{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2645-1NF35","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2645-1NF35","canonicalUrl":"https://aoctrl.com/siemens/3RT2645-1NF35","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2645-1NF35","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2645-1NF35 contactor, screw-type coil terminals, AC/DC 83-155V, 80mm width, 152mm depth, DIN rail mount.","salesMarkdown":"The Siemens 3RT2645-1NF35 is a SIRIUS contactor with an AC/DC coil rated 83–155 V at 50/60 Hz. The 80 mm width and 152 mm depth mean it takes up a standard three-module footprint — no surprises when you're laying out a row of contactors and overloads. This contactor switches 6 A at 24 V and 230 V, and 3 A at 400 V. At 690 V it is rated 0 A — it is not built for that voltage class. The operating times are 38–57 ms for both AC and DC, and the arcing time runs 10–20 ms. That is typical for a contactor this size; the arcing time tells you how long the contacts carry current after opening, which matters for contact life on inductive loads like small motors or solenoids. Maximum operating frequency depends on the voltage you are switching: 200 operations per hour at 230–240 V, dropping to 30 per hour at 600–690 V. If you are cycling a load at high voltage, this contactor is not meant for rapid switching — it is a general-purpose machine for moderate duty cycles. ## Wire terminations — what fits and what does not The main power terminals accept solid wire in combinations: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or 2x 4 mm². For stranded wire, it takes 2x (10–70 mm²) or 1x (10–70 mm²). The coil uses screw-type terminals. That covers most panel wiring from control circuits up to moderate power feeds. If you are landing 70 mm² stranded, make sure your lug or ferrule fits the terminal opening — the spec says it accepts it, but the physical space is tight. ## Environmental limits and mounting flexibility That is a wide thermal margin — it handles a hot panel in a steel mill or a cold warehouse. That helps when you are shoehorning it into a tight enclosure and the DIN rail is not perfectly square.","metaTitle":"Siemens 3RT2645-1NF35 Contactor, 83-155V AC/DC, 80mm","metaDescription":"Siemens 3RT2645-1NF35 contactor, 83-155V AC/DC coil, screw terminals. 80mm wide, 152mm deep, DIN rail mount. Sourced to order. Get a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"152 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"80 mm","at AC":"38 ... 57 ms","at DC":"38 ... 57 ms","Height":"140 mm","at 24 V":"6 A","at 60 V":"2 A","Stranded":"2x (10 ... 70 mm²), 1x (10 ... 70 mm²)","at 110 V":"1 A","at 125 V":"0.9 A","at 220 V":"0.3 A","at 230 V":"6 A","at 400 V":"3 A","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.8 ... 1.1","at 690 V":"0 A","at 40 °C":"1x 50 mm²","at 60 °C":"2x 35 mm²","Attachable":"1","Arcing Time":"10 ... 20 ms","Rated Value":"83 ... 155 V","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Type Of Voltage":"AC/DC","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022","Full-Scale Value":"1.1","at 230 V maximum":"200 1/h","at 240 V maximum":"200 1/h","at 400 V maximum":"80 1/h","at 480 V maximum":"53 1/h","at 500 V maximum":"53 1/h","at 600 V maximum":"30 1/h","at 690 V maximum":"30 1/h","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S3","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Product Brand Name":"SIRIUS","Inrush Current Peak":"1.5 A","Product Designation":"capacitor contactors","at 50 Hz rated value":"83 ... 155 V","at 60 Hz rated value":"83 ... 155 V","Instantaneous Contact":"0","For Main Current Circuit":"screw-type terminals","Locked-Rotor Current Peak":"2.7 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"15 mA","Of Main Circuit Rated Value":"8 kV","Substance Prohibitance (Date)":"06/26/2017","For Grounded Parts At The Side":"10 mm","Duration Of Inrush Current Peak":"50 µs","Locked-Rotor Current Mean Value":"1.1 A","Duration Of Locked-Rotor Current":"150 ms","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","closing power of magnet coil at DC":"76 W","holding power of magnet coil at DC":"1.8 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","With Side-By-Side Mounting At The Side":"10 mm","Electrical Endurance (Operating Cycles)":"200 000","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","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":"3","Contact Reliability Of Auxiliary Contacts":"0.00000001","mirror contact according to IEC 60947-4-1":"No","apparent holding power of magnet coil at AC":"3.1 VA","apparent pick-up power of magnet coil at AC":"163 VA","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"0","Type Of Voltage Of The Control Supply Voltage":"AC/DC","contact rating of auxiliary contacts according to UL":"A600 / Q600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"1 000 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"3 000 000","operational current of auxiliary contacts at AC-12 maximum":"10 A","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","AWG number as coded connectable conductor cross section for main contacts":"8","For Short-Circuit Protection Of The Main Circuit With Type Of Coordination 1 Required":"gG: 250 A (690 V, 50 kA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b330efa06bbb03d27c904e66984f8b1c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=915510&mlfb=3RT2645-1NF35","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2645-1NF35/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT2645-1NF35 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a quote request; availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 3RT2645-1NF35?","answer":"The depth is 152 mm."},{"question":"What solid wire sizes fit the 3RT2645-1NF35 terminals?","answer":"The terminals accept 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or 2x 4 mm² solid wire."},{"question":"Will 3RT2645-1NF35 drop into a panel built for 3RT1044-1FB46?","answer":"The 3RT2645-1NF35 is 80 mm wide and mounts on 35 mm DIN rail, same as the 3RT1044-1FB46. Physical footprint should match, but verify the terminal layout and coil voltage before swapping — the coil on this unit is 83–155 V AC/DC, which may differ from the other part's coil rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2645-1NF35","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/3RT2645-1NF35 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}}