{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2115-1CA15-1AK6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2115-1CA15-1AK6","canonicalUrl":"https://aoctrl.com/siemens/3RA2115-1CA15-1AK6","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2115-1CA15-1AK6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2 non-fused direct motor starter, S00 frame, 750 W at 400 V, CLASS 10 thermal bimetallic overload, supplied with 3RT2015-1AK61 contactor and link module.","salesMarkdown":"The Siemens 3RA2115-1CA15-1AK6 is a non-fused direct motor starter from the SIRIUS 3RA2 family, size S00. It ships as a pre-assembled unit: the 3RT2015-1AK61 contactor and 3RA1921-1DA00 link module are included, so panel builders get a single order code for the motor branch instead of sourcing contactor, overload relay, and wiring separately. Rated 750 W at 400 V (AC-3) and 1.1 kW at 500 V, this starter handles small induction motors — pumps, fans, conveyors — in control panels up to 690 V AC-3 maximum. Snap-mounts onto a DIN rail or screws to a backplate with an additional push-in lug. The S00 frame (45 mm wide, 167.2 mm tall, 97.1 mm deep) keeps the panel footprint tight. No official successor part is published because none is needed — the 3RA2 series remains the current SIRIUS motor-starter platform. If a buyer is cross-referencing from an older SIRIUS 3RV or third-party starter, the functional match depends on the S00 frame size and CLASS 10 characteristic, not on a direct order-code swap. That suits standard squirrel-cage motors with moderate acceleration times — common for pumps and light conveyors. For high-inertia loads (centrifuges, crushers) that need longer start times, a CLASS 20 or CLASS 30 overload would be required. The supplied contactor 3RT2015-1AK61 has an AC-3 rating of 690 V maximum. Verify the line-to-line voltage stays within that ceiling; the motor nameplate must also match the 750 W (1 hp at 460/480 V) capability. The thermal overload adjusts to the motor FLA, not the contactor size — set it per the motor nameplate. Not rated for outdoor installation without additional enclosure protection. Snap-on DIN rail mounting per EN 60715 is the standard method; screw-mounting via the push-in lug is an option when DIN rail is not available. The S00 frame requires 45 mm of DIN rail width. Clearance: 20 mm upward, 10 mm downward, 9 mm at the sides — no extra space needed forward or backward. Main contact wiring accepts 0.5 to 4 mm² solid or stranded, or 2× (0.75 to 2.5 mm²) for paralleled conductors. Control voltage for the contactor coil is 93.5–121 V at 50 Hz or 96–132 V at 60 Hz — confirm the control transformer taps match before energizing.","metaTitle":"Siemens 3RA2115-1CA15-1AK6 SIRIUS Motor Starter","metaDescription":"Siemens 3RA2115-1CA15-1AK6 SIRIUS non-fused motor starter, 750W at 400V, CLASS 10 thermal overload, S00 frame. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"97.1 mm","Width":"45 mm","Height":"167.2 mm","Upwards":"20 mm","Forwards":"0 mm","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"9 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Snap-mounted to DIN rail or screw-mounted with additional push-in lug","Mounting Position":"vertical","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Degree Of Pollution":"3","Product Designation":"non-fused motor starter 3RA2","Size Of Load Feeder":"S00","at 230 V rated value":"0.17 hp","at 400 V rated value":"750 W","at 480 V rated value":"2.15 A","at 50 Hz rated value":"93.5 ... 121 V","at 500 V rated value":"1 100 W","at 60 Hz rated value":"96 ... 132 V","at 600 V rated value":"2.24 A","Design Of The Product":"direct starter","at 200/208 V rated value":"0.5 hp","at 220/230 V rated value":"0.5 hp","at 460/480 V rated value":"1 hp","at 575/600 V rated value":"1.5 hp","Of The Supplied Contactor":"3RT2015-1AK61","For Main Contacts Stranded":"0.5 ... 4 mm², 2x (0.75 ... 2.5 mm²)","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","at AWG cables for main contacts":"2x (20 ... 16), only for contactor 2x (18 ... 14), 2x 12","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2011-1CA15","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","apparent holding power of magnet coil at AC":"4.8 VA","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"2","shock resistance according to IEC 60068-2-27":"6g / 11 ms","at 400 V according to IEC 60947-4-1 rated value":"153 000 A","at 500 V according to IEC 60947-4-1 rated value":"100 000 A","operational current at AC-3 at 400 V rated value":"1.9 A","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Inductive Power Factor With The Holding Power Of The Coil":"0.25","Mechanical Service Life (Operating Cycles) Of Contactor Typical":"30 000 000","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"32.5 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"1.8 ... 2.5 A","Connectable Conductor Cross-Section For Main Contacts Finely Stranded With Core End Processing":"0.5 ... 2.5 mm²"}},"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=189128&mlfb=3RA2115-1CA15-1AK6","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA2115-1CA15-1AK6/alternatives.json"},"ai":{"faq":[{"question":"What is the trip class of the 3RA2115-1CA15-1AK6?","answer":"CLASS 10. The thermal bimetallic overload relay opens within 10 seconds at 7.2× the set current. This suits standard motor starts for pumps, fans, and conveyors."},{"question":"Can the 3RA2115-1CA15-1AK6 be used on 600 VAC?","answer":"Yes, the AC-3 rating goes up to 690 V maximum. At 600 V the motor current rating is 2.24 A, and at 575/600 V the horsepower rating is 1.5 hp. Verify the motor FLA is within the thermal overload adjustment range."},{"question":"What is the difference between the 3RA2115-1CA15-1AK6 and the 3RA2115-1CA15-1AK0?","answer":"The difference is the supplied contactor coil voltage. The -1AK6 variant has a 93.5–121 V / 96–132 V coil (50/60 Hz), while the -1AK0 variant would have a different coil voltage band. The motor ratings, frame size, and overload class are identical."},{"question":"How do I get current pricing and availability for the 3RA2115-1CA15-1AK6?","answer":"Pricing and stock levels are confirmed at quote time. Submit an RFQ through the distributor; the part is sourced to order with availability confirmed against the current supply position."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2115-1CA15-1AK6","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/3RA2115-1CA15-1AK6 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}}