{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-0EA10-0FJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-0EA10-0FJ0","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-0EA10-0FJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0EA10-0FJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-0EA10-0FJ0, 0.4 A continuous current, CLASS 10 trip class, 100 kA breaking capacity at 400 V AC, 45 mm wide, screw and snap-on DIN rail mounting.","salesMarkdown":"No ground-fault detection on this variant, so if you need that, look at the GF versions in the same family. Width is 45 mm, depth 96 mm, height 97 mm. Backwards clearance is 0 mm and side clearance is 0 mm, so it can butt directly against other devices on the rail — no air gap needed for cooling or arc containment. That's a space saver in tight enclosures. ## Termination and wiring Main circuit terminals are screw-type, accepting solid or stranded conductors: 2x 1…2.5 mm² and 2x 2.5…6 mm². For AWG, that's 2x 14…10. Finely stranded with ferrule is the same range. The auxiliary switch is present — it's integrated, so you don't need a separate side-mount block for status feedback. No additional auxiliary contacts are included, but the built-in switch covers the basic NO/NC for the control circuit. ## Environmental and mechanical limits Shock resistance is 25 g for 11 ms — tough enough for machinery-mounted panels. Front face is IP20 — finger-safe but not sealed; install inside a cabinet rated for the environment.","metaTitle":"Siemens 3RV1021-0EA10-0FJ0 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV1021-0EA10-0FJ0 SIRIUS motor protection circuit breaker, 0.4 A continuous, CLASS 10 trip, 100 kA breaking at 400 V, 45 mm wide, screw and snap-on DIN rail, current produ","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":"0.09 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":"5.5 W","Continuous current rated value":"0.4 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":"1.8 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":"0.28 ... 0.4 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=450119&mlfb=3RV1021-0EA10-0FJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0EA10-0FJ0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV1021-0EA10-0FJ0 and how do I get a price?","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 price and lead time."},{"question":"What is 3RV1021-0EA10-0FJ0's listed depth?","answer":"The depth is 96 mm. Combined with the 45 mm width and 97 mm height, it fits a standard 45 mm-wide DIN-rail slot."},{"question":"What conductor sizes does the 3RV1021-0EA10-0FJ0 accept?","answer":"Solid and stranded conductors: 2x 1…2.5 mm² and 2x 2.5…6 mm². For AWG, the main contacts accept 2x 14…10. Finely stranded with ferrule uses the same range."},{"question":"Will 3RV1021-0EA10-0FJ0 drop into a panel specified around 3RV1011-0GA10 without rewiring?","answer":"Both share the same 45 mm width and DIN-rail mounting, so the footprint and rail clip are identical. However, the 3RV1021-0EA10-0FJ0 has a continuous current rating of 0.4 A — verify that the motor FLA matches before substituting, because the 3RV1011-0GA10 may have a different rating. Terminal wire ranges are the same."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-0EA10-0FJ0","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/3RV1021-0EA10-0FJ0 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}}