{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2636-1AF03","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2636-1AF03","canonicalUrl":"https://aoctrl.com/siemens/3RT2636-1AF03","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2636-1AF03","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS capacitor contactor, 3RT2636-1AF03, S2 size, 110 VAC 50 Hz coil, screw-type terminals, DIN rail mount.","salesMarkdown":"The 110 VAC 50 Hz coil draws its control voltage from a standard lighting or control transformer, and the screw-type coil terminals accept solid conductors up to 2x 4 mm² or stranded up to 1x 50 mm² — typical for panel wiring in 100–200 A distribution. ## Switching ratings — what the numbers mean Capacitor contactors are rated differently from standard motor contactors. The 3RT2636-1AF03 is specified for capacitor switching at voltages up to 690 V AC, with a maximum switching frequency that drops as voltage rises: 100 operations per hour at 230/240/400 V, 60 at 480 V, 55 at 500 V, 40 at 600 V, and 30 at 690 V. The arcing time of 10–20 ms and the switching time of 10–18 ms (at AC) are fast enough to avoid nuisance tripping of upstream fuses during inrush. The S2 footprint — 65 mm wide, 114 mm tall, 130 mm deep — fits standard panel cutouts.","metaTitle":"Siemens 3RT2636-1AF03 SIRIUS Capacitor Contactor, 110 VAC Co","metaDescription":"Siemens 3RT2636-1AF03 SIRIUS capacitor contactor, 110 VAC 50 Hz coil, S2 size, screw-type terminals. Rated for capacitor switching up to 690 V. Sourced to order against RFQ.","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":"10 ... 18 ms","title":"3RT2636-1AF03","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 690 V":"0 A","at 40 °C":"1x 35 mm²","at 60 °C":"1x 50 mm²","Attachable":"1","Arcing Time":"10 ... 20 ms","description":"capacitor contactor, AC-6b 50 kVAr, / 400 V, 3-pole, 110 V AC, 50 Hz, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S2","1 Rated Value":"50 Hz","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Type Of Voltage":"AC","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","at 230 V maximum":"100 1/h","at 240 V maximum":"100 1/h","at 400 V maximum":"100 1/h","at 480 V maximum":"60 1/h","at 500 V maximum":"55 1/h","at 600 V maximum":"40 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":"S2","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Product Brand Name":"SIRIUS","Product Designation":"capacitor contactors","at 50 Hz rated value":"110 V","Instantaneous Contact":"1","For Main Current Circuit":"screw-type terminals","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","Substance Prohibitance (Date)":"05/01/2014","For Grounded Parts At The Side":"10 mm","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 0)","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","At Contactor For Auxiliary Contacts":"Screw-type terminals","at 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":"16 VA","apparent pick-up power of magnet coil at AC":"190 VA","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Type Of Voltage Of The Control Supply Voltage":"AC","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.72","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":"0.37","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: 160 A (690 V, 50 kA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$148.59","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0e2a6b2dcf3edf5fdc00f24707dab2d4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=454385&mlfb=3RT2636-1AF03"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT2636-1AF03?","answer":"The peer part 3RT2536-1AF00 is the closest functional alternative — same S2 frame, capacitor contactor class, and similar switching ratings. The main difference is the coil voltage; 3RT2536-1AF00 uses a different control voltage, so verify your panel's control supply before substituting."},{"question":"Will 3RT2636-1AF03 drop into a panel specified around 3RT2536-1AF00 without rewiring?","answer":"Mechanically yes — both are S2 size with the same DIN rail footprint and screw-type terminals. Electrically, check the coil voltage: 3RT2636-1AF03 is 110 VAC 50 Hz; if the panel was wired for a different coil voltage on the 3RT2536-1AF00, the control circuit will need re-termination."},{"question":"Where can I buy 3RT2636-1AF03 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2636-1AF03","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/3RT2636-1AF03 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}