{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-1CA15-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-1CA15-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-1CA15-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1CA15-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-1CA15-ZW95, 2.5 A continuous rated current, Class 10 trip, 100 kA breaking capacity at 400 V AC, screw-type terminals, snap-on 35 mm DIN rail mounting.","salesMarkdown":"It carries a continuous rated current of 2.5 A and trips under Class 10 overload protection, meaning it clears a stalled-rotor condition within 10 seconds at 7.2× Ie — fast enough to protect a standard induction motor winding before insulation damage sets in. The high 100 kA rating holds through 500 V, so it coordinates cleanly with upstream fuses or a moulded-case breaker without requiring a current-limiting device. The 45 mm width takes one standard DIN slot. Main circuit terminals accept 2x (1... 2.5 mm²) stranded or 2x (0.75... 2.5 mm²) solid; auxiliary and control circuit terminals are screw-type as well. Zero clearance needed at the sides or rear — stack them tight in a panel. ## Auxiliary switch and environmental limits The product extension auxiliary switch is transverse-designed and rated at 1 A at 24 V, 0.5 A at 230 V, and 0.15 A at 60 V — enough to signal a trip back to a PLC input or a status lamp. Shock resistance is 25 g for 11 ms. IP20 on the front face keeps fingers out but the breaker is intended for inside an enclosure, not exposed.","metaTitle":"Siemens 3RV1021-1CA15-ZW95 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV1021-1CA15-ZW95 motor protection circuit breaker. 2.5 A continuous, Class 10 trip, 100 kA breaking capacity at 400 V. Current production. Sourced to order against","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":"0.75 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","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":"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=429011&mlfb=3RV1021-1CA15-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1CA15-ZW95/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1021-1CA15-ZW95 at 400 V?","answer":"100 kA at 400 V AC, which holds through 500 V. At 690 V AC it derates to 8 kA."},{"question":"What does Class 10 trip mean for motor protection?","answer":"Class 10 means the breaker will trip within 10 seconds at 7.2 times the rated current, protecting standard induction motor windings from thermal damage during a stalled rotor or locked-rotor condition."},{"question":"Where can I get pricing and availability for 3RV1021-1CA15-ZW95?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Current pricing and availability are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-1CA15-ZW95","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/3RV1021-1CA15-ZW95 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}}