{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2637-1NF35","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2637-1NF35","canonicalUrl":"https://aoctrl.com/siemens/3RT2637-1NF35","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2637-1NF35","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2 contactor, 3RT2637-1NF35, 6 A at 230 V, screw-type terminals, 65 mm width, 130 mm depth.","salesMarkdown":"Coil is AC/DC, 83–155 V, so it'll pull in on whatever control voltage you've got in that range without needing a separate coil rectifier. Snaps onto a 35 mm DIN rail per EN 50022 — the standard stuff. 65 mm wide, 114 mm tall, 130 mm deep, so it fits in a standard 8-module wide enclosure with room for a few aux blocks alongside. ## Termination details Power terminals are screw-type, accepting solid conductors from 0.5 mm² up to 4 mm² (2x each), and stranded from 10 mm² up to 50 mm² (1x). That's enough for a 40 °C rated lug on the main circuit. Coil terminals are also screw-type, so you're not hunting for a special tool on site.","metaTitle":"Siemens 3RT2637-1NF35 Contactor, 6A at 230V, 65mm wide","metaDescription":"Siemens 3RT2637-1NF35 contactor, 6A rated at 230V, 65mm wide, 130mm deep. Screw and snap-on DIN rail mount. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"130 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"65 mm","at AC":"30 ... 55 ms","at DC":"30 ... 55 ms","Height":"114 mm","at 24 V":"6 A","at 60 V":"2 A","Stranded":"2x (10 ... 35 mm²), 1x (10 ... 50 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":"100 1/h","at 240 V maximum":"100 1/h","at 400 V maximum":"80 1/h","at 480 V maximum":"50 1/h","at 500 V maximum":"45 1/h","at 600 V maximum":"32 1/h","at 690 V maximum":"25 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":"S2","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":"12 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":"3.1 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"22 mA","Of Main Circuit Rated Value":"6 kV","Substance Prohibitance (Date)":"05/01/2014","For Grounded Parts At The Side":"10 mm","Duration Of Inrush Current Peak":"20 µs","Locked-Rotor Current Mean Value":"1.3 A","Duration Of Locked-Rotor Current":"230 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":"70 W","holding power of magnet coil at DC":"1.5 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)":"150 000","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":"2.5 VA","apparent pick-up power of magnet coil at AC":"110 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","Inductive Power Factor With Closing Power Of The Coil":"0.95","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.95","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":"18 ... 0","For Short-Circuit Protection Of The Main Circuit With Type Of Coordination 1 Required":"gG: 200 A (690 V, 50 kA)"}},"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=315326&mlfb=3RT2637-1NF35","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2637-1NF35/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings I need to know for fit?","answer":"Rated 6 A at 230 V and 3 A at 400 V. Coil is AC/DC, 83–155 V. Width is 65 mm, depth 130 mm — fits a standard DIN-rail panel. Power terminals accept up to 50 mm² stranded wire."},{"question":"Will this contactor drop into a panel designed for a 3RT2037-1AF00-ZX95?","answer":"Both are 65 mm wide and mount on 35 mm DIN rail, so the footprint is the same. The 3RT2637-1NF35 has a higher coil voltage range (83–155 V AC/DC) versus the 3RT2037-1AF00-ZX95's specific coil rating — check your control voltage before swapping. Power terminal sizes are similar; no rewiring should be needed if the wire gauges match."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2637-1NF35","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/3RT2637-1NF35 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}}