{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-1GA38-1KT1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-1GA38-1KT1","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-1GA38-1KT1","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1GA38-1KT1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-1GA38-1KT1, 6.3 A continuous, CLASS 10 trip, 100 kA breaking at 400 V, screw/snap-on DIN rail.","salesMarkdown":"## Motor protection circuit breaker – 6.3 A, CLASS 10, 100 kA The Siemens SIRIUS 3RV1021-1GA38-1KT1 is a motor protection circuit breaker rated for 6.3 A continuous current, with a CLASS 10 trip characteristic that clears overloads fast enough to protect standard induction motors during start-up (cites:,). Its breaking capacity hits 100 kA at 240 V, 400 V, and 500 V AC, dropping to 6 kA at 690 V AC — so on a 400 V line it interrupts fault currents up to 100 kA without cascading upstream (cites:,). Mounts on 35 mm DIN rail per EN 50022 via screw or snap-on; the 45 mm width and 96 mm depth fit standard panel layouts (cites:,). Rated IP20 on the front — suitable for enclosed panel use where no washdown or dust ingress is expected (cites:). Operates from -20 to +60 °C; stores and transports from -50 to +80 °C (cites:,).","metaTitle":"Siemens 3RV1021-1GA38-1KT1 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV1021-1GA38-1KT1 SIRIUS motor protection circuit breaker, 6.3 A continuous, CLASS 10 trip, 100 kA breaking at 400 V. Current lifecycle. Quoted to order.","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 (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"97 mm","Maximum":"2 000 m","at 24 V":"1 A","at 60 V":"0.15 A","at 230 V":"0.5 A","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":"2.2 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":"6 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":"6.3 A","Design of the auxiliary switch":"transverse","at AWG conductors for main contacts":"2x (24 ... 14)","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 (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","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":"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=204002&mlfb=3RV1021-1GA38-1KT1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1GA38-1KT1/alternatives.json"},"ai":{"faq":[{"question":"Will 3RV1021-1GA38-1KT1 drop into a panel specified around 3RV2021-1FA15 without rewiring?","answer":"Both mount on 35 mm DIN rail per EN 50022 and share the same 45 mm width, so the mechanical fit is identical — but verify the terminal ratings and auxiliary contact configuration because the 3RV1021-1GA38-1KT1 uses screw terminals for the main circuit and has a transverse auxiliary switch design (cites:,)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-1GA38-1KT1","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/3RV1021-1GA38-1KT1 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}}