{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-1GA15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-1GA15","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-1GA15","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1GA15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1021-1GA15 motor protection circuit breaker, 6.3 A continuous rated current, Class 10 trip class, 100 kA breaking capacity at 400 V AC, screw-type terminals, 45 mm width.","salesMarkdown":"## Motor Protection Circuit Breaker for 6.3 A Loads — SIRIUS 3RV1021-1GA15 The Class 10 trip characteristic allows motor inrush without tripping. Rated breaking capacity hits 100 kA at 400 V AC and 500 V AC, dropping to 6 kA at 690 V AC. The 6 kA at 690 V still covers the majority of industrial motor branch circuits at that voltage level. Ground fault detection is not included, so a separate ground-fault relay or RCD is needed if that protection is required. Width is 45 mm, depth 96 mm, height 97 mm. ## Integration — Terminal Details and Panel Fit Screw-type terminals on both the main current circuit and the auxiliary/control circuit. Solid conductor capacity: 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). No backwards or side clearance needed — zero mm on both — which simplifies panel layout when mounting multiple units side by side. Auxiliary switch is transverse design and the product extension for an auxiliary switch is supported, so you can add a signal contact for remote status indication without replacing the breaker. In a dense panel with multiple breakers, that heat adds up — factor it into your enclosure thermal calculation rather than assuming zero dissipation from a protective device. ## Delta — How This Sits Against the 3RV2021-1FA15 The 3RV2021-1FA15 is the closest functional peer in the SIRUS series — same form factor, same DIN rail mounting, same screw terminal architecture. The deciding difference is the continuous current rating: the 3RV1021-1GA15 is set for 6.3 A, while the 3RV2021-1FA15 covers a different current range. If your BOM specifies 6.3 A motor protection, the 3RV1021-1GA15 is the correct fit; the 3RV2021-1FA15 would require a different setting range and may not coordinate with the same upstream protective device. Panel cutout and wiring footprint are identical, so a swap is mechanically possible but electrically wrong unless the motor FLA matches the alternate's range.","metaTitle":"Siemens 3RV1021-1GA15 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV1021-1GA15 SIRIUS motor protection circuit breaker, 6.3 A continuous, Class 10 trip, 100 kA breaking at 400 V AC. Active production. Screw terminals, DIN rail mount. Sou","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","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","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022","Shock Resistance":"25g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"circuit breaker","at 400 V rated value":"2.2 kW","Design Of The Product":"for motor protection","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":"6 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"7.25 W","Substance Prohibitance (Date)":"05/01/2012","Continuous Current Rated Value":"6.3 A","Design Of The Auxiliary Switch":"transverse","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 000 V","at AC in hot operating state per pole":"2.4 W","for AWG cables for auxiliary contacts":"2x (18 ... 14)","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","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","operational current at AC-3 at 400 V rated value":"6.3 A","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","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Operating Cycles) Of The Main Contacts Typical":"100 000","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"4.5 ... 6.3 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=293944&mlfb=3RV1021-1GA15","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1GA15/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RV1021-1GA15?","answer":"The 3RV2021-1FA15 is the closest peer in the SIRIUS series with the same mechanical footprint and terminal layout. The critical difference is the current rating — the 3RV1021-1GA15 is set for 6.3 A continuous, while the 3RV2021-1FA15 covers a different range. Verify motor FLA before substituting."},{"question":"What compliance documentation does this brand provide for 3RV1021-1GA15?","answer":"The part carries a RoHS substance prohibition date of 05/01/2012, indicating compliance with RoHS directives. Standard Siemens documentation includes the declaration of conformity and CE marking. Specific UL or IEC certification details should be verified from the manufacturer's certificate database using the order code."},{"question":"What is 3RV1021-1GA15's listed depth?","answer":"The depth is 96 mm, with a width of 45 mm and height of 97 mm. No backwards or side clearance is required for installation."},{"question":"What wire sizes does the 3RV1021-1GA15 accept?","answer":"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). Terminals are screw-type for both main and auxiliary circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-1GA15","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/3RV1021-1GA15 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}}