{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1265-6AR36","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1265-6AR36","canonicalUrl":"https://aoctrl.com/siemens/3RT1265-6AR36","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1265-6AR36","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS vacuum contactor, size S10, order code 3RT1265-6AR36, rated 440-480 V, screw fixing, 206 mm depth.","salesMarkdown":"## What this SIRIUS vacuum contactor is Vacuum contactors use a sealed vacuum interrupter to extinguish the arc, which means no arc chute maintenance and a clean break even on high-inductance loads. The rated voltage range is 440 to 480 V, so it fits standard 480 V three-phase distribution in North America and 400/440 V systems elsewhere. The S10 frame size tells you the physical envelope and the current-carrying capacity of the main poles. Main power lugs accept stranded cable from 70 to 240 mm² — that's a heavy lug range, sized for feeders up to several hundred amps depending on duty class. The auxiliary contact block is present (Auxiliary Switch: Yes), so you get a set of N.O./N.C. mirrors for feedback or interlocking without adding a separate side-mount block. Mounting is by screw fixing — not DIN-rail snap-on — so plan for drilled holes in the backplate or mounting channel. The fastening method uses one hole of 11 mm diameter. That's tighter than some contactors, so check your enclosure layout. Dimensions: 210 mm high, 145 mm wide, 206 mm deep. That depth is the body plus the arc chamber; factor in wiring space behind the panel.","metaTitle":"Siemens 3RT1265-6AR36 SIRIUS Vacuum Contactor, S10 Size, 440","metaDescription":"Siemens SIRIUS 3RT1265-6AR36 vacuum contactor, size S10. Rated 440-480 V AC. Screw fixing, 206 mm depth. Current lifecycle stage. Sourced to order against RFQ.","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","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":"440 ... 480 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Number Of Holes":"1","at AC-1 maximum":"750 1/h","at AC-2 maximum":"250 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":"240 A","at 50 Hz rated value":"440 ... 480 V","at 500 V rated value":"2 A","at 60 Hz rated value":"440 ... 480 V","at 600 V rated value":"242 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","at 1000 V rated value":"355 kW","For Auxiliary Contacts":"18 ... 14","Width Of Connection Bar":"25 mm","For Main Current Circuit":"Connection bar","at 200/208 V rated value":"75 hp","at 220/230 V rated value":"100 hp","at 460/480 V rated value":"200 hp","at 575/600 V rated value":"250 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":"36 W","at AC-3e rated value maximum":"1 000 V","at AC-4 at 400 V rated value":"230 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)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"12 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=61195&mlfb=3RT1265-6AR36","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1265-6AR36/alternatives.json"},"ai":{"faq":[{"question":"What are the main power lug wire ranges?","answer":"Main power lugs accept stranded cable from 70 to 240 mm². That's a heavy-duty range, suitable for feeders up to several hundred amps depending on the duty class."},{"question":"Does this contactor include auxiliary contacts?","answer":"Yes. The auxiliary switch is present, providing built-in N.O./N.C. contacts for feedback or interlocking without an add-on block."},{"question":"What are the clearance distances needed around this contactor?","answer":"Minimum clearances: 10 mm upwards, 10 mm downwards, 20 mm forwards, and 10 mm at the side. These are tighter than some contactors, so verify your enclosure layout."},{"question":"What is the mechanical life rating?","answer":"Mechanical life is listed at 10,000,000 operations typical. This is the mechanical endurance, not the electrical endurance under load, but it indicates suitability for high-cycle applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1265-6AR36","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/3RT1265-6AR36 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}}