle":"Siemens 3RV1021-4DA10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV1021-4DA10 SIRIUS motor protection circuit breaker, 25 A continuous rating, Class 10 trip, 50 kA at 400 V. Phase failure detection. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"96 mm","Solid":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Width":"45 mm","Height":"97 mm","Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","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":"11 kW","Design Of The Product":"for motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"screw-type 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":"10 kA","at AC at 690 V rated value":"4 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"10.5 W","Substance Prohibitance (Date)":"01.05.2012 00:00:00","Continuous Current Rated Value":"25 A","at AWG cables for main contacts":"2x (14 ... 10)","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type 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":"3.5 W","Finely Stranded With Core End Processing":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Number Of Poles For Main Current Circuit":"3","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","operational current at AC-3 at 400 V rated value":"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":"20 ... 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=140216&mlfb=3RV1021-4DA10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4DA10/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the 3RV1021-4DA10?","answer":"Rated continuous current 25 A, motor power 11 kW at 400 V AC, Class 10 trip, breaking capacity 50 kA at 400 V AC. Phase failure detection is included."},{"question":"Will 3RV1021-4DA10 drop into a panel specified around 3RV6021-4DA10?","answer":"The 3RV1021-4DA10 and 3RV6021-4DA10 share the same 45 mm width, DIN rail mounting, and screw terminal layout, so mechanical fit is identical. The functional difference is that the 3RV6021-4DA10 is a higher-breaking-capacity variant — check your panel's available fault current before substituting downward."},{"question":"What compliance documentation does Siemens provide for 3RV1021-4DA10?","answer":"RoHS compliance is confirmed with a substance prohibition date of 01.05.2012. The breaker is designed to IEC/EN 60947-2 and 60947-4-1 standards. UL and CSA listings are typical for the SIRIUS family; confirm specific file numbers with the factory certificate at order time."},{"question":"Where can I buy the 3RV1021-4DA10?","answer":"The 3RV1021-4DA10 is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-4DA10","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/3RV1021-4DA10 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}}