{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-0JA10-0FJ0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-0JA10-0FJ0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-0JA10-0FJ0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0JA10-0FJ0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-0JA10-0FJ0-ZX95, 1 A rated continuous current, CLASS 10 trip class, 100 kA breaking capacity at 400 V AC, screw-type terminals, snap-on mounting.","salesMarkdown":"## Motor protection circuit breaker, 1 A, CLASS 10 — SIRIUS 3RV1021 It carries a rated continuous current of 1 A and a CLASS 10 trip characteristic, meaning it will trip within 10 seconds at 7.2× the current setting — fast enough to protect standard induction motors during locked-rotor conditions without nuisance tripping on normal starts. Ground fault detection is not included — that requires an external module or a separate ground-fault relay. Any mounting position is allowed, so vertical or horizontal rail orientation is fine. Dimensions: 45 mm wide × 97 mm high × 96 mm deep. Front face is IP20 — finger-safe but not washdown-rated. Suitable for enclosed panels only; not for outdoor or wet-area mounting without an additional enclosure. Main circuit terminals are screw-type. Accepts solid or stranded conductors: 2× (1 … 2.5 mm²) or 2× (2.5 … 6 mm²) per terminal. AWG equivalents: 2× (14 … 10). Finely stranded conductors with core-end processing are also supported. No auxiliary contacts are included on this variant — an auxiliary switch block can be added if needed. ## Environmental and endurance ratings Maximum operating altitude: 2,000 m. Shock resistance: 25 g / 11 ms. Mechanical endurance of main contacts: 100,000 operations typical. This matters for thermal management inside a sealed enclosure — account for the heat when sizing ventilation or cooling. Surge voltage resistance rated at 6,000 V — consistent with IEC 60947-2 overvoltage category III for industrial panels. For volume purchases or BOM-line commitments, submit an RFQ with target quantity and delivery window.","metaTitle":"Siemens 3RV1021-0JA10-0FJ0-ZX95 SIRIUS Motor Protection Circ","metaDescription":"Siemens 3RV1021-0JA10-0FJ0-ZX95 SIRIUS motor protection circuit breaker, 1 A continuous current, CLASS 10 trip, 100 kA breaking capacity at 400 V AC. Available to order. Request a","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","Maximum":"2 000 m","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","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=261198&mlfb=3RV1021-0JA10-0FJ0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0JA10-0FJ0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1021-0JA10-0FJ0-ZX95?","answer":"Breaking capacity is 100 kA at 240 V, 400 V, 500 V, and 690 V AC — full rated capacity across the voltage range, so no derating needed at higher voltages."},{"question":"What is the trip class of this circuit breaker?","answer":"Trip class is CLASS 10 — it will trip within 10 seconds at 7.2× the current setting, suitable for standard induction motor starting."},{"question":"Does this breaker include phase failure protection?","answer":"Yes, phase failure detection is built in. Ground fault detection is not included."},{"question":"Where can I buy 3RV1021-0JA10-0FJ0-ZX95 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ with your target quantity and delivery window for availability and current pricing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-0JA10-0FJ0-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/3RV1021-0JA10-0FJ0-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}}