{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1516-1BW40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1516-1BW40","canonicalUrl":"https://aoctrl.com/siemens/3RT1516-1BW40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1516-1BW40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 3RT1516-1BW40, 24 VDC coil, screw-type terminals, 45 mm width, IP20 front protection.","salesMarkdown":"## SIRIUS power contactor, size S00 — 24 VDC coil, screw terminals The 24 VDC coil draws its holding current from a standard 24 VDC supply; dropout occurs below the 0.85 initial-value threshold, so verify your control voltage stays above that during brownout conditions. Main circuit connections use screw-type terminals, accepting solid or stranded copper: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or max 2x (0.75...4 mm²). The auxiliary contacts — one NO and one NC — are each rated 9 A, and share the same terminal style. ## DC switching capability across the voltage range This contactor carries a DC-1 rated switching curve: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, and 0.8 A at 440 V. The arcing time runs 10...15 ms; the operate time at DC is 7...10 ms. For DC loads, the inductive time constant of the circuit governs contact erosion — the listed currents assume resistive or slightly inductive DC loads, not heavily suppressed arcs. ## Mounting and integration — DIN rail, side-by-side, orientation ## Environmental limits and altitude","metaTitle":"Siemens 3RT1516-1BW40 SIRIUS Power Contactor, Size S00, 24 V","metaDescription":"Siemens 3RT1516-1BW40 SIRIUS power contactor, size S00, 45 mm width, screw terminals, 24 VDC coil rated 10 A. Current lifecycle stage. Sourced to order.","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":"48 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":"$128.80","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=22978&mlfb=3RT1516-1BW40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1516-1BW40/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1516-1BW40 and what is the lead time?","answer":"This part is sourced to order through our independent distribution channel. Availability and current pricing are confirmed at quote time against an RFQ."},{"question":"What is the closest functional second-source to 3RT1516-1BW40?","answer":"The closest functional peer is 3RT1016-1AG61, which shares the S00 frame size and 24 VDC coil voltage. The 3RT1516-1BW40 uses screw-type terminals; the 3RT1016-1AG61 uses spring-cage terminals. Both mount on 35 mm DIN rail and occupy the same 45 mm width, so a panel designed for one can accept the other without rewiring the rail or changing the footprint — but terminal preparation differs (ferrule vs bare wire)."},{"question":"What is the depth of 3RT1516-1BW40?","answer":"The depth is 72 mm, measured from the mounting surface to the furthest terminal projection."},{"question":"What wire sizes does the screw terminal accept?","answer":"Solid or stranded: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or max 2x (0.75...4 mm²)."},{"question":"Will 3RT1516-1BW40 drop into a panel specified around 3RT1016-1AG61 without rewiring?","answer":"Yes, the DIN-rail footprint (45 mm width, 57.5 mm height, 72 mm depth) and mounting method are identical. The difference is terminal type: screw vs spring-cage. If the panel wiring uses ferruled stranded wires sized for a spring cage, the screw terminal will accept them — but the reverse (bare solid wire into a spring cage designed for ferrules) may not. No rewiring of the rail or bus is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1516-1BW40","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/3RT1516-1BW40 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}}