{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1342-4EC10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1342-4EC10","canonicalUrl":"https://aoctrl.com/siemens/3RV1342-4EC10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1342-4EC10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1342-4EC10 circuit breaker for starter combinations, 32 A continuous, 100 kA breaking at 400 V AC, 15 kW motor rating at 400 V, screw terminals, DIN-rail mount.","salesMarkdown":"The Siemens SIRIUS 3RV1342-4EC10 is a three-pole circuit breaker designed for starter combinations — meaning it combines motor protection (overload and short-circuit) in one compact device that coordinates directly with a contactor. No side clearance needed (0 mm at the side, 0 mm backwards), so you can pack breakers tight on the rail. Any mounting position is allowed, which simplifies layout in crowded cabinets. ## Termination and wiring Main current circuit uses screw-type box terminals. Solid conductors: 2x (2.5 to 16 mm²). Stranded: 2x (10 to 50 mm²) or 1x (10 to 70 mm²). Finely stranded with ferrule: 2x (2.5 to 35 mm²) or 2.5 to 50 mm². That range covers most motor feeder cables up to 70 mm² on a single run. Auxiliary and control circuit terminals are also screw-type, separate from the main power path.","metaTitle":"Siemens 3RV1342-4EC10 SIRIUS Circuit Breaker, 32 A, 100 kA","metaDescription":"Siemens SIRIUS 3RV1342-4EC10 circuit breaker for starter combinations. 32 A continuous, 100 kA breaking at 400 V, 15 kW motor rating. DIN-rail mount. Current lifecycle stage. Quote","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"174 mm","Solid":"2x (2.5 ... 16 mm²)","Width":"70 mm","Height":"165 mm","Stranded":"2x (10 ... 50 mm²), 1x (10 ... 70 mm²)","Backwards":"0 mm","At The Side":"0 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","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 50022","Shock Resistance":"25g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"circuit breaker","at 400 V rated value":"15 kW","Design Of The Product":"for starter combinations","Ground Fault Detection":"No","Phase Failure Detection":"No","For Main Current Circuit":"screw-type terminals with box terminals","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":"22 kA","at AC at 690 V rated value":"12 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"21 W","Substance Prohibitance (Date)":"07/01/2006","Continuous Current Rated Value":"32 A","at AWG cables for main contacts":"2x (10 ... 1), 1x (10 ... 2)","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 000 V","at AC in hot operating state per pole":"7 W","Finely Stranded With Core End Processing":"2x (2.5 ... 35 mm²), 2.5 ... 50 mm²","Number Of Poles For Main Current Circuit":"3","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","operational current at AC-3 at 400 V rated value":"32 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Design Of The Overcurrent Release And Short-Circuit Release":"magnetic","Arrangement Of Electrical Connectors For Main Current Circuit":"front side","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Switching Cycles) Of The Main Contacts Typical":"50 000"}},"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=88076&mlfb=3RV1342-4EC10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1342-4EC10/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1342-4EC10 at 400 V?","answer":"100 kA at 400 V AC, which means it can safely interrupt a fault current up to 100,000 amps at that voltage without upstream protection needing to clear first."},{"question":"What motor power does 3RV1342-4EC10 support at 400 V?","answer":"15 kW at 400 V AC-3 duty — that's the motor rating for standard three-phase induction motors."},{"question":"Where can I buy 3RV1342-4EC10?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does 3RV1342-4EC10 have?","answer":"Substance prohibitance date is 07/01/2006, indicating RoHS compliance. The brand provides standard documentation for industrial circuit breakers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1342-4EC10","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/3RV1342-4EC10 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}}