{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1066-6AF36-3PA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1066-6AF36-3PA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1066-6AF36-3PA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1066-6AF36-3PA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, Size S10, 3RT1066-6AF36-3PA0, 110... 127 V AC 50/60 Hz coil voltage, screw-type terminals for the coil, main circuit: screw terminals, auxiliary switch: 1 NO + 1 NC.","salesMarkdown":"## SIRIUS S10 Power Contactor — 3RT1066-6AF36-3PA0 The Siemens SIRIUS 3RT1066-6AF36-3PA0 is a Size S10 power contactor rated for a 110... 127 V AC 50/60 Hz coil. The coil connection uses screw-type terminals. Mounting is by screw fixing with four 11 mm diameter holes on a 145 mm width and 210 mm height footprint, with a depth of 202 mm. ## Duty-Class Switching Frequency and Contact Ratings Maximum switching frequency varies by duty class: 750 operations per hour at AC-1 (resistive), 500 at AC-3 (normal motor starting), 250 at AC-2 (slip-ring motor), and 130 at AC-4 (plugging/inching). The AC-3e rating also permits 500 operations per hour. The auxiliary switch (1 NO + 1 NC) is rated for 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, and 1 A at 110 V. The coil pick-up voltage factor is 0.8 of rated value (88 V minimum for the 110 V coil), and the full-scale value factor is 1.1 (121 V maximum). ## Panel Integration and Sourcing The S10 frame size and screw-fixing mounting with 11 mm holes suit standard backplate or sub-panel installation. The 202 mm depth must be accommodated in enclosure depth planning, particularly when combined with cable ducts or busbar systems. The main power cable range (70 to 240 mm² stranded) indicates this contactor is sized for higher-current motor circuits, typically above 100 A in AC-3 duty. The auxiliary contact ratings cover 24 V to 110 V control circuits commonly found in PLC and relay logic.","metaTitle":"Siemens 3RT1066-6AF36-3PA0 SIRIUS Power Contactor, Size S10,","metaDescription":"Siemens SIRIUS 3RT1066-6AF36-3PA0 power contactor, Size S10, 110-127 VAC coil, screw terminals. Current lifecycle stage. Sourced to order against RFQ. Depth 202 mm, width 145 mm, h","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"202 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":"3RT1066-6AF36-3PA0","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":"110 ... 127 V","description":"power contactor, AC-3e/AC-3 300 A, 160 kW / 400 V, AC (50-60 Hz) / DC Uc: 110-127 V 3-pole, auxiliary contacts 2 NO + 2 NC permanently mounted drive: conventional 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":"500 1/h","at AC-4 maximum":"130 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":"500 1/h","Diameter Of Holes":"11 mm","Mounting Position":"with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back","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":"Power 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 440 V rated value":"1.4 A","at 480 V rated value":"302 A","at 50 Hz rated value":"110 ... 127 V","at 500 V rated value":"2 A","at 60 Hz rated value":"110 ... 127 V","at 600 V rated value":"289 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","at 1000 V rated value":"132 kW","For Auxiliary Contacts":"18 ... 14","Width Of Connection Bar":"25 mm","For Main Current Circuit":"Connection bar","at 200/208 V rated value":"100 hp","at 220/230 V rated value":"125 hp","at 460/480 V rated value":"250 hp","at 575/600 V rated value":"300 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":"66 W","at AC-2 at 400 V rated value":"160 kW","at AC-3e rated value maximum":"1 000 V","at AC-4 at 400 V rated value":"280 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","at AC-5a up to 690 V rated value":"290 A","at AC-5b up to 400 V rated value":"249 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 400 A (690 V, 100 kA), aM: 315 A (690 V, 50 kA), BS88: 400 A (415 V, 50 kA)","Without Load Current Share Typical":"7.4 W","closing power of magnet coil at DC":"650 W","holding power of magnet coil at DC":"7.4 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":"22 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","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","Limited To 1 S Switching At Zero Current Maximum":"5 524 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"4 579 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"3 153 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"1 883 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"1 445 A; Use minimum cross-section acc. to AC-1 rated value","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":"$590.55","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7359b3afff5377b9c4c296da761090df.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=459447&mlfb=3RT1066-6AF36-3PA0"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT1066-6AF36-3PA0?","answer":"The peer MPN 3RT1266-6AP36-0KA1 is a functionally similar SIRIUS contactor, but it uses a different coil voltage and terminal configuration. Verify coil compatibility and mounting dimensions before substitution."},{"question":"What are the mounting dimensions for 3RT1066-6AF36-3PA0?","answer":"The contactor has a width of 145 mm, height of 210 mm, and depth of 202 mm. It is mounted via screw fixing with four 11 mm diameter holes."},{"question":"What compliance documentation is available for 3RT1066-6AF36-3PA0?","answer":"As a Siemens SIRIUS product, standard documentation includes a datasheet with the specifications listed above. For specific compliance certificates (RoHS, REACH, UL, IEC), refer to the manufacturer's official documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1066-6AF36-3PA0","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/3RT1066-6AF36-3PA0 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}}