{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-4DA10-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-4DA10-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-4DA10-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4DA10-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1021-4DA10-ZW95 motor protection circuit breaker, 3-pole, 25 A rated current, 11 kW at 400 V, Class 10 trip, 50 kA breaking capacity at 400 V AC, screw terminals, IP20 front.","salesMarkdown":"The Siemens SIRIUS 3RV1021-4DA10-ZW95 is a 3-pole motor protection circuit breaker rated for 25 A continuous current and 11 kW at 400 V AC. At 690 V it still interrupts 4 kA, so it can serve 690 V motor circuits in regions where that line voltage is standard. No ground-fault detection on this variant, so a separate ground-fault module or RCD is needed if that protection is required. The 25 A continuous rating is the thermal setting range; the actual adjustable overload relay inside the breaker is set to match the motor FLA. Trip Class 10 pairs with standard IEC and NEMA Design B motors — the 10-second window at 7.2× FLA is the typical benchmark for motor protection coordination. ## Integration Notes Main contacts accept 2× (1–2.5 mm²) or 2× (2.5–6 mm²) solid or stranded — strip length is standard 8–10 mm for screw clamps. Auxiliary switch extension is supported (product extension auxiliary switch = Yes), so a separate 3RV19xx auxiliary contact block can be snapped onto the side for remote status indication. Mounting position is any orientation. Shock rated at 25g for 11 ms — suitable for machine-mounted applications with moderate vibration. Maximum switching frequency under AC-3 duty is 15 operations per hour — fine for motor starting on pumps, fans, or compressors; not intended for high-cycling applications like rapid reversing or jogging.","metaTitle":"Siemens 3RV1021-4DA10-ZW95 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV1021-4DA10-ZW95 SIRIUS motor protection circuit breaker, 25 A continuous, 11 kW at 400 V, Class 10 trip, 50 kA breaking capacity. Current production. Available 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":"11 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":"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","at AC in hot operating state":"10.5 W","Substance Prohibitance (Date)":"01.05.2012","Continuous Current Rated Value":"25 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":"3.5 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":"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":"20 ... 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=479488&mlfb=3RV1021-4DA10-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4DA10-ZW95/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1021-4DA10-ZW95 at different voltages?","answer":"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."},{"question":"Where can I buy 3RV1021-4DA10-ZW95 and how is it quoted?","answer":"This part is sourced to order through independent distribution against an RFQ. Submit a request for current pricing and availability — no stock count or price is listed here."},{"question":"Does 3RV1021-4DA10-ZW95 include phase failure protection?","answer":"Yes, phase failure detection is built in. Ground fault detection is not included on this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-4DA10-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/3RV1021-4DA10-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}}