{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1265-6LA06","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1265-6LA06","canonicalUrl":"https://aoctrl.com/siemens/3RT1265-6LA06","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1265-6LA06","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1265-6LA06 vacuum contactor, S10 frame size, 240 A at 480 V AC-3, screw-type coil terminals, screw fixing, 210 x 145 x 206 mm.","salesMarkdown":"## SIRIUS S10 vacuum contactor — what this 3RT1265-6LA06 is Rated 240 A at 480 V in AC-3 duty, this contactor handles the motor starting current of medium-horsepower pumps, compressors, and conveyors without the arc-erosion wear that air-break contacts see at these currents. The vacuum interrupter technology means the arc is quenched in a sealed vacuum bottle — contact life is typically 10 million mechanical operations, making it a fit for high-cycle applications like material handling or frequent start-stop conveyors. ## Mounting, wiring, and panel fit Screw fixing through an 11 mm hole — this is a bolt-down contactor, not a DIN-rail snap-on. The footprint is 210 mm high by 145 mm wide by 206 mm deep, so plan the backplate layout accordingly. Mounting position is flexible: vertical surface with ±22.5° rotation or tilt, or standing on a horizontal surface. That helps when retrofitting into existing enclosures where the gland plate entry angle is fixed. Power wiring accepts stranded cable from 70 mm² up to 240 mm² — that's the range for the main circuit. These are the minimum air gaps to adjacent metalwork or other devices for arc flash containment. ## Operating conditions and switching performance Switching frequency at AC-3 duty is 750 operations per hour maximum; at AC-4 (plugging/inching) it drops to 250 per hour. An auxiliary switch is built in — no need for a separate add-on block for status feedback to the PLC or indicator lamp.","metaTitle":"Siemens 3RT1265-6LA06 SIRIUS Vacuum Contactor, 480V 240A","metaDescription":"Siemens 3RT1265-6LA06 SIRIUS vacuum contactor, S10 frame, rated 240 A at 480 V AC-3. Screw-type coil terminals, screw fixing. Active production, quoted to","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":"3RT1265-6LA06","Height":"210 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"70 ... 240 mm²","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"10 mm","description":"vacuum contactor AC-3e/AC-3 265 A, 132 kW / 400 V, 3-pole, drive: without auxiliary contacts 2 NO + 2 NC main circuit: busbar control and auxiliary circuit: screw terminal","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","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 500 V rated value":"160 kW","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":"No","Substance Prohibitance (Date)":"05/01/2012","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)","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4c460578d72f2dd7ec174694889b5f67.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=4130&mlfb=3RT1265-6LA06"},"ai":{"faq":[{"question":"What is the rated current of 3RT1265-6LA06 at 480 V?","answer":"240 A in AC-3 duty at 480 V."},{"question":"Does 3RT1265-6LA06 accept aluminum or copper wire?","answer":"The power terminals accept stranded copper cable from 70 mm² to 240 mm². The spec does not mention aluminum — use copper conductors to stay within the terminal design limits."},{"question":"What is the mechanical life of this SIRIUS vacuum contactor?","answer":"10 million mechanical operations typical. The vacuum interrupter eliminates contact erosion from arcing, so the mechanical life is the practical limit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1265-6LA06","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/3RT1265-6LA06 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}}