{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-1EA15-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-1EA15-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-1EA15-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1EA15-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-1EA15-ZW95, 4 A continuous rated, Class 10 trip, 100 kA breaking capacity at 400 V AC, screw terminals, IP20 front, DIN rail mount.","salesMarkdown":"It is part of the SIRIUS product family, a widely used industrial control component line. Rated at 4 A continuous current with Trip Class 10, it provides fast overload protection for motors up to 1.5 kW at 400 V AC (AC-3 duty). Built-in phase failure detection protects three-phase motors against single-phasing, a common cause of winding burnout. No ground-fault detection on this variant. Occupies 45 mm width, 97 mm height, 96 mm depth — a standard three-module footprint that fits most panel layouts. Any mounting position allowed. Front face carries IP20 protection — touch-safe for standard panel environments, but not washdown-rated. Screw-type terminals on both main and auxiliary circuits; accepts solid conductors 2x (0.5…1.5 mm²) and 2x (0.75…2.5 mm²), stranded 2x (1…2.5 mm²) and 2x (2.5…6 mm²). AWG equivalent 2x (14…10) for main contacts. Auxiliary switch contact rated 1 A at 24 V, 0.5 A at 230 V, 0.15 A at 60 V — suitable for signaling to a PLC input or status lamp. Transverse design auxiliary switch ships with the base unit; product extension for auxiliary switch is yes, meaning add-on blocks can be fitted. Shock rated 25 g / 11 ms. Substance prohibition date 01.05.2012 indicates RoHS compliance (RoHS directive 2011/65/EU effective from that date). Power dissipation 7.25 W in hot operating state at rated current — factor into panel thermal calculations when grouping multiple breakers.","metaTitle":"Siemens 3RV1021-1EA15-ZW95 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV1021-1EA15-ZW95 motor protection circuit breaker, 4 A continuous rated current, Trip Class 10, 100 kA breaking capacity at 400 V AC, phase failure detection, IP20","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 standard mounting 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)":"01.05.2012","Continuous Current Rated Value":"4 A","Design Of The Auxiliary Switch":"transverse","at AWG cables for main contacts":"2x (14 ... 10)","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 AWG cables for auxiliary contacts":"2x (18 ... 14)","at AC in hot operating state per pole":"2.4 W","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 (Switching 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=882&mlfb=3RV1021-1EA15-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1EA15-ZW95/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3RV1021-1EA15-ZW95?","answer":"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 this part?","answer":"The 3RV1011-1AA15 is a functionally similar SIRIUS motor protection breaker but from an earlier generation. The 3RV1021-1EA15-ZW95 offers higher breaking capacity (100 kA vs lower rating on the 3RV1011) and phase failure detection. Panel footprint and DIN rail mounting are compatible, but verify terminal ratings and auxiliary contact configuration against your specific wiring plan before substituting."},{"question":"What is the depth of this circuit breaker?","answer":"Listed depth is 96 mm. Overall dimensions: 45 mm width × 97 mm height × 96 mm depth."},{"question":"What wire sizes does the 3RV1021-1EA15-ZW95 accept?","answer":"Screw terminals accept solid conductors 2x (0.5…1.5 mm²) and 2x (0.75…2.5 mm²), stranded 2x (1…2.5 mm²) and 2x (2.5…6 mm²). AWG equivalent 2x (14…10) for main contacts."},{"question":"Will the 3RV1021-1EA15-ZW95 drop into a panel designed for the 3RV1011-1AA15?","answer":"Yes. Both share the same 45 mm width and 35 mm DIN rail mounting per DIN EN 50022. The 3RV1021-1EA15-ZW95 adds phase failure detection and higher breaking capacity (100 kA vs lower on the 3RV1011) so it is a functional upgrade. Terminal layout is similar but verify auxiliary contact wiring as the transverse design may differ in orientation."},{"question":"What compliance documentation does this part carry?","answer":"RoHS compliant per substance prohibition date 01.05.2012. Operating temperature -20 to +60 °C, storage -50 to +80 °C. IP20 front protection. No UL or CSA listing is cited in the available records."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-1EA15-ZW95","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-ZW95 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}}