{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-2BA41","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-2BA41","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-2BA41","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2BA41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 3RT1015-2BA41, 3.5 kW at 400 V AC-3, spring-loaded terminals, 45 mm width, current production.","salesMarkdown":"The 3RT1015-2BA41: The 3.5 kW at 400 V AC-3 rating is the number that decides fit for a motor load — AC-3 covers starting and stopping squirrel-cage motors, so that's the real-world switching capacity. For heavy-duty jogging or inching (AC-4), it's rated 6.5 A at 400 V, which is about 3 kW for a typical 400 V motor. The AC-12 rating of 10 A covers resistive loads like control transformers or heaters. Short-circuit coordination is specified: with type 2 coordination, use a gL/gG fuse rated 20 A; with type 1 coordination, a 35 A fuse. That's the factory-recommended protection for the main circuit — don't oversize the fuse or you lose the coordination guarantee. The coil operates at 24 V DC with a closing and holding power of 3.3 W. That's a constant-holding DC coil — no AC hum, and the power draw stays flat whether it's picking up or sealed in. The contactor is rated for operation up to 2,000 m altitude without derating. Above that, you'd need to account for reduced air density affecting arc extinction. The spring-loaded terminals accept 2x (0.25 to 2.5 mm²) solid or stranded conductors, or 2x (24 to 14 AWG). No screwdriver torque check needed — spring cages are vibration-resistant and faster to wire.","metaTitle":"Siemens SIRIUS 3RT1015-2BA41 Power Contactor, S00, 3.5 kW at","metaDescription":"Siemens SIRIUS 3RT1015-2BA41 power contactor, size S00, 3.5 kW at 400 V AC-3. Spring-loaded terminals, 45 mm wide. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"12 V","On The Front":"IP20","Initial Value":"0.85","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP20","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.1","Size of contactor":"S00","Product brand name":"SIRIUS","Degree of pollution":"3","Product designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"3.5 kW","at 690 V rated value":"4 kW","Instantaneous Contact":"1","Side-by-side mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","Single Or Multi-Stranded":"2x (0,25 ... 2,5 mm²)","at AC-2 at 400 V rated value":"3 kW","at AC-4 at 400 V rated value":"6.5 A","Closing power of magnet coil at DC":"3.3 W","Holding power of magnet coil at DC":"3.3 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","at AWG conductors for main contacts":"2x (24 ... 14)","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"18 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"DC","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Of The Contactor With Added Electronics-Compatible Auxiliary Switch Block Typical":"5 000 000"}},"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=48443&mlfb=3RT1015-2BA41","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2BA41/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative if I need screw terminals instead of spring-loaded?","answer":"The 3RT1015-1BB42 is the screw-terminal variant of the same S00 contactor. Same coil voltage (24 V DC), same power ratings (3.5 kW at 400 V AC-3), same 45 mm width. The only difference is the termination method — screw clamps instead of spring cages. It drops into the same DIN-rail footprint without rewiring the panel layout."},{"question":"What are the key ratings for this contactor?","answer":"Rated 3.5 kW at 400 V AC-3 for motor loads, 6.5 A at 400 V AC-4 for heavy-duty switching, and 10 A AC-12 for resistive loads. Coil is 24 V DC, 3.3 W holding power. Operating temperature -25 to +60 °C."},{"question":"What fuse protection does this contactor require?","answer":"For type 2 coordination (no damage to the contactor), use a gL/gG fuse rated 20 A. For type 1 coordination (contactor may need replacement after fault), a 35 A gL/gG fuse is permitted."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-2BA41","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/3RT1015-2BA41 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}}