{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV6021-4NA15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV6021-4NA15","canonicalUrl":"https://aoctrl.com/siemens/3RV6021-4NA15","factsUrl":"https://aoctrl.com/api/mcp/products/3RV6021-4NA15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV6021-4NA15, size S0, 3-pole, 28 A rated operational current, Class 10, 690 V AC-3, screw terminals, snap-on 35 mm DIN rail.","salesMarkdown":"The Siemens 3RV6021-4NA15 is a SIRIUS motor protection circuit breaker in the size S0 frame, rated for 28 A operational current at 690 V AC-3 with a Class 10 trip characteristic. It protects motor circuits against overload (thermal release) and short-circuit (magnetic release) in a single device, saving panel space over a separate contactor and overload relay combination. The 28 A rating at AC-3 duty means it handles motor starting currents up to that level — typical for a 15 kW (20 hp) motor at 400 V three-phase. The Class 10 trip curve allows the breaker to ride through normal start-up without nuisance tripping, yet still protect the motor from sustained overloads. Any mounting position is permitted, so it can be oriented to suit panel layout. Screw-type terminals on both main and auxiliary circuits accept 2x (0.5…1.5 mm²) solid or stranded, or 2x (0.75…2.5 mm²) — standard for panel wiring. Torque to 2…2.5 N·m on the main contacts. Humidity tolerance 10…95 % RH. Shock rated at 25 g / 11 ms per IEC 60068-2-27. RoHS compliance date of 05/01/2012 (substance prohibition). Rated impulse withstand voltage 6 kV, surge voltage resistance 6 kV. Power dissipation 11 W typical at rated load.","metaTitle":"Siemens 3RV6021-4NA15 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV6021-4NA15 SIRIUS motor protection circuit breaker, 28 A rated current, Class 10 trip, 690 V AC-3, size S0, DIN rail mount. 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","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 standard mounting rail according to DIN EN 60715","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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":"11 W","Substance Prohibitance (Date)":"05/01/2012","Design Of The Auxiliary Switch":"transverse","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"28 A","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","Design Of The Short-Circuit Trip":"magnetic","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"10 ... 95 %","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","operational current at AC-3 at 400 V rated value":"28 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":"364 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","breaking capacity maximum short-circuit current (Icu) at AC at 400 V rated value":"55 kA","breaking capacity operating short-circuit current (Ics) at AC at 400 V rated value":"25 kA","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"23 ... 28 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2f890dac0d11db7fd4cfa31281211d45.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621289&mlfb=3RV6021-4NA15","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV6021-4NA15/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between 3RV6021-4NA15 and the 3RV6021-4DA10?","answer":"Both are size S0 motor protection circuit breakers in the SIRIUS family with the same footprint, mounting, and terminal layout. The -4NA15 is rated 28 A with Class 10 trip; the -4DA10 is a lower current variant. They are not electrically interchangeable without checking the motor FLA, but they share the same mechanical fit — so a panel designed for one can accept the other without rewiring the rail or terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV6021-4NA15","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/3RV6021-4NA15 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}}