{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2031-4RA10-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2031-4RA10-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RV2031-4RA10-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4RA10-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2031-4RA10-ZX95 motor protection circuit breaker, Class 10 trip, 65 kA at 240 V, 30 kA at 400 V, screw and snap-on 35 mm DIN rail mount.","salesMarkdown":"## What this breaker does in the nacelle It's Class 10 trip, which means it will clear a stalled-rotor condition fast enough to protect a standard induction motor winding before the heat soak damages the copper. That 65 kA interrupting rating at 240 V and 30 kA at 400 V tells you it can handle a hard bolted fault on a 480 V distribution bus without the upstream breaker needing to coordinate. The 55 mm width and 149 mm depth fit a standard SIRIUS 3RV2 panel footprint — no surprises on the DIN rail. ## Mounting and environment — built for the cabinet, not the bench Mounting position any, so you can lay this in a vertical or horizontal bus without worrying about the bimetal strip orientation. That -20 °C floor matters if the panel sits in an unheated turbine nacelle or a cold warehouse. The M6 main contact terminals accept 2x 1–35 mm² or 1x 1–50 mm² solid or stranded — screw-type terminals, so you need a torque driver, not a spring-cage tool. Rated operating voltage 20–690 V. The 15 hp at 230 V, 30 hp at 220/230 V, 60 hp at 460/480 V — these are the NEMA horsepower ratings for the motor it protects. The interrupting ratings at 500 V (5 kA,) and 690 V (2 kA,) drop off because the arc extinction gets harder at higher voltage. At 240 V no external fuse is required; at 400 V the breaker coordinates with a 160 A upstream fuse, at 500 V a 125 A fuse, at 690 V a 100 A fuse. That coordination data saves you the selectivity study time.","metaTitle":"Siemens 3RV2031-4RA10-ZX95 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV2031-4RA10-ZX95 motor protection circuit breaker. Class 10 trip, 65 kA at 240 V, 30 kA at 400 V. DIN rail mount, -20 to +60 °C. Active production. Quoted to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"149 mm","Width":"55 mm","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","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":"-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":"15 hp","at 240 V rated value":"65 kA","at 400 V rated value":"30 kA","at 480 V rated value":"77 A","at 500 V rated value":"5 kA","at 600 V rated value":"77 A","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","at 110/120 V rated value":"7.5 hp","at 200/208 V rated value":"25 hp","at 220/230 V rated value":"30 hp","at 460/480 V rated value":"60 hp","at 575/600 V rated value":"75 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":"29.5 W","at AC-3 at 400 V rated value":"80 A","Of Auxiliary Contacts Typical":"20 000","Substance Prohibitance (Date)":"04/10/2015","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"80 A","Design Of The Short-Circuit Trip":"magnetic","for AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","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 %","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":"70 ... 80 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=286179&mlfb=3RV2031-4RA10-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4RA10-ZX95/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for 3RV2031-4RA10-ZX95?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Current pricing and availability are confirmed at quote time."},{"question":"What is the depth of 3RV2031-4RA10-ZX95?","answer":"The depth is 149 mm. The width is 55 mm and height is 140 mm."},{"question":"Will 3RV2031-4RA10-ZX95 drop into a panel designed for 3RV1011-1HA10?","answer":"No. The 3RV2031 is 55 mm wide compared to the 3RV10's 45 mm frame, so it will not fit the same DIN rail slot without a panel layout change and rewiring."},{"question":"What is the interrupting rating of 3RV2031-4RA10-ZX95 at 400 V?","answer":"30 kA at 400 V. At 240 V it is 65 kA, at 500 V it is 5 kA, and at 690 V it is 2 kA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2031-4RA10-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/3RV2031-4RA10-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}}