{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV6021-4FA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV6021-4FA10","canonicalUrl":"https://aoctrl.com/siemens/3RV6021-4FA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV6021-4FA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, motor protection circuit breaker, 3RV6021-4FA10, 40 A rated, Class 10, 690 V, screw-type terminals, size S0.","salesMarkdown":"It combines a thermal overload relay (Class 10 trip) with a magnetic short-circuit trip, rated at 40 A operational current and 690 V maximum. Any mounting position is allowed. That 96 mm depth matters when sizing a shallow enclosure — it's the full projection from the DIN rail face. Screw-type terminals on top and bottom. Accepts solid or stranded: 2×(1–2.5 mm²) or 2×(2.5–10 mm²). AWG equivalents: 2×(16–12) or 2×(14–8). Finely stranded with ferrule: 2×(1–2.5 mm²), 2×(2.5–6 mm²), or 1×10 mm². Torque range for main contacts: 2–2.5 N·m. That 10 mm² single conductor is the largest practical termination for a motor feed. ## Environmental and operating limits Rated for ambient operation -20 to +40 °C; transport/storage range -50 to +80 °C. Relative humidity 10–95% during operation. Installation altitude up to 2,000 m. Shock resistance 25 g / 11 ms per IEC 60068-2-27. Surge voltage withstand 6 kV. Power dissipation 14 W typical at rated load — account for that in enclosure thermal calculations.","metaTitle":"Siemens 3RV6021-4FA10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV6021-4FA10 SIRIUS motor protection circuit breaker, 40 A rated operational current, Class 10 trip, 690 V, screw terminals, DIN rail mount. Currently in production. Reque","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":"70 mm","Forwards":"0 mm","Backwards":"0 mm","Downwards":"70 mm","Trip Class":"CLASS 10","At The Side":"30 mm","Rated Value":"690 V","lifecycle_stage":"current","During Operation":"-20 ... +40 °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":"14 W","Substance Prohibitance (Date)":"05/01/2012","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"40 A","Design Of The Short-Circuit Trip":"magnetic","for AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","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":"40 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":"480 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":"20 kA","operating short-circuit current breaking capacity (Ics) at AC at 400 V rated value":"10 kA","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"34 ... 40 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/eb1bf0ccf0d97573df35b5df008bd6ca.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621286&mlfb=3RV6021-4FA10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV6021-4FA10/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RV6021-4FA10?","answer":"The 3RV6021-4DA10 is the nearest functional peer in the same SIRIUS S0 family. Both are 40 A, Class 10 motor protection breakers with screw terminals. The -4FA10 variant carries a different adjustment range or internal trip characteristic — verify the specific overload setting range on your nameplate before substituting."},{"question":"Will 3RV6021-4FA10 drop into a panel built for 3RV6021-4DA10?","answer":"Yes, the physical footprint is identical: same S0 frame, same 45 mm width, same 96 mm depth, same DIN rail mounting and clearance requirements. No rewiring needed for the mounting — but confirm the trip setting range matches your motor FLA before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV6021-4FA10","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/3RV6021-4FA10 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}}