{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-0GA10-0FJ0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-0GA10-0FJ0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-0GA10-0FJ0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0GA10-0FJ0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-0GA10-0FJ0-ZX95, 0.63 A, Class 10, 100 kA breaking capacity at 400 V AC, screw terminals, 45 mm wide, for 35 mm DIN rail.","salesMarkdown":"## What it is and what it does The Siemens SIRIUS 3RV1021-0GA10-0FJ0-ZX95 is a motor protection circuit breaker — the thing that sits between your contactor and the motor, watching for overload and short-circuit conditions. It's designed for a 0.63 A continuous load, which at 400 V AC-3 duty works out to about 0.18 kW motor protection. The Class 10 trip curve means it will hold through a normal start but trip fast enough to protect the motor windings if the rotor locks. Phase failure detection is built in, so a lost phase won't cook the motor while it single-phases. ## Breaking capacity and coordination The 100 kA breaking capacity at 400 V AC is the headline number here — that's the fault current this breaker can interrupt without welding its contacts or venting plasma. It's rated for 100 kA all the way up to 690 V, which means it can sit downstream of a large transformer without needing a current-limiting fuse upstream for SCCR compliance. The 6 000 V surge voltage rating (impulse withstand) tells you it's built for industrial environments where switching transients are the norm, not the exception. ## Mounting and wiring Snaps onto 35 mm DIN rail per EN 50022, or screws directly to a backplate. At 45 mm wide and 96 mm deep, it's a standard 2-module footprint — no surprises in the panel layout. The screw terminals on the main circuit accept solid or stranded conductors: 2x 1 to 2.5 mm² or 2x 2.5 to 6 mm², with AWG equivalents 14 to 10. That's enough cross-section for the 0.63 A rating plus some margin for voltage drop on longer runs. IP20 on the front face means it's protected against finger contact but not washdown — keep it inside the enclosure.","metaTitle":"Siemens 3RV1021-0GA10-0FJ0-ZX95 SIRIUS Motor Protection Circ","metaDescription":"Siemens SIRIUS 3RV1021-0GA10-0FJ0-ZX95 motor protection circuit breaker, 0.63 A continuous, Class 10 trip, 100 kA breaking at 400 V, phase failure detection, current lifecycle. Ava","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":"0.18 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":"0.63 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":"0.45 ... 0.63 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=273797&mlfb=3RV1021-0GA10-0FJ0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0GA10-0FJ0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV1021-0GA10-0FJ0-ZX95 and get pricing?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"Will 3RV1021-0GA10-0FJ0-ZX95 drop into a panel specified around 3RV1011-0GA10?","answer":"The 3RV1021 frame is physically larger (45 mm wide vs the 3RV1011's 45 mm — same width, but check depth and terminal layout against your panel's wireway clearance). The 0.63 A rating and Class 10 trip are the same, but the 3RV1021 carries a 100 kA breaking capacity at 400 V versus the 3RV1011's lower rating, so it's a functional upgrade. Verify the DIN rail clip position and any auxiliary switch mounting before assuming a drop-in swap."},{"question":"What compliance documentation does Siemens provide for this circuit breaker?","answer":"As a SIRIUS motor protection circuit breaker, it carries IEC/EN 60947-2 and 60947-4-1 certifications. RoHS and REACH declarations are standard from Siemens. UL/CSA listings are typically available for the base 3RV1021 platform — confirm the specific suffix (-0FJ0-ZX95) with your Siemens rep for exact agency file numbers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-0GA10-0FJ0-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/3RV1021-0GA10-0FJ0-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}}