{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2031-4JA10-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2031-4JA10-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3RV2031-4JA10-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4JA10-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2031-4JA10-0BA0, Size S2 motor protection circuit breaker, screw-type terminals, Class 10 trip, 30 kA breaking capacity at 400 V AC, 55 mm wide.","salesMarkdown":"It combines a circuit breaker and overload relay in one device, saving panel space and wiring time over a separate breaker-plus-overload combination. At 230 V it's rated 100 kA, and at 690 V it still holds 4 kA — so it's suitable for 400 V lineups without worrying about upstream fuse coordination. Temperature compensation is active from -20 to +60 °C, keeping the thermal curve accurate across the panel's ambient range. Any mounting position is allowed, so it fits in tight enclosures or vertical bus risers. At 55 mm wide and 149 mm deep, the S2 frame takes up one standard 55 mm module on the rail. Clearance requirements are 50 mm above and below, 10 mm to the side — plan your gland plate and wireway accordingly. Main circuit terminals accept up to 2× 35 mm² or 1× 50 mm² solid/stranded copper. Use a Pozidriv size 2 bit with a 5–6 mm shaft diameter for the screw terminals — torque spec isn't listed here, but M6 studs on the main contacts suggest a standard 6–8 Nm range typical for this frame size. ## Backup fuse coordination When the available fault current exceeds the breaker's rated breaking capacity, you need backup fuses upstream. At 400 V, a gG 160 A fuse is required; at 500 V step down to gG 125 A, and at 690 V to gG 100 A. At 240 V no backup fuse is needed — the breaker's 100 kA rating covers virtually any service entrance.","metaTitle":"Siemens 3RV2031-4JA10-0BA0 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV2031-4JA10-0BA0 motor protection circuit breaker, size S2, 30 kA breaking capacity at 400 V AC, Class 10 trip. Active production. Quoted to order against RFQ.","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","Height":"140 mm","Upwards":"50 mm","at 240 V":"none required","at 400 V":"gG 160 A","at 500 V":"gG 125 A","at 690 V":"gG 100 A","Downwards":"50 mm","Trip Class":"CLASS 10","At The Side":"10 mm","Rated Value":"20 ... 690 V","During Storage":"-50 ... +80 °C","at AC-3 maximum":"15 1/h","lifecycle_stage":"current","During Operation":"-50 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting 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":"18.5 kW","at 240 V rated value":"25 kA","at 400 V rated value":"30 kA","at 500 V rated value":"4 kA","at 690 V rated value":"2 kA","Design Of The Product":"For motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"screw-type terminals","Temperature Compensation":"-20 ... +60 °C","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":"250","at AC in hot operating state":"26 W","at AC-3 at 400 V rated value":"65 A","Of Auxiliary Contacts Typical":"250","Substance Prohibitance (Date)":"04/10/2015","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"65 A","Design Of The Short-Circuit Trip":"magnetic","Between Main And Auxiliary Circuit":"400 V","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","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 (Switching Cycles) Typical":"250","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":"845 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"54 ... 65 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4ac59e9ee2ba9ac36caaae3b52a6bf06.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=576139&mlfb=3RV2031-4JA10-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4JA10-0BA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV2031-4JA10-0BA0 at 400 V?","answer":"30 kA at 400 V AC. At 230 V it's 100 kA, at 500 V it's 4 kA, and at 690 V it's 2 kA."},{"question":"What backup fuse is required for 3RV2031-4JA10-0BA0 at 400 V?","answer":"A gG 160 A fuse is required at 400 V. At 500 V use gG 125 A, at 690 V use gG 100 A. At 240 V no backup fuse is needed."},{"question":"Where can I buy 3RV2031-4JA10-0BA0 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 — no stock count or price is published here."},{"question":"Will 3RV2031-4JA10-0BA0 drop into a panel specified around 3RV2023-4DA10?","answer":"Both are SIRIUS size S2 breakers with the same 55 mm width and DIN-rail mounting, so the mechanical fit is identical. The electrical ratings differ — verify the 3RV2023-4DA10's trip class and breaking capacity against your motor's starting profile before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2031-4JA10-0BA0","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/3RV2031-4JA10-0BA0 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}}