{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1076-2AT36","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1076-2AT36","canonicalUrl":"https://aoctrl.com/siemens/3RT1076-2AT36","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1076-2AT36","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S12, order code 3RT1076-2AT36, 575-600 V AC coil, screw fixing, spring-type coil terminals.","salesMarkdown":"The coil connection uses spring-type terminals, while the main power circuit accepts stranded conductors from 70 to 240 mm². A built-in auxiliary switch is included, rated 10 A at 24 V, 2 A at 48 V or 60 V, and 1 A at 110 V — enough for signaling back to a PLC input or a status lamp without an add-on block. Mounting is by screw fixing through a single 11 mm hole — not DIN-rail snap-on, so plan for a drilled backplate or mounting rail adapter. Dimensions are 214 mm high, 160 mm wide, 225 mm deep. Minimum clearances: 10 mm upward, 20 mm forward, 10 mm downward, 10 mm to the side. These are the air and creepage distances for heat dissipation and arc quenching — respect them in the layout. The contactor is rated for use in a standard ventilated enclosure; no forced cooling is required at the lower end of the load cycle. Switching frequency varies by duty class: AC-1 (resistive) allows up to 500 operations per hour, AC-3 (squirrel-cage motor starting) allows 420 per hour, AC-4 (plugging/inching) drops to 130 per hour. AC-2 (slip-ring motor) is rated at 170 per hour. These are maximums — derate for higher ambient or heavier loads. The coil pick-up and drop-out range is 0.8 to 1.1 times rated voltage, so the coil holds in reliably down to 460 V on a 575 V system. Power factor at 50 Hz and 60 Hz is 0.9 — typical for a large AC contactor coil, meaning the inrush current is moderate. The closest functional peer is the 3RT1076-2NP36, which shares the same S12 frame size and screw-fixing mount but uses a different coil voltage. Verify coil compatibility before substituting — the 2AT36 is a 575-600 V AC coil variant, while the 2NP36 is a different coil voltage. The physical footprint and main circuit ratings are identical, so a panel swap is possible if the control voltage matches.","metaTitle":"Siemens 3RT1076-2AT36 SIRIUS Power Contactor, S12, 575-600 V","metaDescription":"Siemens 3RT1076-2AT36 SIRIUS power contactor, size S12, 575-600 V AC coil, screw fixing, spring-type coil terminals, 10 A at 24 V auxiliary contacts. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"225 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"160 mm","at AC":"60 ... 100 ms","at DC":"60 ... 100 ms","Height":"214 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":"575 ... 600 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","Number Of Holes":"1","at AC-1 maximum":"500 1/h","at AC-2 maximum":"170 1/h","at AC-3 maximum":"420 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":"420 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":"S12","Solid Or Stranded":"2x (0,25 ... 2,5 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":"477 A","at 50 Hz rated value":"575 ... 600 V","at 500 V rated value":"2 A","at 60 Hz rated value":"575 ... 600 V","at 600 V rated value":"472 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","at 1000 V rated value":"250 kW","For Auxiliary Contacts":"24 ... 14","Width Of Connection Bar":"25 mm","For Main Current Circuit":"Connection bar","at 200/208 V rated value":"150 hp","at 220/230 V rated value":"200 hp","at 460/480 V rated value":"400 hp","at 575/600 V rated value":"500 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":"165 W","at AC-3e rated value maximum":"1 000 V","at AC-4 at 400 V rated value":"430 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":"536 A","at AC-5b up to 400 V rated value":"415 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 500 A (690 V, 100 kA), aM: 500 A (690 V, 50 kA), BS88: 500 A (415 V, 50 kA)","Without Load Current Share Typical":"10 W","closing power of magnet coil at DC":"920 W","holding power of magnet coil at DC":"10 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 630 A (690 V, 100 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"55 W","for AWG cables for auxiliary contacts":"2x (24 ... 14)","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 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","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type Of Voltage Of The Control Supply Voltage":"AC/DC","Limited To 1 S Switching At Zero Current Maximum":"7 484 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"7 484 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"5 978 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"3 765 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"2 887 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":"370 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/0efa3d834a7e507354d4ed92c8fdc54c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=427655&mlfb=3RT1076-2AT36","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1076-2AT36/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT1076-2AT36?","answer":"The 3RT1076-2NP36 is the closest functional peer — same S12 frame size, same screw-fixing mount, same main circuit ratings. The difference is the coil voltage: the 2AT36 uses 575-600 V AC, while the 2NP36 uses a different coil voltage. Verify control voltage before substituting."},{"question":"What are the key dimensions of 3RT1076-2AT36?","answer":"Height 214 mm, width 160 mm, depth 225 mm. Mounting by screw fixing through a single 11 mm hole. Minimum clearances: 10 mm upward, 20 mm forward, 10 mm downward, 10 mm to the side."},{"question":"What conductor sizes does the main circuit accept?","answer":"Stranded conductors from 70 to 240 mm². The coil connection uses spring-type terminals accepting 2x (0.25 to 2.5 mm²) solid or stranded."},{"question":"Will 3RT1076-2AT36 drop into a panel specified around 3RT1076-2NP36 without rewiring?","answer":"Physically yes — same S12 frame, same screw-fixing hole pattern, same dimensions. The main power circuit wiring is identical. However, the coil voltage differs: the 2AT36 needs 575-600 V AC, while the 2NP36 uses a different coil voltage. If the control transformer and wiring are already sized for 575-600 V, the swap is a direct drop-in. If not, the coil circuit must be re-terminated."},{"question":"What compliance documentation is available for 3RT1076-2AT36?","answer":"As a Siemens SIRIUS product, it is typically supplied with CE, UL, CSA, and RoHS declarations. Specific certificates should be available from Siemens Industry Online Support or the distributor upon request. The evidence does not list individual approvals for this exact order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1076-2AT36","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/3RT1076-2AT36 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}}