{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-0DA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-0DA10","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-0DA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0DA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1021-0DA10 motor protection circuit breaker, 0.32 A rated current, CLASS 10 trip, 100 kA breaking capacity at 400 V AC, IP20 finger-safe, screw terminals.","salesMarkdown":"## Motor protection circuit breaker for 0.09 kW loads The Siemens 3RV1021-0DA10 is a SIRIUS motor protection circuit breaker rated for 0.32 A continuous current and 0.09 kW at 400 V. Ground fault detection is not included — that function is handled separately upstream or by a downstream RCD. Breaking capacity is 100 kA across the board at 240 V, 400 V, 500 V, and 690 V AC. That is a high-interrupting rating for a 0.32 A device, giving selectivity headroom in a distribution panel without needing a current-limiting upstream breaker. Any mounting position is allowed. Screw-type terminals on both main and auxiliary circuits accept solid or stranded conductors: 2× (1 to 2.5 mm²) and 2× (2.5 to 6 mm²) per clamp, or AWG 14 to 10. The IP20 front protection and finger-safe touch protection mean it can be installed in open panels without additional shrouding. ## Thermal and environmental limits This matters for enclosure thermal rise calculations — in a sealed panel with multiple breakers, the cumulative heat can derate adjacent devices. Shock resistance is 25 g for 11 ms, suitable for machine-mounted applications with moderate vibration. Rated impulse withstand voltage is 6 kV, and the maximum operating voltage is 690 V AC. The maximum switching frequency under AC-3 duty is 15 operations per hour — adequate for motor starting cycles but not for high-speed jogging applications.","metaTitle":"Siemens 3RV1021-0DA10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV1021-0DA10 SIRIUS motor protection circuit breaker, 0.32 A continuous, CLASS 10 trip, 100 kA breaking capacity at 400 V. IP20 finger-safe. Active production. Quoted to o","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","lifecycle_stage":"current","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":"0.09 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":"100 kA","at AC at 500 V rated value":"100 kA","at AC at 690 V rated value":"100 kA","at AC in hot operating state":"5.5 W","Operating Voltage Rated Value":"690 V","Substance Prohibitance (Date)":"01.05.2012 00:00:00","Continuous Current Rated Value":"0.32 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","Ambient Temperature During Storage":"-50 ... +80 °C","Product Extension Auxiliary Switch":"Yes","operating frequency at AC-3 maximum":"15 1/h","Ambient Temperature During Operation":"-20 ... +60 °C","Ambient Temperature During Transport":"-50 ... +80 °C","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 (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","operating voltage at AC-3 rated value maximum":"690 V","operational current at AC-3 at 400 V rated value":"0.32 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 Function 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":"0.22 ... 0.32 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=519805&mlfb=3RV1021-0DA10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0DA10/alternatives.json"},"ai":{"faq":[{"question":"Will 3RV1021-0DA10 drop into a panel specified for 3RV1011-0GA10?","answer":"Both are 45 mm wide SIRIUS breakers on 35 mm DIN rail with screw terminals, so the footprint and mounting are compatible. However, the 3RV1021-0DA10 is rated 0.32 A CLASS 10, while the 3RV1011-0GA10 covers a different current range — verify the motor FLA matches before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-0DA10","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/3RV1021-0DA10 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}}