{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1076-6AB36","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1076-6AB36","canonicalUrl":"https://aoctrl.com/siemens/3RT1076-6AB36","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1076-6AB36","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1076-6AB36, Size S12, screw fixing, 23-26 V DC coil, 70-240 mm² stranded, 420 ops/h AC-3.","salesMarkdown":"This is a Siemens SIRIUS power contactor, order code 3RT1076-6AB36, in the Size S12 frame. It's a screw-fixed unit with a 23-26 V DC-rated magnet coil terminated to screw-type terminals. The contactor carries an auxiliary switch block, so you get one less add-on to order when building a motor starter. Rated for AC-3 duty at 420 operating cycles per hour, this contactor handles motor switching in conveyors, pumps, and fan starters inside a control panel. The AC-1 resistive rating sits at 500 ops/h, and AC-4 (inching/plugging) at 130 ops/h — that 130 figure is the one to watch if you're reversing or jogging a load repeatedly. Mechanical life is typical 10,000,000 operations, so it's a fit-and-forget part for most medium-duty lines. ## Mounting and wiring reality Mounting position is flexible: vertical surface, rotatable +/-90°, or tiltable +/-22.5° front to back. That buys you options when the backpanel is already crowded. Fastening is screw fixing — four 11 mm holes on a 214 x 160 x 225 mm (H x W x D) footprint. No DIN-rail clip on this frame; you'll need a drill and M8 or similar hardware. That's tighter than some older contactor families — check your existing enclosure depth before committing the BOM line. Power wiring takes stranded cable from 70 to 240 mm² — substantial lugs, so plan for a crimping tool that handles that range. The auxiliary/control wiring accepts solid or stranded 0.5 to 4 mm², with screw terminals. ## Coil and switching performance Coil pick-up and drop-out times are 60-100 ms on both AC and DC supplies. Arcing time is 10-15 ms. The coil's rated operating range is 23-26 V, with a pick-up threshold of 0.8 x rated and a drop-out of 0.9 x rated at both 50 and 60 Hz. That means it holds in down to about 20.7 V and drops out reliably around 23.4 V — tight, so a sagging DC bus could drop it out before a drive faults. Auxiliary contact ratings: 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V. That's enough for a PLC input or a small relay coil, but not for direct solenoid drive at the higher voltages.","metaTitle":"Siemens 3RT1076-6AB36 SIRIUS Power Contactor, Size S12, 420","metaDescription":"Siemens 3RT1076-6AB36 SIRIUS power contactor, Size S12 frame, screw fixing, 23-26 V coil, 70-240 mm² stranded, 420 ops/h AC-3. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"225 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"160 mm","at AC":"60 ... 100 ms","at DC":"60 ... 100 ms","title":"3RT1076-6AB36","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":"23 ... 26 V","description":"power contactor, AC-3e/AC-3 500 A, 250 kW / 400 V AC (50-60 Hz) / DC Uc: 23-26 V 3-pole, auxiliary contacts 2 NO + 2 NC 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":"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 (0,5 ... 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":"477 A","at 50 Hz rated value":"23 ... 26 V","at 500 V rated value":"2 A","at 60 Hz rated value":"23 ... 26 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":"18 ... 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":"screw-type 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":"Screw-type terminals","With Type Of Coordination 1 Required":"gG: 630 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":"55 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":"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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4c09438488c2bb89748ed5e5cbaa8bd7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=317154&mlfb=3RT1076-6AB36"},"ai":{"faq":[{"question":"What are the key mounting dimensions?","answer":"The contactor measures 214 mm high, 160 mm wide, and 225 mm deep. It uses screw fixing with four 11 mm holes. Clearance requirements are 10 mm upwards and downwards, 20 mm forwards, and 10 mm at the sides."},{"question":"What wire sizes does this contactor accept?","answer":"Main power terminals accept stranded cable from 70 to 240 mm². Auxiliary and control wiring terminals accept solid or stranded conductors from 0.5 to 4 mm², with screw-type terminations."},{"question":"What is the coil voltage and operating range?","answer":"The coil is rated for 23-26 V DC. Pick-up threshold is 0.8 x rated value (about 20.7 V), and drop-out is 0.9 x rated value (about 23.4 V) at both 50 and 60 Hz."},{"question":"What is the switching frequency for motor loads?","answer":"AC-3 (motor starting/switching) is rated at 420 operating cycles per hour maximum. AC-1 (resistive) is 500 ops/h, and AC-4 (inching/plugging) is 130 ops/h."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1076-6AB36","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/3RT1076-6AB36 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}}