{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2031-4XB10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2031-4XB10","canonicalUrl":"https://aoctrl.com/siemens/3RV2031-4XB10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4XB10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2031-4XB10 motor protection circuit breaker, 30 kA breaking capacity at 400 V, Trip Class 20, screw and snap-on DIN rail mount, 149 x 55 x 140 mm.","salesMarkdown":"The 55 mm width and 149 mm depth keep the footprint manageable for dense panel layouts. Rated for motor protection duty, it includes phase failure detection — if one phase drops out, the breaker trips before the motor single-phases and burns up. No ground fault detection here, so this is a straightforward motor branch protector, not a combined GFCI. The Trip Class 20 means it allows a 20-second overload before tripping at 7.2× rated current. That's standard for general-purpose induction motors starting conveyors, pumps, and fans — enough inrush time without nuisance trips on normal starts. At 400 V the 3RV2031-4XB10 interrupts 30 kA symmetrical. On a 480 V system it still carries 59 A continuous and holds a 30 kA interrupt rating at 400 V — check your available fault current against the 30 kA ceiling. The motor switching frequency is limited to 15 operations per hour at AC-3 duty. That is fine for a pump or fan that starts a few times an hour, but not for a jogging application or a reversing drive that cycles every minute. ## Mounting and wiring in the field The snap-on feature means you can clip it onto the rail without tools — useful when retrofitting in a live panel where you want to minimise time with the screwdriver. Screw terminals on the main circuit accept 2× 1–35 mm² or 1× 1–50 mm² solid or stranded wire. M6 terminal screws on the main contacts handle the torque for higher-current connections. That is tight enough for most enclosures — the side gap is the limiting factor if you are packing multiple breakers side by side.","metaTitle":"Siemens 3RV2031-4XB10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV2031-4XB10 SIRIUS motor protection circuit breaker. Trip Class 20, 30 kA breaking capacity at 400 V, phase failure detection. Screw and snap-on DIN rail mount. Available","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":"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 standard mounting 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":"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 Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"59 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 %","shock resistance according to IEC 60068-2-27":"25g / 11 ms Sinus","Electrical Endurance (Switching 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":"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=230539&mlfb=3RV2031-4XB10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4XB10/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV2031-4XB10 and what is the lead time?","answer":"The 3RV2031-4XB10 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for the most accurate lead time and price."},{"question":"What is the breaking capacity of 3RV2031-4XB10 at 400 V?","answer":"At 400 V the 3RV2031-4XB10 has a breaking capacity of 30 kA. At 240 V it interrupts 100 kA, and at 690 V it interrupts 2 kA."},{"question":"What compliance documentation does Siemens provide for 3RV2031-4XB10?","answer":"As a current-production SIRIUS motor protection circuit breaker, the 3RV2031-4XB10 is covered by Siemens standard compliance documentation including RoHS and REACH declarations, and is designed to meet relevant IEC and UL standards for motor protection circuit breakers. Specific certificates are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2031-4XB10","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/3RV2031-4XB10 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}}