{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-4BA15-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-4BA15-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-4BA15-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4BA15-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-4BA15-ZX95, 20 A continuous rated current, CLASS 10 trip class, 50 kA breaking capacity at 400 V AC, screw-type terminals, IP20 front protection.","salesMarkdown":"## Motor Protection Circuit Breaker for 7.5 kW Loads at 400 V The Siemens SIRIUS 3RV1021-4BA15-ZX95 is a motor protection circuit breaker rated for 20 A continuous current with a CLASS 10 trip characteristic, sized for a 7.5 kW motor at 400 V AC. It snaps onto a 35 mm DIN rail per DIN EN 50022 and occupies a 45 mm wide footprint, 97 mm tall, 96 mm deep — a standard panel-mount profile for motor starters in the SIRIUS family. Breaking capacity varies with line voltage: 100 kA at 240 V AC, 50 kA at 400 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC. At 400 V — the most common industrial motor voltage — the 50 kA rating gives substantial headroom for high-fault-current panels, allowing selective coordination with upstream feeders without cascading failure. Maximum switching frequency under AC-3 duty is 15 operations per hour, and power dissipation in the hot operating state is 10.5 W — relevant for enclosure thermal calculations when grouping multiple breakers. Main circuit and auxiliary/control circuit connections use screw-type terminals. Solid conductors accepted: 2× (0.5 to 1.5 mm²) and 2× (0.75 to 2.5 mm²). Stranded conductors: 2× (1 to 2.5 mm²) and 2× (2.5 to 6 mm²). AWG equivalents for main contacts: 2× (14 to 10). The auxiliary switch is transverse design, and the product extension for an auxiliary switch is supported.","metaTitle":"Siemens 3RV1021-4BA15-ZX95 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV1021-4BA15-ZX95 motor protection circuit breaker, 20 A continuous, CLASS 10 trip, 50 kA at 400 V AC. Active production. Sourced to order against RFQ.","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":"7.5 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":"50 kA","at AC at 500 V rated value":"10 kA","at AC at 690 V rated value":"4 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"10.5 W","Substance Prohibitance (Date)":"01.05.2012","Continuous Current Rated Value":"20 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":"3.5 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":"20 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":"14 ... 20 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=124019&mlfb=3RV1021-4BA15-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4BA15-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RV1021-4BA15-ZX95?","answer":"The 3RV6021-4DA10 is a peer in the SIRIUS family but check the specific rating differences — the 3RV1021-4BA15-ZX95 is rated 20 A continuous with CLASS 10 trip, while the 3RV6021-4DA10 may carry different current or breaking capacity ratings. Verify the nameplate ratings before substituting in an existing panel."},{"question":"Where can I buy 3RV1021-4BA15-ZX95 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What compliance documentation does Siemens provide for 3RV1021-4BA15-ZX95?","answer":"The substance prohibition date of 01.05.2012 indicates RoHS and REACH compliance. The product carries IP20 front protection and is designed to DIN EN 50022 mounting rail standards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-4BA15-ZX95","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/3RV1021-4BA15-ZX95 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}}