{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-4AA15-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-4AA15-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-4AA15-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4AA15-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, motor-protective circuit breaker, 3RV1021-4AA15-ZX95, 16 A continuous current, CLASS 10 trip class, 50 kA breaking capacity at 400 V AC, screw-type terminals, phase failure detection.","salesMarkdown":"## What this breaker does for your motor branch The Siemens 3RV1021-4AA15-ZX95 is a SIRIUS motor-protective circuit breaker rated for 16 A continuous current with a CLASS 10 trip characteristic, meaning it clears overloads fast enough to protect standard induction motors during start-up without nuisance tripping on normal inrush. Rated motor power at 400 V is 7.5 kW, which lines up with a typical 10 HP four-pole induction motor on a conveyor or pump. The trip class CLASS 10 holds takt time on a weld line: it lets the motor accelerate under load without dropping out, but still trips inside 10 seconds at 7.2× rated current — deterministic, every cycle. The 45 mm width and 97 mm height fit a standard panel grid; depth is 96 mm. Terminals are screw-type on the main current circuit. Solid conductors: 2×(0.5…1.5 mm²) and 2×(0.75…2.5 mm²). Stranded: 2×(1…2.5 mm²) and 2×(2.5…6 mm²). The auxiliary switch is transverse design with zero auxiliary contacts fitted as standard — add a separate auxiliary block if you need a remote status signal. Operating temperature range is -20 to +60 °C; storage and transport from -50 to +80 °C. Shock rated at 25 g / 11 ms, which covers most industrial vibration environments.","metaTitle":"Siemens 3RV1021-4AA15-ZX95 SIRIUS Motor Circuit Breaker, 16","metaDescription":"Siemens 3RV1021-4AA15-ZX95 SIRIUS motor-protective circuit breaker, 16 A continuous, CLASS 10 trip, 50 kA SCCR at 400 V. Phase failure detection. Screw terminals. Active production","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","Maximum":"2 000 m","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","On The Front":"IP20","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","During Storage":"-50 ... +80 °C","at AC-3 maximum":"15 1/h","lifecycle_stage":"current","Auxiliary switch":"Yes","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","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","For Auxiliary Contacts":"0","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","Of The Main Contacts Typical":"100 000","at AC in hot operating state":"9.25 W","Continuous current rated value":"16 A","Design of the auxiliary switch":"transverse","at AWG conductors for main contacts":"2x (14 ... 10)","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 (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (18 ... 14)","For Auxiliary And Control Current Circuit":"screw-type terminals","Removable Terminal For Auxiliary And Control Circuit":"No","Design of the overcurrent release and short-circuit release":"thermomagnetic","Arrangement of electrical connectors for main current circuit":"front side","Adjustable pick-up 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=104833&mlfb=3RV1021-4AA15-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-4AA15-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this breaker at 400 V?","answer":"It delivers 50 kA breaking capacity at 400 V AC, which is the SCCR you use for fault-current coordination in the panel schedule."},{"question":"Does this breaker detect phase failure?","answer":"Yes, phase failure detection is built in, protecting the motor from single-phasing when one supply leg drops."},{"question":"Where can I buy 3RV1021-4AA15-ZX95?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-4AA15-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/3RV1021-4AA15-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}}