{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV6021-4CA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV6021-4CA10","canonicalUrl":"https://aoctrl.com/siemens/3RV6021-4CA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV6021-4CA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV6021-4CA10, motor protection circuit breaker, size S0, 3-pole, 22 A rated operational current at AC-3, Class 10 trip, thermal-magnetic, screw terminals, 45 mm wide.","salesMarkdown":"It combines a thermal overload release (Class 10) with a magnetic short-circuit trip in a single 3-pole device, rated for 22 A at AC-3 duty at 400 V. The 22 A rating means it directly protects a motor drawing up to that full-load current — the Class 10 trip characteristic ensures it clears a stalled rotor fast enough for standard induction motors without nuisance tripping on startup inrush. At 45 mm wide (S0 frame), it occupies a single modular slot, leaving room for auxiliary contact blocks or a separate contactor alongside on the same rail. Screw-type terminals on top and bottom accept solid or stranded copper: 2×(1…2.5 mm²) or 2×(2.5…10 mm²) per pole, with tightening torque 2…2.5 N·m. Rated operational current 22 A at AC-3 at 400 V — this is the motor-switching rating, not the resistive (AC-1) value. The maximum operating voltage is 690 V AC, so the breaker can be used on 400 V, 480 V, or 690 V line supplies as long as the motor FLA stays at or below 22 A. The magnetic short-circuit trip provides instantaneous protection for fault currents. Power loss is 8 W typical, which matters for enclosure thermal budgeting when multiple breakers are ganged. Operating temperature range -20…+60 °C, storage/transport -50…+80 °C. Relative humidity 10…95% during operation. Shock resistance 25g / 11 ms per IEC 60068-2-27. Installation altitude up to 2000 m above sea level. The product complies with RoHS substance prohibitions (date 05/01/2012).","metaTitle":"Siemens 3RV6021-4CA10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV6021-4CA10 SIRIUS motor protection circuit breaker, 22 A rated operational current, Class 10 trip, 3-pole, S0 size, screw terminals, DIN rail mount. Active lifecycle, av","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"96 mm","Width":"45 mm","Height":"97 mm","Upwards":"50 mm","Forwards":"0 mm","Backwards":"0 mm","Downwards":"50 mm","Trip Class":"CLASS 10","At The Side":"30 mm","Rated Value":"690 V","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","Mounting Position":"any","Solid Or Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","Design Of The Product":"for motor protection","For Main Current Circuit":"screw-type terminals","Size Of The Circuit-Breaker":"S0","at AC-3 rated value maximum":"690 V","power loss [W] total typical":"8 W","Substance Prohibitance (Date)":"05/01/2012","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"22 A","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","Design Of The Short-Circuit Trip":"magnetic","Relative Humidity During Operation":"10 ... 95 %","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 kV","Finely Stranded With Core End Processing":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","For Main Contacts With Screw-Type Terminals":"2 ... 2.5 N·m","shock resistance according to IEC 60068-2-27":"25g / 11 ms","operational current at AC-3 at 400 V rated value":"22 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"286 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","maximum short-circuit current breaking capacity (Icu) at AC at 400 V rated value":"55 kA","operating short-circuit current breaking capacity (Ics) at AC at 400 V rated value":"25 kA","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"16 ... 22 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/215ab299058749862263b9f6e43fbbe4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621280&mlfb=3RV6021-4CA10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV6021-4CA10/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RV6021-4CA10?","answer":"The 3RV6021-4DA10 is the nearest sibling — same S0 frame, same 3-pole thermal-magnetic design, same Class 10 trip, same mounting and terminal arrangement. The difference is the current rating: the 4DA10 is set for a higher trip current (exact value depends on the variant). If your motor FLA is 22 A, the 4CA10 is the correct choice; the 4DA10 would require a different setting range. Both drop into the same panel footprint without rewiring."},{"question":"Where can I buy the 3RV6021-4CA10 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 — submit an RFQ for a firm offer."},{"question":"What compliance documentation does the 3RV6021-4CA10 carry?","answer":"RoHS compliant per substance prohibition date 05/01/2012. The product is designed to IEC standards for motor protection circuit breakers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV6021-4CA10","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/3RV6021-4CA10 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}}