{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-0JA10-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-0JA10-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-0JA10-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0JA10-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-0JA10-ZX95, 1 A rated continuous current, Class 10 trip, 100 kA breaking capacity at 400 V AC, screw terminals, 45 mm wide.","salesMarkdown":"Its 1 A continuous current rating paired with a Class 10 trip characteristic means it protects motors against overload and short-circuit, tripping fast enough to prevent thermal damage during a stalled-rotor start — the Class 10 curve clears within 10 seconds at 7.2× rated current, which is the standard for standard-duty induction motors driving pumps, fans, and conveyors. ## Breaking capacity and fault clearing Rated breaking capacity hits 100 kA across the board — at 240 V, 400 V, 500 V, and 690 V AC. For a 1 A motor protector, that is a very high interrupting rating, which simplifies coordination with upstream feeders. Width is 45 mm, depth 96 mm, height 97 mm — a compact three-pole footprint. Zero clearance needed at the back or sides, so it rows tightly on the rail without derating. Screw-type terminals on the main circuit accept 1…2.5 mm² solid or stranded (two conductors per clamp) or 2.5…6 mm² (two conductors). The 0 mm side clearance means you can pack breakers edge-to-edge in a multi-motor panel without worrying about heat buildup between units. Shock rated at 25 g for 11 ms, which covers most industrial vibration environments. Mechanical endurance is 100,000 operations on the main contacts, typical for a motor-starting duty cycle of 15 operations per hour at AC-3. ## Protection features and auxiliary contacts Ground fault detection is not included; that requires an external module. The breaker accepts auxiliary switches (sold separately) for remote status indication, but comes with zero factory-fitted auxiliary contacts.","metaTitle":"Siemens 3RV1021-0JA10-ZX95 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV1021-0JA10-ZX95 SIRIUS motor protection circuit breaker, 1 A continuous, Class 10 trip, 100 kA breaking capacity at 400 V AC. Active production, sourced to order. Reques","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","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":"0.25 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":"100 kA","at AC at 500 V rated value":"100 kA","at AC at 690 V rated value":"100 kA","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"100 000","at AC in hot operating state":"7.25 W","Continuous Current Rated Value":"1 A","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":"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","For Auxiliary And Control Current Circuit":"screw-type terminals","Removable Terminal For Auxiliary And Control Circuit":"No","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","Adjustable Pick-Up Value Current Of The Current-Dependent Overload Release":"0.7 ... 1 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=247551&mlfb=3RV1021-0JA10-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0JA10-ZX95/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV1021-0JA10-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 — submit an RFQ for a firm offer."},{"question":"What is the breaking capacity of 3RV1021-0JA10-ZX95?","answer":"100 kA at 240 V, 400 V, 500 V, and 690 V AC. That is a high interrupting rating for a 1 A motor protector, allowing it to clear faults on high-capacity supply transformers."},{"question":"Does 3RV1021-0JA10-ZX95 include phase failure protection?","answer":"Yes, phase failure detection is built in. Ground fault detection is not included and requires an external module."},{"question":"What wire sizes fit the terminals on 3RV1021-0JA10-ZX95?","answer":"Screw terminals accept 1…2.5 mm² solid or stranded (two conductors per clamp) or 2.5…6 mm² (two conductors). AWG equivalents are 14…10 for the smaller range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-0JA10-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/3RV1021-0JA10-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}}