{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2431-4EA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2431-4EA10","canonicalUrl":"https://aoctrl.com/siemens/3RV2431-4EA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2431-4EA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2431-4EA10 circuit breaker, transformer protection design, Trip Class 10, 30 kA at 400 V, screw-type terminals, DIN rail mount.","salesMarkdown":"## Transformer Protection Circuit Breaker — SIRIUS 3RV2431-4EA10 Built-in phase failure detection ensures the breaker trips on loss of any phase, protecting three-phase transformers from single-phasing damage. Dimensions of 55 mm width, 140 mm height, and 149 mm depth mean it occupies a standard three-module footprint on the rail; clearance requirements of 50 mm upward and downward, 10 mm to the side should be factored into gland-plate and busbar planning. Screw-type terminals on the main current circuit accept 2x (1–25 mm²) or 1x (1–35 mm²) solid or stranded copper, with M6 bolt size for the main contacts — no special crimp tooling needed for field replacement. ## Environmental and Operating Range Rated switching frequency at AC-3 and AC-3e duty is 15 cycles per hour maximum, which suits transformer primary switching rather than high-cycle motor starting.","metaTitle":"Siemens 3RV2431-4EA10 SIRIUS Circuit Breaker, Transformer Pr","metaDescription":"Siemens 3RV2431-4EA10 SIRIUS circuit breaker for transformer protection. Trip Class 10, 30 kA at 400 V, phase failure detection. DIN rail mount. Available 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":"3RV2431-4EA10","Height":"140 mm","Upwards":"50 mm","Forwards":"0 mm","Backwards":"0 mm","Downwards":"50 mm","Trip Class":"CLASS 10","At The Side":"10 mm","Rated Value":"20 ... 690 V","description":"circuit breaker size S2 for transformer protection A-release 22...32 A short-circuit release 656 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","at AC-3e maximum":"15 1/h","For Main Contacts":"M6","Mounting Position":"any","Solid Or Stranded":"2x (1 ... 25 mm²), 1x (1 ... 35 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"5 hp","at 240 V rated value":"100 kA","at 400 V rated value":"30 kA","at 480 V rated value":"32 A","at 500 V rated value":"5 kA","at 600 V rated value":"32 A","at 690 V rated value":"2 kA","Design Of The Product":"For transformer protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"3 hp","at 200/208 V rated value":"10 hp","at 220/230 V rated value":"10 hp","at 460/480 V rated value":"25 hp","at 575/600 V rated value":"30 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":"10 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":"50 000","at AC in hot operating state":"18 W","at AC-3 at 400 V rated value":"32 A","at AC-3e rated value maximum":"690 V","Of Auxiliary Contacts Typical":"50 000","Substance Prohibitance (Date)":"10/15/2014","at AC-3e at 400 V rated value":"32 A","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"32 A","at AWG cables for main contacts":"2x (18 ... 3), 1x (18 ... 2)","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":"6 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 ... 16 mm²), 1x (1 ... 25 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":"50 000","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":"656 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"22 ... 32 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/61820298ca4f6e6ebfcd8711629dce10.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=412779&mlfb=3RV2431-4EA10"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RV2431-4EA10?","answer":"The 3RV2023-4DA10 is a SIRIUS circuit breaker in the same family, but it is designed for motor protection rather than transformer protection — verify the trip curve and fault current ratings before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2431-4EA10","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/3RV2431-4EA10 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}}