{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1031-4FA15-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1031-4FA15-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RV1031-4FA15-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4FA15-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1031-4FA15-ZX95, 40 A continuous, CLASS 10 trip, 50 kA breaking capacity at 400 V AC, screw terminals, snap-on DIN rail.","salesMarkdown":"It provides overload and short-circuit protection for motors up to 18.5 kW at 400 V AC, with a continuous current rating of 40 A and a CLASS 10 trip characteristic — meaning it will trip within 10 seconds at 7.2× rated current, which is the standard for protecting standard induction motors during start-up. Rated breaking capacity varies with supply voltage: 100 kA at 240 V AC, 50 kA at 400 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC. Any mounting position is permitted. Dimensions: 55 mm wide, 140 mm high, 149 mm deep. The 149 mm depth is the full body depth including terminals — check clearance behind the panel door if using a shallow enclosure. IP20 on the front (finger-safe), so it suits enclosed panel installation, not washdown environments. ## Auxiliary and control circuit ratings The auxiliary switch (transverse design, field-installable) is rated 1 A at 24 V, 0.5 A at 230 V, and 0.15 A at 60 V. These are the maximum switching currents for the auxiliary contacts — useful for feeding a PLC input or a status lamp. The main circuit uses screw-type box terminals accepting 2x (0.75 … 25 mm²) stranded or 1x (0.75 … 35 mm²) stranded; the auxiliary circuit uses separate screw terminals accepting 2x (0.5 … 1.5 mm²) solid or 2x (0.75 … 2.5 mm²) solid. ## Sourcing posture","metaTitle":"Siemens 3RV1031-4FA15-ZX95 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV1031-4FA15-ZX95 SIRIUS motor protection circuit breaker, 40 A continuous, CLASS 10 trip, 50 kA at 400 V AC. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"149 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"55 mm","Height":"140 mm","at 24 V":"1 A","at 60 V":"0.15 A","Stranded":"2x (0.75 ... 25 mm²), 1x (0.75 … 35 mm²)","at 230 V":"0.5 A","Backwards":"0 mm","Trip Class":"CLASS 10","At The Side":"0 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Shock Resistance":"25g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"circuit breaker","at 400 V rated value":"18.5 kW","Design Of The Product":"for motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"screw-type terminals with box terminals","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"50 kA","at AC at 500 V rated value":"10 kA","at AC at 690 V rated value":"4 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"29 W","Substance Prohibitance (Date)":"07/01/2006","Continuous Current Rated Value":"40 A","Design Of The Auxiliary Switch":"transverse","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 2)","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 000 V","at AWG cables for auxiliary contacts":"2x (18 ... 14)","at AC in hot operating state per pole":"9.7 W","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","operational current at AC-3 at 400 V rated value":"40 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Design Of The Overcurrent Release And Short-Circuit Release":"thermomagnetic","Arrangement Of Electrical Connectors For Main Current Circuit":"front side","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Switching Cycles) Of The Main Contacts Typical":"50 000","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"28 ... 40 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=152869&mlfb=3RV1031-4FA15-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4FA15-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1031-4FA15-ZX95 at 400 V?","answer":"50 kA at 400 V AC, which is the standard rating for European 400 V three-phase systems."},{"question":"Does 3RV1031-4FA15-ZX95 include phase failure detection?","answer":"Yes, phase failure detection is built in — the breaker trips if one phase is lost."},{"question":"How do I get current pricing and availability for 3RV1031-4FA15-ZX95?","answer":"Submit an RFQ — the part is sourced to order through independent distribution, and pricing and availability are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1031-4FA15-ZX95","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/3RV1031-4FA15-ZX95 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}}