{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1264-6AF36","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1264-6AF36","canonicalUrl":"https://aoctrl.com/siemens/3RT1264-6AF36","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1264-6AF36","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1264-6AF36 vacuum contactor, S10 frame size, screw fixing, 70–240 mm² stranded main circuit, 210 x 145 x 206 mm.","salesMarkdown":"The Siemens 3RT1264-6AF36 is a SIRIUS-branded vacuum contactor in the S10 frame size. Vacuum contactors are built for high-cycle, high-voltage switching where arc extinction in open air is a problem — think mining conveyors, mill drives, or any 3-phase motor circuit where contactor life matters more than a few dollars saved on a standard air-break unit. Main circuit accepts stranded cable from 70 mm² up to 240 mm², so this is sized for heavy feeder or large motor duty — not a 5 hp pump starter. The coil is screw-type terminals, 110–127 V rated, with pickup at 80% of rated voltage and dropout at 1.1× full-scale, which is a standard industrial control-voltage range across North American and European panels. ## Mounting and clearances — what the panel needs Fastening is screw fixing — no DIN-rail clip on this frame size. Four holes, 11 mm diameter, on a 210 mm height by 145 mm width footprint. Depth is 206 mm, so factor that into your enclosure depth before you cut the gland plate. That's minimal — the vacuum bottle does the arc quenching inside, so you don't need the big phase-to-phase air gaps an open-air contactor demands. ## Switching frequencies and mechanical life Rated switching rates: 800 operations per hour at AC-1 (resistive), 750 at AC-3 (squirrel-cage motor start/run), 300 at AC-2 (slip-ring motor), 250 at AC-4 (plugging/inching). The AC-3e rating also sits at 750 ops/h. Mechanical life is a typical 10 million operations — that's the vacuum advantage: no contact erosion from arcing in air, so the mechanical wear is the limiting factor, not the electrical wear.","metaTitle":"Siemens 3RT1264-6AF36 SIRIUS Vacuum Contactor, S10 Frame, 70","metaDescription":"Siemens 3RT1264-6AF36 SIRIUS vacuum contactor, S10 size, 70-240 mm² stranded cable range, screw fixing, 210x145x206 mm. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"206 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"145 mm","at AC":"40 ... 80 ms","at DC":"40 ... 80 ms","title":"3RT1264-6AF36","Height":"210 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"70 ... 240 mm²","at 50 Hz":"0.9","at 60 Hz":"0.9","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"10 mm","Rated Value":"110 ... 127 V","description":"vacuum contactor AC-3e/AC-3 225 A, 110 kW / 400 V, 3-pole, Uc: 110-127 V AC(50-60 Hz) / DC drive: conventional auxiliary contacts 2 NO + 2 NC main circuit: busbar control and auxiliary circuit: screw terminal","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Number Of Holes":"1","at AC-1 maximum":"800 1/h","at AC-2 maximum":"300 1/h","at AC-3 maximum":"750 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw fixing","Full-Scale Value":"1.1","at AC-3e maximum":"750 1/h","Diameter Of Holes":"11 mm","Mounting Position":"+/-22,5° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface; standing, on horizontal mounting surface","Size Of Contactor":"S10","Solid Or Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Vacuum contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 480 V rated value":"180 A","at 50 Hz rated value":"110 ... 127 V","at 500 V rated value":"2 A","at 60 Hz rated value":"110 ... 127 V","at 600 V rated value":"192 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","at 1000 V rated value":"315 kW","For Auxiliary Contacts":"18 ... 14","Width Of Connection Bar":"25 mm","For Main Current Circuit":"Connection bar","at 200/208 V rated value":"60 hp","at 220/230 V rated value":"75 hp","at 460/480 V rated value":"150 hp","at 575/600 V rated value":"200 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"8 kV","Thickness Of Connection Bar":"6 mm","at AC-3 rated value maximum":"1 000 V","at AC in hot operating state":"27 W","at AC-3e rated value maximum":"1 000 V","at AC-4 at 400 V rated value":"195 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"05/01/2012","Design Of The Surge Suppressor":"with varistor","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 500 A (690 V, 100 kA), aM: 400 A (690 V, 50 kA), BS88: 450 A (415 V, 50 kA)","Without Load Current Share Typical":"8.2 W","closing power of magnet coil at DC":"700 W","holding power of magnet coil at DC":"8.2 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG: 500 A (690 V, 100 kA)","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"9 W","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":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"Yes","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":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"500 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"185 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/09e420472a1ea95b77cf2ed87c0063e8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=48730&mlfb=3RT1264-6AF36"},"ai":{"faq":[{"question":"What is the main circuit wire range for this contactor?","answer":"The main circuit accepts stranded cable from 70 mm² up to 240 mm². The control circuit (coil) uses screw-type terminals accepting 2x 0.5–1.5 mm² solid or 2x 0.75–2.5 mm² stranded, with a maximum of 2x 0.75–4 mm²."},{"question":"What are the overall dimensions and mounting clearances?","answer":"Dimensions are 210 mm height, 145 mm width, 206 mm depth. Mounting requires 10 mm clearance above and below, 20 mm in front, and 10 mm to the sides. Fastening is via four 11 mm diameter holes with screw fixing."},{"question":"What is the operating temperature range?","answer":"Operating temperature is -25 to +60 °C. Storage temperature is -55 to +80 °C."},{"question":"What switching frequencies does this contactor support?","answer":"Rated maximum switching rates are 800 ops/h at AC-1, 750 at AC-3 and AC-3e, 300 at AC-2, and 250 at AC-4. Mechanical life is typically 10 million operations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1264-6AF36","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/3RT1264-6AF36 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}}