{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-4AA10-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-4AA10-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-4AA10-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4AA10-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1021-4AA10-ZX95, motor protection circuit breaker, 16 A, Class 10, 50 kA at 400 V AC, 3-pole, screw terminals, IP20 front.","salesMarkdown":"Rated 7.5 kW at 400 V AC, with a breaking capacity of 50 kA at 400 V AC and 100 kA at 240 V AC. For a motor protection breaker, phase loss is the common killer — a single-phased motor draws locked-rotor current on the remaining phases, and Class 10 clears it fast enough to keep the winding from cooking. Zero clearance needed at the sides or back — 0 mm backwards clearance means you can butt it against the backplane without derating. Main and auxiliary/control circuits both terminate on screw-type terminals. Accepts solid or stranded conductors: 2x (1... 2.5 mm²) and 2x (2.5... 6 mm²) per clamp, or AWG 14–10 for the main contacts. Fine-stranded wire needs a ferrule (core end processing). The dual-wire capacity is useful when you're looping through to a downstream contactor without a separate terminal block. That 45 mm width is three 15 mm module slots on a standard DIN rail — plan your enclosure fill factor accordingly. ## Environmental and electrical ratings Shock rated at 25g for 11 ms, which covers most industrial vibration from nearby conveyors or compressors. Rated insulation voltage 690 V, surge voltage resistance 6 kV. Maximum operating frequency in AC-3 duty is 15 operations per hour. Not a rapid-cycling part; if your application needs frequent starts (like a crane or press), you'll want a contactor with a higher rated operational current or a dedicated motor starter. Power dissipation is 9.25 W total in hot operating state, or 3.1 W per pole. RoHS compliance date is 01.05.2012, so it meets the EU RoHS directive for substances.","metaTitle":"Siemens SIRIUS 3RV1021-4AA10-ZX95 Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV1021-4AA10-ZX95 motor protection circuit breaker, 16 A, Class 10, 50 kA at 400 V AC. Active production. Sourced to order against an RFQ.","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":"7.5 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":"9.25 W","Substance Prohibitance (Date)":"01.05.2012","Continuous Current Rated Value":"16 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":"3.1 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":"16 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":"11 ... 16 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=139325&mlfb=3RV1021-4AA10-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4AA10-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is 3RV1021-4AA10-ZX95's listed depth?","answer":"96 mm deep, with 0 mm backwards clearance required."},{"question":"What conductor sizes does 3RV1021-4AA10-ZX95 accept?","answer":"Solid and stranded: 2x (1 … 2.5 mm²) and 2x (2.5 … 6 mm²) per clamp, or AWG 14–10 for the main contacts. Fine-stranded wire requires a ferrule."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-4AA10-ZX95","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/3RV1021-4AA10-ZX95 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}}