{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-1CA10-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-1CA10-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-1CA10-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1CA10-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor-protective circuit breaker, 3RV1021-1CA10-ZW97, 2.5 A continuous, CLASS 10 trip, 100 kA breaking at 400 V, 3-pole, screw terminals, 45 mm width.","salesMarkdown":"## SIRIUS 3RV1021-1CA10-ZW97 — motor-protective circuit breaker, 2.5 A, CLASS 10 The Siemens 3RV1021-1CA10-ZW97 is a SIRIUS motor-protective circuit breaker rated for 2.5 A continuous current with a CLASS 10 trip characteristic, meaning it clears overloads fast enough to protect standard induction motors during a stalled-rotor start without nuisance tripping on normal acceleration. Its 100 kA breaking capacity at 400 V AC gives it the headroom to interrupt high fault currents in a 400 V distribution system without upstream fuses or a larger breaker — the 8 kA rating at 690 V still covers most 690 V motor circuits. There is no ground-fault detection — that is handled separately by a residual-current device or a ground-fault module if the application requires it. The 45 mm wide housing snaps onto a 35 mm DIN rail per DIN EN 50022 — standard for any European-style control panel. Screw terminals on both the main and auxiliary circuits accept solid or stranded conductors up to 6 mm², which is generous for a 2.5 A device and simplifies paralleling control wiring. The auxiliary switch slot allows adding a remote status contact without increasing the panel footprint.","metaTitle":"Siemens 3RV1021-1CA10-ZW97 SIRIUS Motor Circuit Breaker, 2.5","metaDescription":"Siemens 3RV1021-1CA10-ZW97 SIRIUS motor-protective circuit breaker, 2.5 A continuous, CLASS 10 trip, 100 kA breaking at 400 V. Active production. Quoted 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 (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Width":"45 mm","Height":"97 mm","Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","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":"0.75 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":"8 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":"2.5 A","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 AC in hot operating state per pole":"2.4 W","Finely Stranded With Core End Processing":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 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":"2.5 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":"1.8 ... 2.5 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=429610&mlfb=3RV1021-1CA10-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1CA10-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What conductor sizes does the 3RV1021-1CA10-ZW97 accept?","answer":"The screw terminals accept solid or stranded conductors: 2x (1... 2.5 mm²) and 2x (2.5... 6 mm²) per pole. For AWG, that is 2x (14... 10)."},{"question":"Will the 3RV1021-1CA10-ZW97 fit in a panel designed for the 3RV1011-0HA10?","answer":"The 3RV1021-1CA10-ZW97 is 45 mm wide versus the 3RV1011 frame's 45 mm as well, so the width is the same. However, the depth and terminal layout may differ — check the mounting dimensions before assuming a direct swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-1CA10-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/3RV1021-1CA10-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}}