{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT5056-6AU36","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT5056-6AU36","canonicalUrl":"https://aoctrl.com/siemens/3RT5056-6AU36","factsUrl":"https://aoctrl.com/api/mcp/products/3RT5056-6AU36","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT5056-6AU36, Size S6, 210 kW at 690 V 60 °C, screw terminals, varistor.","salesMarkdown":"## What this SIRIUS S6 contactor carries The Siemens 3RT5056-6AU36 is a SIRIUS power contactor in Size S6, rated for 210 kW at 690 V at 60 °C — that's the headline number for a mill motor driving a fan or pump at 690 V three-phase. At 400 V the same contactor handles 121 kW, and at 230 V it's good for 70 kW. The insulation voltage is 1000 V, so it sits comfortably in a 690 V panel with headroom for transient spikes. The coil is suppressed with a built-in varistor, which saves you wiring an external snubber across the coil terminals. Mounting is screw-fixing with a vertical surface; you can rotate the contactor ±90° or tilt it ±22.5° front-to-back, which helps when the panel layout is tight. ## Integration — panel and wiring Footprint is 172 mm high × 120 mm wide × 170 mm deep. The main circuit uses screw-type terminals accepting 95 mm² at both 40 °C and 60 °C, or AWG 4 to 250 kcmil. That's enough for the power feed to a 210 kW motor.","metaTitle":"Siemens 3RT5056-6AU36 SIRIUS Power Contactor, 210 kW at 690","metaDescription":"Siemens 3RT5056-6AU36 SIRIUS power contactor, Size S6, 210 kW at 690 V 60 °C, 1000 V insulation, screw terminals, varistor. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"170 mm","Width":"120 mm","at AC":"2 000 1/h","at DC":"2 000 1/h","title":"3RT5056-6AU36","Height":"172 mm","at 50 Hz":"0.8","at 60 Hz":"0.8","Rated Value":"240 ... 277 V","description":"Contactor 240...277 V AC/DC AC3 kW 400 V AC (50...60 Hz) / DC operation auxiliary contacts 2 NO + 2 NC, 3-pole, size S6 bar connections conventional operating mechan. screw terminal","During Storage":"-55 ... +80 °C","at AC-1 maximum":"800 1/h","at AC-3 maximum":"750 1/h","at AC-4 maximum":"130 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw fixing","Mounting Position":"with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back","Size Of Contactor":"S6","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Power contactor","at 24 V rated value":"6 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 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 60 Hz rated value":"240 ... 277 V","at 690 V rated value":"65 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"03/01/2017","at 40 °C minimum permissible":"95 mm²","at 60 °C minimum permissible":"95 mm²","Design Of The Surge Suppressor":"with varistor","Insulation Voltage Rated Value":"1 000 V","at 230 V at 60 °C rated value":"70 kW","at 400 V at 60 °C rated value":"121 kW","at 690 V at 60 °C rated value":"210 kW","at AWG cables for main contacts":"4 ... 250 kcmil","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","With Type Of Assignment 2 Required":"fuse gL/gG: 315 A","closing power of magnet coil at DC":"360 W","holding power of magnet coil at DC":"5.2 W","Surge Voltage Resistance Rated Value":"8 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 355 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","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","at ambient temperature 40 °C rated value":"215 A","at ambient temperature 60 °C rated value":"185 A","Type Of Voltage Of The Control Supply Voltage":"AC/DC","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d894dae8d870ae81e9654ef9a7d57d6c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580278&mlfb=3RT5056-6AU36"},"ai":{"faq":[{"question":"What is the power rating of 3RT5056-6AU36 at 690 V?","answer":"At 690 V and 60 °C it is rated for 210 kW. At 400 V and 60 °C it is rated for 121 kW."},{"question":"What compliance documentation does Siemens provide for 3RT5056-6AU36?","answer":"The contactor carries RoHS compliance with a substance prohibitance date of 03/01/2017 and is rated for pollution degree 3 per IEC 60947."},{"question":"Where can I buy 3RT5056-6AU36 and get current pricing?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT5056-6AU36","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/3RT5056-6AU36 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}}