{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2131-4RA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2131-4RA10","canonicalUrl":"https://aoctrl.com/siemens/3RV2131-4RA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2131-4RA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, motor protection circuit breaker with overload relay function, 3RV2131-4RA10, Trip Class 10, 30 kA breaking capacity at 400 V, screw terminals, DIN rail mount.","salesMarkdown":"## Motor protection circuit breaker with integrated overload relay The Siemens SIRIUS 3RV2131-4RA10 is a motor protection circuit breaker that combines short-circuit protection with an integrated overload relay function — one device, one footprint, no separate overload block to size and wire. Per the datasheet, it is designed specifically for motor protection with overload relay function, meaning it handles both the magnetic trip for fault currents and the thermal Class 10 overload curve for running protection. Breaking capacity is the headline number here: 30 kA at 400 V AC. That is the fault current it can safely interrupt without welding contacts or rupturing the housing. For a 400 V distribution panel with a transformer rating that keeps prospective fault current under 30 kA, this breaker coordinates without needing an upstream current-limiting fuse. At 690 V the rating drops to 2 kA, so verify the available fault current at the point of installation if running on a 690 V system. Phase failure detection is built in — if one phase drops out, the overload mechanism accelerates the trip, preventing single-phasing damage to the motor. No ground fault detection on this variant, so a separate ground-fault relay or RCD is needed if that is a code requirement. ## Mounting and terminal details Mounting is screw-fixed or snap-on onto 35 mm DIN rail per DIN EN 60715. The mounting position is any orientation, which simplifies panel layout. Clearance requirements: 50 mm upwards and downwards, 10 mm at the sides, zero forwards and backwards — so it can sit flush against a backplate or enclosure wall without derating. Main circuit terminals are M6 screw-type, accepting 2 x (1 to 35 mm²) or 1 x (1 to 50 mm²) solid or stranded copper. That covers most motor feeds up to the rated current range. The 75 mm width and 140 mm height mean it occupies roughly the same DIN footprint as a standard contactor of similar rating — plan for a 75 mm wide slot per device.","metaTitle":"Siemens 3RV2131-4RA10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV2131-4RA10 SIRIUS motor protection circuit breaker with integrated overload relay. Trip Class 10, 30 kA breaking capacity at 400 V, phase failure detection. Current life","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Note":"1","Depth":"149 mm","Width":"75 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 with overload relay function","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)":"03/01/2017","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"80 A","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","Design Of The Short-Circuit Trip":"magnetic","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":"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 %","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 (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","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=228376&mlfb=3RV2131-4RA10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2131-4RA10/alternatives.json"},"ai":{"faq":[{"question":"Does 3RV2131-4RA10 include phase failure protection?","answer":"Yes, phase failure detection is built into the overload mechanism. Ground fault detection is not included on this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2131-4RA10","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/3RV2131-4RA10 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}}