{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1265-6NB36","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1265-6NB36","canonicalUrl":"https://aoctrl.com/siemens/3RT1265-6NB36","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1265-6NB36","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, vacuum contactor, size S10, order code 3RT1265-6NB36, coil 21-27.3 VDC, screw-type coil terminals, screw fixing, 210 x 145 x 206 mm.","salesMarkdown":"Vacuum interrupters keep the arc contained, so the contactor handles higher switching frequencies than an equivalent air-break unit — rated up to 750 operations per hour in AC-3 duty and 250 per hour in AC-4. The coil pulls in on a 21 to 27.3 VDC supply, with screw-type terminals for the magnet coil. Operating delay is 80 to 100 ms on both pickup and dropout, regardless of AC or DC supply to the coil circuit. Panel mounting is via screw fixing through four 11 mm holes, with a footprint of 210 mm high by 145 mm wide and a depth of 206 mm. ## Power Circuit Termination Main power conductors land on terminals accepting stranded cable from 70 mm² up to 240 mm² — sized for the full rated current of the S10 frame. Auxiliary control wiring uses solid or stranded conductors: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or a maximum of 2x 0.75 to 4 mm². The built-in auxiliary switch is rated for 10 A at 24 V, 2 A at 48 V and 60 V, and 1 A at 110 V — all at the respective rated values. These are the contact ratings for the auxiliary block, not the main poles. The contactor is rated for 10 million typical mechanical operations.","metaTitle":"Siemens SIRIUS 3RT1265-6NB36 Vacuum Contactor, S10, 206 mm D","metaDescription":"Siemens SIRIUS 3RT1265-6NB36 vacuum contactor, size S10. Coil 21-27.3 VDC, screw terminals. Screw fixing, 210x145x206 mm. Current production. 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":"80 ... 100 ms","at DC":"80 ... 100 ms","title":"3RT1265-6NB36","Height":"210 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"70 ... 240 mm²","at 50 Hz":"0.4","at 60 Hz":"0.4","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"10 mm","Rated Value":"21 ... 27.3 V","description":"vacuum contactor AC-3e/AC-3 265 A, 132 kW / 400 V, 3-pole, Uc: 21-27.3 V AC(50-60 Hz) / DC PLC input 24 V DC drive: electronic 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":"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":"21 ... 27.3 V","at 500 V rated value":"2 A","at 60 Hz rated value":"21 ... 27.3 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":"3.4 W","closing power of magnet coil at DC":"630 W","holding power of magnet coil at DC":"3.4 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":"12 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","voltage at PLC-control input rated value":"24 V","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","type of PLC-control input according to IEC 60947-1":"Type 2","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","operating range factor of the voltage at PLC-control input":"0.8 ... 1.1","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/db53a32564dcb554657d31baa7ff90e1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=526524&mlfb=3RT1265-6NB36"},"ai":{"faq":[{"question":"What is the depth of the 3RT1265-6NB36 contactor?","answer":"The depth is 206 mm."},{"question":"What wire sizes does the 3RT1265-6NB36 accept for control wiring?","answer":"The auxiliary terminals accept solid or stranded conductors: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or a maximum of 2x 0.75 to 4 mm²."},{"question":"How do I get current pricing and availability for 3RT1265-6NB36?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the coil voltage range for 3RT1265-6NB36?","answer":"The rated coil voltage range is 21 to 27.3 VDC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1265-6NB36","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/3RT1265-6NB36 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}}