{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1456-6AU36","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1456-6AU36","canonicalUrl":"https://aoctrl.com/siemens/3RT1456-6AU36","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1456-6AU36","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1456-6AU36 contactor, size S6, 240-277 V AC/DC coil with screw-type terminals, 172 x 120 x 170 mm.","salesMarkdown":"The coil accepts a rated control supply voltage of 240 to 277 V, and it operates on either AC or DC (type of voltage AC/DC). This dual-voltage AC/DC coil simplifies panel design when the control voltage could be either — no need to swap coil variants between an AC control transformer and a DC power supply. The coil terminals are screw-type, which is the standard for this frame size and suits panel wiring with ferruled or solid conductors. It includes an auxiliary switch with built-in auxiliary contacts for status feedback or interlocking. The contactor mounts via screw fixing (fastening method) and has a single 9 mm diameter mounting hole. The main circuit accepts stranded conductors from 25 to 120 mm². That's a heavy lug range — you're landing cables sized for a 100 A+ motor circuit, not a small control feeder. The auxiliary circuit uses smaller terminals: solid or stranded 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). This matches typical control wiring sizes. The -25 °C low end means it's usable in unheated enclosures in cold climates, but below that you'd need a cabinet heater. The +60 °C upper limit is typical for contactors in a ventilated panel — if your enclosure runs hotter, you'll need to derate or provide forced cooling. Physical dimensions: height 172 mm, width 120 mm, depth 170 mm. This is a substantial three-pole contactor — plan for the depth when laying out the backplate, especially if using deep cable lugs or a rear-mounted bus system. Clearance to adjacent components: 10 mm upwards and downwards, 10 mm to the side, and 20 mm forward. There is no need to hunt surplus or broker channels. If you are filling a BOM line for a new panel or replacing a failed unit in an existing installation, this is the direct drop-in part.","metaTitle":"Siemens 3RT1456-6AU36 SIRIUS Contactor, S6 Frame, 240-277V A","metaDescription":"Siemens SIRIUS 3RT1456-6AU36 contactor, size S6. 240-277V AC/DC coil, screw terminals. Current production. Sourced to order. Specifications: 172x120x170 mm.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"170 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"120 mm","at AC":"40 ... 60 ms","at DC":"40 ... 60 ms","Height":"172 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"25 ... 120 mm²","at 50 Hz":"0.8","at 60 Hz":"0.8 ... 1.1","Downwards":"10 mm","Attachable":"4","Arcing Time":"10 ... 15 ms","At The Side":"10 mm","Rated Value":"240 ... 277 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Number Of Holes":"1","Type Of Voltage":"AC/DC","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw fixing","Full-Scale Value":"1.1","Diameter Of Holes":"9 mm","Mounting Position":"with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back","Size Of Contactor":"S6","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":"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 50 Hz rated value":"240 ... 277 V","at 500 V rated value":"2 A","at 60 Hz rated value":"240 ... 277 V","at 600 V rated value":"0.1 A","at 690 V rated value":"1 A","Instantaneous Contact":"2","Side-By-Side Mounting":"Yes","Width Of Connection Bar":"17 mm","For Main Current Circuit":"Connection bar","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"8 kV","Thickness Of Connection Bar":"3 mm","at AC in hot operating state":"86.4 W","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":"gR: 350 A (690 V, 100 kA)","Without Load Current Share Typical":"5.2 W","closing power of magnet coil at DC":"360 W","holding power of magnet coil at DC":"5.2 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","operating frequency at AC-1 maximum":"600 1/h","With Type Of Coordination 1 Required":"gG: 355 A (690 V, 100 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"28.8 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","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","Type Of Voltage For Main Current Circuit":"AC","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"2","Type Of Voltage Of The Control Supply Voltage":"AC/DC","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":"140 mm²","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000","Design Of The Miniature Circuit Breaker For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (230 V, 400 A)"}},"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=197694&mlfb=3RT1456-6AU36","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1456-6AU36/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions of the 3RT1456-6AU36?","answer":"Height is 172 mm, width is 120 mm, and depth is 170 mm. Required clearances: 10 mm upwards, 10 mm downwards, 10 mm to the side, and 20 mm forward."},{"question":"What coil voltage does the 3RT1456-6AU36 use?","answer":"It uses a rated control supply voltage of 240 to 277 V, and it operates on both AC and DC. The coil terminals are screw-type."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1456-6AU36","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/3RT1456-6AU36 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}}