{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2331-4KC10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2331-4KC10","canonicalUrl":"https://aoctrl.com/siemens/3RV2331-4KC10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2331-4KC10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS circuit breaker for starter combinations, 3RV2331-4KC10, 30 kA breaking capacity at 400 V, 22 kW at 230 V, screw-type terminals, DIN rail mount.","salesMarkdown":"## What it is and where it fits The Siemens 3RV2331-4KC10 is a SIRIUS circuit breaker designed specifically for starter combinations — meaning it integrates directly into a motor starter assembly, combining short-circuit and overload protection in one device. It mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715, so it lands in any standard control panel without extra bracketry. ## Key ratings — what they mean for your panel Rated breaking capacity at 400 V is 30 kA — that's the fault current it can safely interrupt without welding contacts or cascading damage upstream. For a 480 V system the breaking capacity is 65 A (not kA — that's the continuous current rating at that voltage), so at higher voltages the part carries less continuous load. Motor power rating at 230 V is 22 kW, at 460/480 V it's 50 hp, at 575/600 V it's 60 hp — match these to your motor nameplate, not the line voltage alone. ## Clearances and integration Clearance distances are tight: 50 mm upwards and downwards, 10 mm sideways, zero forwards and backwards. That means you can pack breakers side-by-side on the DIN rail with only 10 mm between units, but leave 50 mm above and below for arc venting and cable bend radius. Terminal capacity accepts 2x 1–35 mm² or 1x 1–50 mm² solid/stranded — sized for motor feeder cables up to 50 mm².","metaTitle":"Siemens 3RV2331-4KC10 SIRIUS Circuit Breaker, 30 kA at 400 V","metaDescription":"Siemens 3RV2331-4KC10 SIRIUS circuit breaker for starter combinations. 30 kA breaking capacity at 400 V, 22 kW at 230 V. DIN rail mount. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"149 mm","Width":"55 mm","title":"3RV2331-4KC10","Height":"140 mm","Upwards":"50 mm","Forwards":"0 mm","at 240 V":"none required","at 400 V":"160","at 500 V":"125","at 690 V":"100","Backwards":"0 mm","Downwards":"50 mm","At The Side":"10 mm","Rated Value":"20 ... 690 V","description":"Circuit breaker size S2 for starter combination Rated current 73 A N-release 949 A screw terminal Standard switching capacity","During Storage":"-50 ... +80 °C","at AC-3 maximum":"15 1/h","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 60715","For Main Contacts":"M6","Mounting Position":"any","Solid Or Stranded":"2x (1 ... 35 mm²), 1x (1 ... 50 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"22 kW","at 240 V rated value":"100 kA","at 400 V rated value":"30 kA","at 480 V rated value":"65 A","at 500 V rated value":"5 kA","at 600 V rated value":"62 A","at 690 V rated value":"2 kA","Design Of The Product":"For starter combinations","Ground Fault Detection":"No","Phase Failure Detection":"No","For Main Current Circuit":"screw-type terminals","at 200/208 V rated value":"20 hp","at 220/230 V rated value":"25 hp","at 460/480 V rated value":"50 hp","at 575/600 V rated value":"60 hp","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"65 kA","at AC at 500 V rated value":"8 kA","at AC at 690 V rated value":"4 kA","Design Of Screwdriver Shaft":"Diameter 5 to 6 mm","Size Of The Circuit-Breaker":"S2","Size Of The Screwdriver Tip":"Pozidriv size 2","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"20 000","at AC in hot operating state":"29.5 W","at AC-3 at 400 V rated value":"73 A","Of Auxiliary Contacts Typical":"20 000","Substance Prohibitance (Date)":"03/01/2017","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"73 A","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","Design Of The Short-Circuit Trip":"magnetic","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","Display Version For Switching Status":"Handle","Surge Voltage Resistance Rated Value":"6 kV","at AC in hot operating state per pole":"9.8 W","With Side-By-Side Mounting At The Side":"0 mm","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (1 ... 25 mm²), 1x (1 ... 35 mm²)","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","with low demand rate according to SN 31920":"50 FIT","For Main Contacts With Screw-Type Terminals":"3 ... 4.5 N·m","with high demand rate according to SN 31920":"50 %","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","shock resistance according to IEC 60068-2-27":"25g / 11 ms Sinus","Electrical Endurance (Operating Cycles) Typical":"20 000","Size Of Contactor Can Be Combined Company-Specific":"S2","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"949 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$127.56","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/66a630658f4604fd4044f4dd96c5028c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=526&mlfb=3RV2331-4KC10"},"ai":{"faq":[{"question":"Where can I buy 3RV2331-4KC10 and how do I get a price?","answer":"The part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"What is 3RV2331-4KC10's listed depth (149 mm) on this component line?","answer":"The listed depth is 149 mm. Width is 55 mm, height is 140 mm — fits a standard 55 mm wide DIN-rail footprint."},{"question":"Will 3RV2331-4KC10 drop into a panel that was specified around 3RV2023-4DA10 without rewiring?","answer":"Both are SIRIUS circuit breakers on the same 35 mm DIN-rail footprint, but the 3RV2331 series is physically larger (149 mm deep vs the 3RV2023's smaller frame). Check the panel depth clearance — if the enclosure has 150 mm+ internal depth, it will fit without rewiring the DIN rail. Terminal type and wire range may differ; verify the lug arrangement before committing."},{"question":"What compliance documentation does this brand provide for 3RV2331-4KC10 (RoHS, REACH, UL, IEC)?","answer":"As a Siemens SIRIUS product, the 3RV2331-4KC10 carries CE marking for the European market and is designed to IEC/EN 60947 standards. RoHS and REACH declarations are available from Siemens on request. UL/CSA listings are typical for this series but should be confirmed against the specific catalog number for your jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2331-4KC10","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/3RV2331-4KC10 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}