{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-0KA15-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-0KA15-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-0KA15-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0KA15-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-0KA15-ZW97, 1.25 A continuous, Trip Class 10, 100 kA breaking capacity at 400 V AC, screw terminals, snap-on DIN rail mounting.","salesMarkdown":"The front face is IP20 — safe for finger contact inside an enclosed panel. Screw terminals on both main and auxiliary circuits accept solid wire from 0.5 to 1.5 mm² (two conductors) and stranded up to 6 mm², so it'll handle the typical control-wiring gauges you find in a motor starter bucket. The 100 kA breaking capacity at 400 V (and at 240, 500, and 690 V) means this breaker can interrupt a fault current up to that level without welding contacts or venting plasma — critical for meeting the SCCR rating of the panel. Phase-failure detection is built in, so it protects against single-phasing on a three-phase motor. Ground-fault detection is not included — that's handled separately in the feeder or by a GFCI module. Auxiliary switch is available as an add-on (product extension auxiliary switch = Yes), transverse design, so you can wire a status signal back to the PLC or annunciator without a separate contactor block. Zero clearance needed at the sides or rear. Depth is 96 mm, width 45 mm, height 97 mm.","metaTitle":"Siemens 3RV1021-0KA15-ZW97 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV1021-0KA15-ZW97 motor protection circuit breaker, 1.25 A continuous, Trip Class 10, 100 kA breaking capacity at 400 V. Screw terminals, snap-on DIN rail. Active p","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":"0.37 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":"100 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":"1.25 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":"1.25 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":"0.9 ... 1.25 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=294332&mlfb=3RV1021-0KA15-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0KA15-ZW97/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-0KA15-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/3RV1021-0KA15-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}}