{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-4BA15-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-4BA15-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-4BA15-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4BA15-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-4BA15-ZW96, 20 A continuous, CLASS 10 trip, 50 kA SCCR at 400 V, screw and snap-on DIN rail mount.","salesMarkdown":"The Siemens SIRIUS 3RV1021-4BA15-ZW96 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-3 duty. Screw-type terminals on the main circuit accept solid conductors from 0.5 to 1.5 mm² (two per clamp) and stranded from 1 to 6 mm² (two per clamp). Shock resistance is 25 g for 11 ms — adequate for most industrial machinery but not for high-vibration rotating equipment without additional damping. Maximum altitude 2 000 m without derating. Power dissipation in hot operating state is 10.5 W at rated current. ## Switching capacity and auxiliary contacts Breaking capacity varies by 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. The auxiliary switch is transverse design with no factory-fitted auxiliary contacts (0 provided); the transverse slot accepts add-on blocks if needed. Auxiliary contact ratings: 1 A at 24 V, 0.5 A at 230 V, 0.15 A at 60 V. Maximum switching frequency in AC-3 duty is 15 operations per hour.","metaTitle":"Siemens 3RV1021-4BA15-ZW96 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV1021-4BA15-ZW96 motor protection circuit breaker, 20 A continuous, CLASS 10 trip, 50 kA SCCR at 400 V. Phase failure detection. Current lifecycle. Quoted on reque","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","Maximum":"2 000 m","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","On The Front":"IP20","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","During Storage":"-50 ... +80 °C","at AC-3 maximum":"15 1/h","lifecycle_stage":"current","Auxiliary switch":"Yes","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","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","For Auxiliary Contacts":"0","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","Of The Main Contacts Typical":"100 000","at AC in hot operating state":"10.5 W","Continuous current rated value":"20 A","Design of the auxiliary switch":"transverse","at AWG conductors for main contacts":"2x (14 ... 10)","Surge voltage resistance rated value":"6 000 V","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","at AWG conductors for auxiliary contacts":"2x (18 ... 14)","For Auxiliary And Control Current Circuit":"screw-type terminals","Removable Terminal For Auxiliary And Control Circuit":"No","Design of the overcurrent release and short-circuit release":"thermomagnetic","Arrangement of electrical connectors for main current circuit":"front side","Adjustable pick-up 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=212286&mlfb=3RV1021-4BA15-ZW96","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4BA15-ZW96/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV1021-4BA15-ZW96 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the closest functional second-source to 3RV1021-4BA15-ZW96?","answer":"The 3RV1011-1HA10 is a smaller-frame SIRIUS motor protection breaker (lower continuous rating), so it will not drop into a panel wired for the 20 A 3RV1021-4BA15-ZW96 without rewiring the main conductors and checking the fault-current rating. The 3RV1021-4BA15-ZW96 is the correct direct fit for the 20 A CLASS 10 application."},{"question":"What compliance documentation does Siemens provide for 3RV1021-4BA15-ZW96?","answer":"As a SIRIUS motor protection circuit breaker, it carries IEC/EN 60947-2 and 60947-4-1 compliance. UL and CSA approvals are standard for the SIRIUS family; RoHS and REACH declarations are available from Siemens on request. Specific certification markings should be verified against the nameplate on the unit received."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-4BA15-ZW96","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-ZW96 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}}