{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1516-1BA40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1516-1BA40","canonicalUrl":"https://aoctrl.com/siemens/3RT1516-1BA40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1516-1BA40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1516-1BA40, size S00, 24 VDC coil rated 10 A, screw-type terminals, snap-on DIN rail mount.","salesMarkdown":"The 24 VDC coil draws its rated 10 A at pickup, then holds on lower current — the coil's rated value at 24 V is 10 A, which tells you the inrush the control transformer or DC supply needs to deliver. On the output side, it switches 6 A at 230 V AC and 3 A at 400 V AC, making it a fit for small pumps, fans, and conveyor motors in the 1–2 kW range. The main circuit impulse withstand is rated at 6 kV, and auxiliary circuit at 6 kV as well, which covers standard industrial transient environments without requiring external MOVs in most panels. ## Wiring and mounting fit Screw-type terminals on the main circuit accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) — solid or stranded. That's enough for the motor leads on a 1–2 kW load. The auxiliary contacts (1 NO + 1 NC) are rated 9 A each, which handles pilot duty on PLC inputs or relay coils. Dimensions are 45 mm wide, 57.5 mm high, 72 mm deep — the S00 footprint that fits in a standard 45 mm slot on the DIN rail. Mounting position is flexible: vertical surface with ±180° rotation or ±30° tilt front/back.","metaTitle":"Siemens 3RT1516-1BA40 SIRIUS Power Contactor, Size S00, 24 V","metaDescription":"Siemens 3RT1516-1BA40 SIRIUS power contactor, size S00, 24 VDC 10 A coil, screw terminals, DIN rail mount. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","at DC":"7 ... 10 ms","Height":"57.5 mm","Maximum":"2 000 m","Arcing time":"10 ... 15 ms","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","During Storage":"-55 ... +80 °C","Of The Terminal":"IP20","at AC-1 maximum":"1 000 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.1","Mounting position":"with vertical mounting surface +/-180° rotatable, with vertical mounting surface +/- 30° tiltable to the front and back","Size of contactor":"S00","Product brand name":"SIRIUS","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 440 V rated value":"0.8 A","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)","per NC contact rated value":"9 A","per NO contact rated value":"9 A","Of Main Circuit Rated Value":"6 kV","at maximum AC-1 rated value":"2.5 mm²","Of Auxiliary Circuit Rated Value":"6 kV","at DC at 24 V maximum permissible":"0.01 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 24 V per NC contact rated value":"16 A","at 24 V per NO contact rated value":"16 A","Protection against electrical shock":"finger-safe","at 110 V per NC contact rated value":"0.175 A","at 110 V per NO contact rated value":"0.35 A","at 220 V per NC contact rated value":"0.375 A","at 220 V per NO contact rated value":"0.75 A","at 230 V per NC contact rated value":"3 kW","at 230 V per NO contact rated value":"3 kW","at 400 V per NC contact rated value":"4 kW","at 400 V per NO contact rated value":"4 kW","at AWG conductors for main contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","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":"2","Number of NO contacts for main contacts":"2","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number of poles for main current circuit":"4","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","Type of voltage of the control supply voltage":"DC","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","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","Power loss [W] at AC-3 at 400 V for rated value of the operating current per conductor":"0.7 W"}},"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=80374&mlfb=3RT1516-1BA40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1516-1BA40/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this contactor?","answer":"24 VDC coil rated 10 A. Main contacts switch 6 A at 230 V AC, 3 A at 400 V AC. Auxiliary contacts rated 9 A per NO/NC. Impulse withstand 6 kV main and auxiliary circuits. Size S00, 45 mm wide, mounts on 35 mm DIN rail."},{"question":"What wire sizes does the screw terminal accept?","answer":"Screw terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid or stranded conductors."},{"question":"What is the operating temperature range?","answer":"Operating range is -25 to +60 °C. Storage range is -55 to +80 °C. The front and terminals carry IP20 finger-protection rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1516-1BA40","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/3RT1516-1BA40 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}}