{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-1KA15-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-1KA15-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-1KA15-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1KA15-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1021-1KA15-ZW97, motor protection circuit breaker, screw-type terminals, 12.5 A rated current, CLASS 10 trip class, 100 kA breaking capacity at 400 V AC, IP20 front protection, 45 mm width, snap-on mounting for 35 mm DIN rail.","salesMarkdown":"The Siemens SIRIUS 3RV1021-1KA15-ZW97 is a motor protection circuit breaker rated for 12.5 A continuous current, sized for a 5.5 kW motor at 400 V AC. Width is 45 mm, height 97 mm, depth 96 mm — fits a standard 45 mm-wide slot on the DIN rail, leaving adjacent slots free for contactors or overloads. Current production — the manufacturer lists this part as active. No last-time-buy or phase-out notice is in effect. ## Termination & auxiliaries 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). The auxiliary switch is transverse design, rated 1 A at 24 V, 0.5 A at 230 V, 0.15 A at 60 V. No factory-fitted auxiliary contacts — the transverse switch is built in for signaling the tripped state. ## Environmental & mechanical limits Shock rated at 25g for 11 ms. Maximum operating altitude 2 000 m without derating. Power loss in hot operating state is 9.25 W at rated current.","metaTitle":"Siemens 3RV1021-1KA15-ZW97 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV1021-1KA15-ZW97 motor protection circuit breaker, 12.5 A continuous, CLASS 10 trip, 100 kA breaking at 400 V. Current production. Sourced to order.","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":"5.5 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":"100 kA","at AC at 500 V rated value":"42 kA","at AC at 690 V rated value":"6 kA","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"100 000","at AC in hot operating state":"9.25 W","Continuous current rated value":"12.5 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":"3.1 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":"9 ... 12.5 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=269970&mlfb=3RV1021-1KA15-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1KA15-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1021-1KA15-ZW97?","answer":"100 kA at 240 V AC and 400 V AC, 42 kA at 500 V AC, 6 kA at 690 V AC. The 100 kA rating at 400 V means this breaker can interrupt the full short-circuit current available from a typical industrial 400 V supply without upstream devices needing to clear the fault."},{"question":"Where can I buy the 3RV1021-1KA15-ZW97?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Current pricing and lead time are confirmed at quote time — submit an RFQ for a firm commitment."},{"question":"What is the closest functional second-source for 3RV1021-1KA15-ZW97 — 3RV6011-0CA10?","answer":"The 3RV6011-0CA10 is a different frame size in the SIRIUS series. The 3RV1021-1KA15-ZW97 is a 45 mm-wide motor protection breaker with screw terminals; the 3RV6011-0CA10 is a compact 45 mm-wide design but with spring-cage terminals and a different accessory footprint. They are not drop-in replacements — verify terminal type, auxiliary contact arrangement, and mounting rail clearance before substituting."},{"question":"What compliance documentation does Siemens provide for 3RV1021-1KA15-ZW97?","answer":"Standard Siemens SIRIUS documentation includes a declaration of conformity to IEC/EN 60947-2 and 60947-4-1, plus RoHS and REACH compliance statements. UL and CSA approvals are typical for this series; the specific certification marks are listed on the product label and in the manufacturer's declaration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-1KA15-ZW97","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/3RV1021-1KA15-ZW97 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}}