{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2311-4AC20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2311-4AC20","canonicalUrl":"https://aoctrl.com/siemens/3RV2311-4AC20","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2311-4AC20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS circuit breaker, 3RV2311-4AC20, for starter combinations, 45 mm width, 100 kA breaking capacity at 240 V AC, screw and snap-on DIN rail mount.","salesMarkdown":"## Breaking capacity — the real-world fault current it handles Rated short-circuit breaking capacity at 240 V AC is 100 kA with gL/gG fuses, dropping to 30 kA at 400 V, 5 kA at 500 V, and 2 kA at 690 V. That 30 kA at 400 V is the figure that matters for most European 400 V industrial panels — it safely interrupts faults up to that level without cascading upstream, which is what UL 508A and IEC 60947-2 coordination studies check. Continuous current rating is 16 A at both 480 V and 600 V, so it covers 5.5 kW (7.5 hp) motor loads at 460/480 V three-phase. ## Panel integration and clearances Width is 45 mm — a single DIN module — so it occupies one position on the rail. Depth is 97 mm, height 106 mm. That 50 mm top clearance is the one that catches people out when the enclosure backplate is tight to the gland plate. No derating needed for most indoor panel environments unless ambient exceeds 60 °C.","metaTitle":"Siemens 3RV2311-4AC20 SIRIUS Circuit Breaker, 45 mm, 100 kA","metaDescription":"Siemens 3RV2311-4AC20 SIRIUS circuit breaker for starter combinations. 45 mm wide, 100 kA SCCR at 240 V, 30 kA at 400 V. Screw and snap-on DIN rail mount. Current lifecycle stage.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"97 mm","Width":"45 mm","Height":"106 mm","Upwards":"50 mm","Forwards":"0 mm","at 240 V":"gL/gG 80 A","at 400 V":"gL/gG 63 A","at 500 V":"gL/gG 50 A","at 690 V":"gL/gG 40 A","Backwards":"0 mm","Downwards":"50 mm","At The Side":"30 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","Mounting Position":"any","Solid Or Stranded":"2x (0,5 ... 4 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"2 hp","at 240 V rated value":"100 kA","at 400 V rated value":"30 kA","at 480 V rated value":"16 A","at 500 V rated value":"5 kA","at 600 V rated value":"16 A","at 690 V rated value":"2 kA","Design Of The Product":"For starter combinations","Ground Fault Detection":"No","Phase Failure Detection":"No","For Main Current Circuit":"spring-loaded terminals","at 110/120 V rated value":"1 hp","at 200/208 V rated value":"3 hp","at 220/230 V rated value":"5 hp","at 460/480 V rated value":"10 hp","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"55 kA","at AC at 500 V rated value":"10 kA","at AC at 690 V rated value":"4 kA","Design Of Screwdriver Shaft":"Diameter 3 mm","Size Of The Circuit-Breaker":"S00","Size Of The Screwdriver Tip":"3,0 x 0,5 mm","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"100 000","at AC in hot operating state":"9.25 W","at AC-3 at 400 V rated value":"16 A","at AC-3e rated value maximum":"690 V","Of Auxiliary Contacts Typical":"100 000","Substance Prohibitance (Date)":"10/01/2009","at AC-3e at 400 V rated value":"16 A","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"16 A","at AWG cables for main contacts":"2x (20 ... 12)","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":"3.1 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 (0.5 ... 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","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","with high demand rate according to SN 31920":"50 %","number of CO contacts for auxiliary contacts":"0","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","Electrical Endurance (Operating Cycles) Typical":"100 000","Size Of Contactor Can Be Combined Company-Specific":"S00, S0","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":"208 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$36.83","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2043fe1ddb3124101f7a48804d6d08d7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=496191&mlfb=3RV2311-4AC20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2311-4AC20/alternatives.json"},"ai":{"faq":[{"question":"What are the mounting clearances for 3RV2311-4AC20?","answer":"50 mm above and below, 30 mm to the sides, zero forward or backward. The 50 mm top clearance is the critical one for enclosure sizing."},{"question":"Does 3RV2311-4AC20 include ground fault or phase failure detection?","answer":"No — this is a basic motor-protective circuit breaker without ground fault or phase failure detection. Those functions require a separate electronic overload relay or a different SIRIUS variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2311-4AC20","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/3RV2311-4AC20 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}}