{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2031-4XB15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2031-4XB15","canonicalUrl":"https://aoctrl.com/siemens/3RV2031-4XB15","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4XB15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV2031-4XB15, CLASS 20, 30 kA at 400 V, 55 mm width, screw and snap-on 35 mm DIN rail mounting.","salesMarkdown":"Rated operating voltage spans 20 to 690 V, and the breaker carries a CLASS 20 trip characteristic — meaning it allows a 20-second overload before tripping, which matches standard NEMA and IEC motor starting profiles for medium-inertia loads like pumps and compressors. Breaking capacity at 400 V is 30 kA, sufficient for most industrial distribution panels with typical transformer sizes up to 1.6 MVA; at 690 V it still interrupts 2 kA, covering high-voltage motor circuits in European 690 V networks. Width is 55 mm, depth 149 mm, height 140 mm. The 55 mm width occupies three standard 18 mm DIN-rail module spaces, so plan for three slots in your enclosure layout.","metaTitle":"Siemens 3RV2031-4XB15 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV2031-4XB15 SIRIUS motor protection circuit breaker, CLASS 20 trip, 30 kA breaking capacity at 400 V, 55 mm wide, DIN rail mount. Current production. Quoted to order agai","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 24 V":"1 A","at 60 V":"0.15 A","at 110 V":"0 A","at 125 V":"0 A","at 220 V":"0 A","at 230 V":"0.5 A","at 240 V":"none required","at 400 V":"160","at 500 V":"125","at 690 V":"100","Downwards":"50 mm","Trip Class":"CLASS 20","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","at AC-3e maximum":"15 1/h","For Main Contacts":"M6","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"10 hp","at 240 V rated value":"100 kA","at 400 V rated value":"30 kA","at 480 V rated value":"59 A","at 500 V rated value":"4 kA","at 600 V rated value":"59 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":"5 hp","at 220/230 V rated value":"20 hp","at 460/480 V rated value":"40 hp","at 575/600 V rated value":"50 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":"59 A","at AC-3e rated value maximum":"690 V","Of Auxiliary Contacts Typical":"20 000","Substance Prohibitance (Date)":"04/10/2015","at AC-3e at 400 V rated value":"59 A","Design Of The Auxiliary Switch":"transverse","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"59 A","Design Of The Short-Circuit Trip":"magnetic","for AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","Display Version For Switching Status":"Handle","Surge Voltage Resistance Rated Value":"6 kV","Of The Auxiliary And Control Contacts":"M3","at AC in hot operating state per pole":"8.7 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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 (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"25g / 11 ms Sinus","Electrical Endurance (Operating Cycles) Typical":"20 000","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","Size Of Contactor Can Be Combined Company-Specific":"S2","contact rating of auxiliary contacts according to UL":"C300 / R300","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 10 A, miniature circuit breaker C 6 A (short-circuit current Ik < 400 A)","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"845 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":"49 ... 59 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=724358&mlfb=3RV2031-4XB15","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4XB15/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV2031-4XB15 at 400 V?","answer":"The breaking capacity at 400 V rated value is 30 kA, which covers most industrial distribution panels up to 1.6 MVA transformer capacity."},{"question":"Will 3RV2031-4XB15 drop into a panel specified around 3RV2021-4NA25 without rewiring?","answer":"The 3RV2031-4XB15 is 55 mm wide versus the 3RV2021-4NA25's 45 mm width, so it will not fit the same DIN-rail slot without moving adjacent devices. Terminal sizes and screw torque specs differ — verify the main contact terminal accepts M6 ring lugs (the 3RV2031-4XB15 uses M6 for main contacts)."},{"question":"Where can I buy 3RV2031-4XB15 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead-time commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2031-4XB15","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/3RV2031-4XB15 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}}