{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2115-0KA16-2BB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2115-0KA16-2BB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2115-0KA16-2BB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2115-0KA16-2BB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2115-0KA16-2BB4 direct online starter, size S00, 370 W at 400 V, Class 10, screw terminals, 45 mm width, 97 mm depth, 167 mm height.","salesMarkdown":"## Direct starter, size S00 — what's inside The 3RA2115-0KA16-2BB4 is a SIRIUS direct online starter in size S00, combining a contactor, overload relay, and circuit-breaker in one assembly for motor starting and protection up to 370 W at 400 V. It ships with a 3RT2016-1BB42 contactor, a 3RA1921-1DA00 link module, and a 3RV2011-0KA15 circuit-breaker — all pre-assembled and wired internally, so you mount and connect the main and control wires. ## Trip class and protection design The overload release is thermal bimetallic (ambient-compensated -20 to +60 °C), and the short-circuit trip is magnetic — a combined design that handles both sustained overloads and fault currents in one device. ## Mounting and panel fit Mounts vertically on 35 mm DIN rail (screw and snap-on) or directly with screws. The 45 mm width and 97 mm depth fit standard S00 feeder slots; clearance needs: 50 mm above, 20 mm front, 10 mm below, 20 mm at the sides. Main and auxiliary/control circuits use screw-type terminals — no special tooling needed for field wiring.","metaTitle":"Siemens 3RA2115-0KA16-2BB4 SIRIUS Direct Starter","metaDescription":"Siemens 3RA2115-0KA16-2BB4 SIRIUS direct online starter, 370 W at 400 V, Class 10, size S00. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"97 mm","Width":"45 mm","title":"3RA2115-0KA16-2BB4","Height":"167 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 screw terminal for installation on standard mounting rail (also fulfills type of coordination 1) Type of coordination 2, Iq = 150 kA 1 NC (contactor) 1 NO+1 NC (circuit breaker, transverse)","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","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","at 480 V rated value":"1.25 A","Design Of The Product":"for standard rail or screw mounting","For Main Current Circuit":"screw-type terminals","Temperature Compensation":"-20 ... +60 °C","at 460/480 V rated value":"0.5 hp","at 575/600 V rated value":"0.5 hp","Of The Supplied Contactor":"3RT2016-1BB42","Of The Supplied Link Module":"3RA1921-1DA00","Size Of The Circuit-Breaker":"S00","at AC-3 rated value maximum":"690 V","Design Of The Overload Release":"thermal (bimetallic)","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":"3RV2011-0KA15","degree of protection NEMA rating":"other","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","holding power of magnet coil at DC":"4 W","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","with high demand rate according to SN 31920":"73 %","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/008de04555f910189cfd16fca5b789c1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=245457&mlfb=3RA2115-0KA16-2BB4"},"ai":{"faq":[{"question":"What is the power rating of 3RA2115-0KA16-2BB4 at 400 V?","answer":"Rated 370 W at 400 V, 50/60 Hz, in AC-3 duty. At 480 V the rated current is 1.25 A; at 460/480 V and 575/600 V the horsepower rating is 0.5 hp."},{"question":"What compliance documentation does Siemens provide for 3RA2115-0KA16-2BB4?","answer":"The product carries Siemens standard declarations (CE, UKCA, RoHS, REACH) as part of the SIRIUS series. Specific certificates are available on request at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2115-0KA16-2BB4","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/3RA2115-0KA16-2BB4 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}}