{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2431-4JA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2431-4JA10","canonicalUrl":"https://aoctrl.com/siemens/3RV2431-4JA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2431-4JA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2431-4JA10 circuit breaker for transformer protection, CLASS 10 trip, 30 kA interrupting capacity at 400 VAC, screw terminals, 55 mm wide.","salesMarkdown":"The Siemens 3RV2431-4JA10 is a SIRIUS-brand circuit breaker specifically designed for transformer protection. Interrupting capacity is 100 kA at 240 VAC and 30 kA at 400 VAC, per the datasheet. If one phase drops out, the breaker trips — a critical feature for transformer primary protection where single-phasing can overheat the remaining windings. No ground fault detection on this variant. Depth is 149 mm, height 140 mm. Mounting position is any orientation. That 50 mm vertical clearance is for arc-chamber venting — don't crowd it against cable ducts or panel walls. Main circuit terminals are screw-type, accepting 2× (1 to 35 mm²) or 1× (1 to 50 mm²) solid or stranded copper. Terminal screw size is M6. Strip length and torque values per the installation instructions — the 50 mm² single-conductor capacity is useful for feeding a transformer primary with a single large cable. ## Environmental and electrical ratings Rated operational voltage spans 20 to 690 V. Motor-switching capability at AC-3 duty is 15 operations per hour maximum. That's a switching rate, not a continuous current rating — the breaker is sized for transformer primary protection, not frequent motor starting. Power ratings at various voltages: 18.5 kW at 230 V, 25 hp at 220/230 V, 50 hp at 460/480 V, 60 hp at 575/600 V. Current ratings: 65 A at 480 V, 62 A at 600 V. Lifecycle status is listed as current production. This is an active catalog item in the SIRIUS range, not a phase-out or NRND part.","metaTitle":"Siemens 3RV2431-4JA10 SIRIUS Circuit Breaker, 30 kA at 400 V","metaDescription":"Siemens 3RV2431-4JA10 SIRIUS circuit breaker for transformer protection. CLASS 10 trip, 30 kA interrupting at 400 VAC. Phase failure detection. Screw terminals, DIN rail mount. Ava","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":"3RV2431-4JA10","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 54...65 A N-release 1040 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 ... 35 mm²), 1x (1 ... 50 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"18.5 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 transformer protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","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":"65 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":"26 W","at AC-3 at 400 V rated value":"65 A","at AC-3e rated value maximum":"690 V","Of Auxiliary Contacts Typical":"20 000","Substance Prohibitance (Date)":"03/01/2017","at AC-3e at 400 V rated value":"65 A","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"65 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":"8.7 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":"1 040 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":"54 ... 65 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2882ac62d591b2ccad4191f5f9c2999a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=477166&mlfb=3RV2431-4JA10"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3RV2431-4JA10 at 400 V?","answer":"30 kA at 400 VAC. At 240 VAC it is 100 kA. The 30 kA figure is the one to use for panel SCCR coordination at 400 V."},{"question":"What is the trip class of this circuit breaker?","answer":"CLASS 10. It trips within 10 seconds at 7.2× the thermal setting, designed for transformer inrush tolerance."},{"question":"What are the mounting dimensions for 3RV2431-4JA10?","answer":"Width 55 mm, height 140 mm, depth 149 mm. It snaps onto 35 mm DIN rail per DIN EN 60715. Clearance: 50 mm above and below, 10 mm to the side, zero forward or backward."},{"question":"Does 3RV2431-4JA10 have phase failure detection?","answer":"Yes, phase failure detection is built in. No ground fault detection on this variant."},{"question":"Where can I buy 3RV2431-4JA10 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2431-4JA10","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/3RV2431-4JA10 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}}