{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-1EA15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-1EA15","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-1EA15","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1EA15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1021-1EA15, motor protection circuit breaker, 4 A rated continuous current, Class 10 trip class, 100 kA breaking capacity at 400 V AC, screw-type terminals, 45 mm width.","salesMarkdown":"The 45 mm width means it takes one standard module slot in a panel — no surprises when laying out a row of breakers. IP20 on the front, so it's protected against finger contact once the panel door is closed. The 4 A continuous rating sets the motor FLA it can carry without nuisance tripping. Breaking capacity holds at 100 kA up through 500 V AC, dropping to 6 kA at 690 V AC; at 400 V, that 100 kA covers virtually any industrial fault level you'll find downstream of a distribution transformer. The 1.5 kW motor power rating at 400 V gives a quick sizing reference for three-phase squirrel-cage motors. The main circuit accepts solid conductors from 0.5 to 1.5 mm² (two per clamp) or 0.75 to 2.5 mm² (two per clamp); stranded goes up to 2.5 mm² (two per clamp) or 2.5 to 6 mm² (two per clamp). That covers most motor branch circuit wiring up to about 4 mm² for the feed. Auxiliary switch contacts are rated 1 A at 24 V, 0.5 A at 230 V, and 0.15 A at 60 V — enough for a PLC input or a contactor coil.","metaTitle":"Siemens 3RV1021-1EA15 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV1021-1EA15 SIRIUS motor protection circuit breaker, 4 A continuous, Class 10 trip, 100 kA breaking at 400 V. Screw terminals, DIN rail mount. Active production. Sourced","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 (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"45 mm","Height":"97 mm","at 24 V":"1 A","at 60 V":"0.15 A","Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","at 230 V":"0.5 A","Backwards":"0 mm","Trip Class":"CLASS 10","At The Side":"0 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","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 50022","Shock Resistance":"25g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"circuit breaker","at 400 V rated value":"1.5 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":"6 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"7.25 W","Substance Prohibitance (Date)":"05/01/2012","Continuous Current Rated Value":"4 A","Design Of The Auxiliary Switch":"transverse","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 000 V","at AC in hot operating state per pole":"2.4 W","for AWG cables for auxiliary contacts":"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","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","operational current at AC-3 at 400 V rated value":"4 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 Component Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Operating Cycles) Of The Main Contacts Typical":"100 000","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"2.8 ... 4 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=258831&mlfb=3RV1021-1EA15","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1EA15/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1021-1EA15 at 400 V?","answer":"100 kA at 400 V AC, which is the same rating it holds at 240 V and 500 V. At 690 V it drops to 6 kA."},{"question":"Does 3RV1021-1EA15 have phase failure protection?","answer":"Yes, phase failure detection is included. It will trip if one phase is lost, preventing single-phasing damage to the motor."},{"question":"Where can I buy 3RV1021-1EA15?","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 compliance documentation is available for 3RV1021-1EA15?","answer":"The part carries a RoHS compliance date of May 1, 2012, indicating it meets the RoHS substance restrictions. Standard Siemens documentation includes the declaration of conformity and technical data sheet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-1EA15","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/3RV1021-1EA15 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}}