{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2311-1KC20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2311-1KC20","canonicalUrl":"https://aoctrl.com/siemens/3RV2311-1KC20","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2311-1KC20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS circuit breaker 3RV2311-1KC20, for starter combinations, 45 mm width, 97 mm depth, 100 kA breaking capacity at 400 V, spring-loaded terminals.","salesMarkdown":"At 45 mm wide and 97 mm deep, it takes up a single modular slot, which matters when you're packing multiple motor starters into a tight enclosure. At 690 V it's rated 4 kA, so if you're running a 690 V line, the available fault current needs to stay under that limit. For motor protection, the 3RV2311-1KC20 carries horsepower ratings across common North American voltages: 3 hp at 200/208 V, 8 hp at 460/480 V, and 10 hp at 575/600 V. That covers a lot of standard induction motors you'll find on pumps, fans, and conveyors. The maximum operating frequency in AC-3 duty (starting and stopping a running motor) is 15 operations per hour — fine for most process applications, but if you're cycling a motor every couple of minutes, you'll want to check the thermal duty cycle against your actual load. The gL/gG fuse coordination is specified per voltage: 63 A at 400 V, 50 A at 500 V, and 40 A at 690 V. That tells your panel builder what upstream fuse to select for selective coordination — so a fault on this branch doesn't take the whole panel down. That zero forward clearance means you can butt it against a panel door or another device without heat buildup concerns — handy when you're stacking breakers in a row.","metaTitle":"Siemens 3RV2311-1KC20 SIRIUS Circuit Breaker, 100 kA at 400","metaDescription":"Siemens 3RV2311-1KC20 SIRIUS circuit breaker for starter combinations. Rated 100 kA at 400 V, 45 mm wide, 97 mm deep. Spring-loaded terminals, DIN rail mount. Current lifecycle, av","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 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":"100 kA","at 480 V rated value":"12.5 A","at 500 V rated value":"42 kA","at 600 V rated value":"12.5 A","at 690 V rated value":"4 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":"0.5 hp","at 200/208 V rated value":"3 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"8 hp","at 575/600 V rated value":"10 hp","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"100 kA","at AC at 500 V rated value":"42 kA","at AC at 690 V rated value":"6 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":"12.5 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":"12.5 A","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"12.5 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":"163 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/07e845dc8d36d69def8ab607dd1eccc2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=319701&mlfb=3RV2311-1KC20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2311-1KC20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV2311-1KC20 and get a price?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What are the key dimensions of 3RV2311-1KC20?","answer":"Width is 45 mm, depth 97 mm, height 106 mm. It mounts on 35 mm DIN rail with 50 mm clearance above and below, 30 mm to the sides, and zero clearance forward or backward."},{"question":"What's the breaking capacity of 3RV2311-1KC20?","answer":"100 kA at 400 V AC, 42 kA at 500 V, and 4 kA at 690 V. At 240 V AC it's also rated 100 kA."},{"question":"Will 3RV2311-1KC20 drop into a panel specified around 3RV2023-4DA10?","answer":"Both are SIRIUS motor-protective circuit breakers on the same 45 mm DIN-rail footprint, so the physical swap is straightforward. But check the current and breaking-capacity ratings against your load — the 3RV2023-4DA10 may have different trip settings or SCCR values that need coordination with your upstream protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2311-1KC20","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/3RV2311-1KC20 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}}