{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1056-6NF36-0UA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1056-6NF36-0UA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1056-6NF36-0UA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1056-6NF36-0UA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, Size S6, 3RT1056-6NF36-0UA0, 96-127 VAC coil, screw-type terminals, auxiliary switch, 25-120 mm² main conductor cross-section.","salesMarkdown":"## SIRIUS Size S6 power contactor — 3RT1056-6NF36-0UA0 The magnet coil is rated 96-127 VAC and uses screw-type terminals, which is the standard termination for panel builders who prefer ring or fork lugs over spring-cage connections. Main pole wiring accepts stranded conductors from 25 mm² up to 120 mm², covering the heavy-power side of the S6 frame. An auxiliary switch is included on the contactor, so you do not need to order a separate side-mount block for basic status feedback. The auxiliary contacts are rated 10 A at 24 V, 2 A at 48 V and 60 V, and 1 A at 110 V — these are the switching limits for the built-in auxiliary, not the main pole ratings. Mounting is by screw fixing through a single 9 mm hole, with the contactor body sized at 172 mm high, 120 mm wide, and 170 mm deep. The auxiliary switch wiring accepts solid or stranded conductors: 2x (0.5-1.5 mm²), 2x (0.75-2.5 mm²), or max 2x (0.75-4 mm²). This covers standard control wiring up to 4 mm² for the feedback loop to a PLC or safety relay. ## Operating conditions and switching performance The contactor is rated for switching frequencies up to 750 operations per hour in AC-3 duty (motor starting), 800 ops/h in AC-1 (resistive), 300 ops/h in AC-2, and 130 ops/h in AC-4 (plugging/inching).","metaTitle":"Siemens 3RT1056-6NF36-0UA0 SIRIUS Power Contactor, Size S6,","metaDescription":"Siemens 3RT1056-6NF36-0UA0 SIRIUS power contactor, Size S6 frame. 96-127 VAC coil, screw terminals, auxiliary switch included. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"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":"80 ... 90 ms","at DC":"80 ... 90 ms","Height":"172 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"25 ... 120 mm²","at 50 Hz":"0.6","at 60 Hz":"0.6","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"10 mm","Rated Value":"96 ... 127 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Number Of Holes":"1","at AC-1 maximum":"800 1/h","at AC-2 maximum":"300 1/h","at AC-3 maximum":"750 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":"750 1/h","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":"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":"180 A","at 50 Hz rated value":"96 ... 127 V","at 500 V rated value":"2 A","at 60 Hz rated value":"96 ... 127 V","at 600 V rated value":"192 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","at 1000 V rated value":"90 kW","For Auxiliary Contacts":"18 ... 14","Width Of Connection Bar":"17 mm","For Main Current Circuit":"Connection bar","at 200/208 V rated value":"40 hp","at 220/230 V rated value":"50 hp","at 460/480 V rated value":"100 hp","at 575/600 V rated value":"100 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"8 kV","Thickness Of Connection Bar":"3 mm","at AC-3 rated value maximum":"1 000 V","at AC in hot operating state":"39 W","at AC-3e rated value maximum":"1 000 V","at AC-4 at 400 V rated value":"160 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":"189 A","at AC-5b up to 400 V rated value":"153 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 315 A (690 V, 100 kA), aM: 200 A (690 V, 50 kA), BS88: 315 A (415 V, 50 kA)","Without Load Current Share Typical":"2.8 W","closing power of magnet coil at DC":"320 W","holding power of magnet coil at DC":"2.8 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","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":"13 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","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","Limited To 1 S Switching At Zero Current Maximum":"2 900 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"2 084 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"1 480 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"968 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"801 A; Use minimum cross-section acc. to AC-1 rated value","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":"95 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/48191814343ef1de12d436857500061f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=446952&mlfb=3RT1056-6NF36-0UA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1056-6NF36-0UA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1056-6NF36-0UA0 and get a price?","answer":"This part is sourced through independent distribution channels. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is the coil voltage on this contactor?","answer":"The magnet coil is rated 96-127 VAC with screw-type terminals."},{"question":"What wire sizes does the main power circuit accept?","answer":"The main pole terminals accept stranded conductors from 25 mm² up to 120 mm²."},{"question":"Does this contactor include an auxiliary switch?","answer":"Yes, an auxiliary switch is built in. Its contacts are rated 10 A at 24 V, 2 A at 48 V and 60 V, and 1 A at 110 V."},{"question":"Will 3RT1056-6NF36-0UA0 drop into a panel specified for 3RT1056-1AB36?","answer":"Both are Size S6 SIRIUS contactors with the same mounting footprint (172x120x170 mm, single 9 mm screw hole). The main difference is the coil: the -6NF36-0UA0 has a 96-127 VAC screw-terminal coil, while the -1AB36 uses a different coil voltage and termination. Panel cutouts and busbar positions are identical — no rewiring of the main power path is needed, but the control circuit must match the new coil voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1056-6NF36-0UA0","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/3RT1056-6NF36-0UA0 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}}