{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2115-0KH15-1FB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2115-0KH15-1FB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2115-0KH15-1FB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2115-0KH15-1FB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2115-0KH15-1FB4 direct (on-line) starter, size S00, 370 W at 400 V AC-3, Class 10, 24 V DC coil, spring-loaded terminals, for 60 mm busbar systems.","salesMarkdown":"## Direct starter for 60 mm busbar systems The 3RA2115-0KH15-1FB4 is a Siemens SIRIUS direct (on-line) starter — a pre-assembled combination of a contactor, thermal overload relay, and circuit-breaker in one S00 frame. The unit snaps onto 60 mm busbar systems (the fastening method is for snapping onto 60 mm busbar systems), saving panel space versus individual components wired together. The supplied busbar adapter 8US1251-5DT11 handles the mechanical and electrical connection to the busbar. ## Supplied components and termination This starter ships as a coordinated set: contactor 3RT2015-2FB41, link module 3RA2911-2AA00, and circuit-breaker 3RV2011-0KA25. Both the main current circuit and the auxiliary/control circuit use spring-loaded terminals — no screw torque verification needed, which speeds panel wiring. The overload release is thermal (bimetallic) with magnetic short-circuit trip, Class 10 trip class. ## Mounting clearances and environment Dimensions are 155 mm deep × 45 mm wide × 260 mm high. The required clearances around the unit: 50 mm upwards, 20 mm forwards, 20 mm at the side, 10 mm downwards, and 0 mm backwards. The zero backward clearance means it can sit flush against a panel backplate — useful when gland-plate space is tight. Rated for vertical mounting position only. Operating temperature range is -20 to +60 °C with 10 to 95 % relative humidity. Storage and transport range is -50 to +80 °C. The 24 V DC coil is temperature-compensated across the operating range.","metaTitle":"Siemens 3RA2115-0KH15-1FB4 SIRIUS Direct Starter","metaDescription":"Siemens SIRIUS direct (on-line) starter, size S00, 370 W at 400 V AC-3, Class 10 thermal overload, 60 mm busbar mount. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"155 mm","Width":"45 mm","title":"3RA2115-0KH15-1FB4","Height":"260 mm","Upwards":"50 mm","Forwards":"20 mm","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"20 mm","Rated Value":"24 ... 24 V","description":"Load feeder fuseless, Direct-on-line starting 400 V AC, Size S00 0.90...1.25 A 24 V DC Spring-type terminal for 60 mm busbar systems (also fulfills type of coordination 1) Type of coordination 2, Iq = 150 kA 1 NO (contactor) with diode (integrated)","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"for snapping onto 60 mm busbar systems","Mounting Position":"vertical","PROFIsafe protocol":"No","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Product Designation":"Direct (on-line) starter","Size Of Load Feeder":"S00","PROFINET IO protocol":"No","at 400 V rated value":"370 W","Design Of The Product":"for 60 mm busbars","For Main Current Circuit":"spring-loaded terminals","Temperature Compensation":"-20 ... +60 °C","Of The Supplied Contactor":"3RT2015-2FB41","Of The Supplied Link Module":"3RA2911-2AA00","Size Of The Circuit-Breaker":"S00","at AC-3 rated value maximum":"690 V","Design Of The Overload Release":"thermal (bimetallic)","Of The Supplied Busbar Adapter":"8US1251-5DT11","Design Of The Switching Contact":"electromechanical","Operating Frequency Rated Value":"50 ... 60 Hz","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2011-0KA25","degree of protection NEMA rating":"other","For Auxiliary And Control Circuit":"spring-loaded terminals","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","Surge Voltage Resistance Rated Value":"6 kV","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","protocol is supported AS-Interface protocol":"No","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"6g / 11 ms","Type Of Voltage Of The Control Supply Voltage":"DC","at 400 V according to IEC 60947-4-1 rated value":"150 000 A","operational current at AC-3 at 400 V rated value":"1.1 A","Mechanical Service Life (Switching Cycles) Of Contactor Typical":"30 000 000","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.9 ... 1.25 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/520b66caa2fab35e30b948c9432b3bec.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=554071&mlfb=3RA2115-0KH15-1FB4"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 3RA2115-0KH15-1FB4?","answer":"The evidence does not list specific certifications (UL, CSA, CE, RoHS, REACH) for this order code. Standard Siemens SIRIUS starters carry CE marking for the European market and typically UL/CSA listings for the North American market; confirm the specific certification package with the factory documentation or your Siemens contact."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2115-0KH15-1FB4","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/3RA2115-0KH15-1FB4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}