{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2021-4EA15-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2021-4EA15-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3RV2021-4EA15-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2021-4EA15-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker 3RV2021-4EA15-0BA0, CLASS 10, 7.5 kW at 230 V, 10 kA breaking capacity at 400 V AC, screw and snap-on mounting for 35 mm DIN rail.","salesMarkdown":"It is rated for 7.5 kW at 230 V and delivers a breaking capacity of 10 kA at 400 V AC, meaning it can safely interrupt fault currents up to that level on a 400 V line without cascading upstream. The 45 mm width (3 module spaces) fits standard enclosure rail layouts. Terminal connections are screw-type for the main circuit, accepting 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²) solid or stranded wire.","metaTitle":"Siemens 3RV2021-4EA15-0BA0 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV2021-4EA15-0BA0 SIRIUS motor protection circuit breaker, CLASS 10 trip, 7.5 kW at 230 V, 10 kA breaking capacity at 400 V AC. Screw and snap-on mounting for 35 mm DIN ra","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"97 mm","Width":"45 mm","Height":"97 mm","Upwards":"50 mm","at 24 V":"1 A","at 60 V":"0.15 A","Forwards":"0 mm","at 120 V":"0.5 A","at 125 V":"0.5 A","at 230 V":"0.5 A","at 400 V":"gG 63 A","at 500 V":"gG 63 A","at 690 V":"gG 63 A","Backwards":"0 mm","Downwards":"50 mm","Trip Class":"CLASS 10","At The Side":"30 mm","Rated Value":"20 ... 690 V","During Storage":"-50 ... +80 °C","at AC-3 maximum":"15 1/h","lifecycle_stage":"current","During Operation":"-50 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","For Main Contacts":"M4","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","at 230 V rated value":"7.5 kW","at 240 V rated value":"10 kA","at 400 V rated value":"10 kA","at 500 V rated value":"5 kA","at 690 V rated value":"2 kA","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":"25 kA","at AC at 400 V rated value":"25 kA","at AC at 500 V rated value":"10 kA","at AC at 690 V rated value":"4 kA","Design Of Screwdriver Shaft":"Diameter 5 to 6 mm","Size Of The Circuit-Breaker":"S0","Size Of The Screwdriver Tip":"Pozidriv size 2","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"500","at AC in hot operating state":"13.25 W","at AC-3 at 400 V rated value":"32 A","Of Auxiliary Contacts Typical":"500","Substance Prohibitance (Date)":"10/01/2009","Design Of The Auxiliary Switch":"transverse","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"32 A","Design Of The Short-Circuit Trip":"magnetic","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","Display Version For Switching Status":"Handle","Surge Voltage Resistance Rated Value":"6 kV","Of The Auxiliary And Control Contacts":"M3","at AC in hot operating state per pole":"4.4 W","With Side-By-Side Mounting At The Side":"0 mm","reference code according to IEC 81346-2":"Q","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","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"25g / 11 ms","Electrical Endurance (Operating Cycles) Typical":"500","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","Size Of Contactor Can Be Combined Company-Specific":"S00, S0","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 10 A, miniature circuit breaker C 6 A (short-circuit current Ik < 400 A)","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"400 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"27 ... 32 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/69e3aae776a3a972c11948ccacc118a3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=229856&mlfb=3RV2021-4EA15-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2021-4EA15-0BA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV2021-4EA15-0BA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source for 3RV2021-4EA15-0BA0?","answer":"The 3RV2021-4NA25 is a peer in the same SIRIUS family. The key difference is the 3RV2021-4EA15-0BA0 uses screw-type terminals for the main circuit, while the 3RV2021-4NA25 uses spring-loaded terminals. Both share the same 45 mm width and CLASS 10 trip characteristic, so a panel designed for one can accept the other without rewiring the bus bars, but terminal preparation differs."},{"question":"What is 3RV2021-4EA15-0BA0's listed depth?","answer":"The depth is 97 mm, with a width of 45 mm and height of 97 mm."},{"question":"Will 3RV2021-4EA15-0BA0 drop into a panel specified around 3RV2021-4NA25?","answer":"Yes — both share the same 45 mm width and mount on 35 mm DIN rail, so the footprint is identical. The only difference is the terminal type: screw-type on this unit versus spring-loaded on the 3RV2021-4NA25. The panel cut-out and bus bar positions are the same."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2021-4EA15-0BA0","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/3RV2021-4EA15-0BA0 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}}