{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1076-2XB46-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1076-2XB46-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT1076-2XB46-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1076-2XB46-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, Power contactor, 3RT1076-2XB46-0LA2, Size S12, 24 V DC coil, screw fixing, auxiliary switch included.","salesMarkdown":"The 24 V DC coil is the control voltage you need to budget for in your 24 VDC control supply. It mounts via screw fixing with a single 11 mm hole, and the vertical mounting surface can be rotated ±90° or tilted ±22.5° front-to-back, giving you flexibility in tight enclosures. The contactor carries switching frequency ratings by duty class: 500 operations/hour at AC-1 (resistive), 420 at AC-3 (motor starting), and 130 at AC-4 (plugging/inching). That AC-3 figure of 420 ops/hour is the one to check against your application cycle rate — if your conveyor starts every 8 seconds, you're at 450 ops/hour and this contactor won't keep up. For the auxiliary switch, DC current ratings are given per voltage: 6 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V. If you're switching a 24 VDC pilot light drawing 0.5 A, that's fine — but if you're switching a 48 VDC solenoid pulling 2.5 A, you're over the rating. ## Integration and Mounting Considerations Dimensions are 214 mm high, 160 mm wide, 225 mm deep. The screw-fix mounting uses one 11 mm hole. Conductor cross-sections accepted: 2x 0.25 to 2.5 mm² solid or stranded. This is a panel-mount part, not DIN-rail — plan your backplate layout accordingly.","metaTitle":"Siemens 3RT1076-2XB46-0LA2 SIRIUS Power Contactor, 24 VDC, S","metaDescription":"Siemens SIRIUS 3RT1076-2XB46-0LA2 power contactor. 24 VDC coil, Size S12 frame, screw fixing. Current production stage. Sourced to order against an RFQ.","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 DC":"80 ... 100 ms","title":"3RT1076-2XB46-0LA2","Height":"214 mm","Upwards":"10 mm","Forwards":"20 mm","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"10 mm","Rated Value":"24 V","description":"power contactor, AC-3e/AC-3 500 A, 250 kW / 400 V Uc: 24 V DC x (0.7-1.25) PLC input 24-110 V DC 3-pole, auxiliary contacts 2 NO + 2 NC drive: electronic main circuit: busbar control and auxiliary circuit: spring-loaded terminal extended rated condition railroad IEC 60077","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Number Of Holes":"1","Type Of Voltage":"DC","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","at DC-1 maximum":"250 1/h","at DC-3 maximum":"200 1/h","at DC-5 maximum":"200 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-40 ... +70 °C","Fastening Method":"screw fixing","Full-Scale Value":"1.25","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":"6 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 500 V rated value":"2 A","at 600 V rated value":"472 A","at 690 V rated value":"148 kW","Design Of The Product":"With extended operating range","Instantaneous Contact":"2","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":"screw-type terminals","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","at AC-2 at AC-3e maximum":"170 1/h","Relative Humidity Minimum":"10 %","at maximum Ith rated value":"370 mm²","Of Main Circuit Rated Value":"8 kV","Thickness Of Connection Bar":"6 mm","at AC-3 rated value maximum":"1 000 V","at maximum AC-1 rated value":"370 mm²","at AC in hot operating state":"165 W","at AC-2 at 400 V rated value":"250 kW","at AC-3e rated value maximum":"1 000 V","at AC-4 at 400 V rated value":"430 A","Substance Prohibitance (Date)":"09/06/2016","Design Of The Surge Suppressor":"with varistor","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","Product Function Bus 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":"3.6 W","closing power of magnet coil at DC":"800 W","holding power of magnet coil at DC":"3.6 W","With Type Of Coordination 1 Required":"gG: 630 A (690 V, 100 kA)","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"55 W","number of NC contacts for main contacts":"0","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","voltage at PLC-control input rated value":"24 V","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"2","Type Of Voltage Of The Control Supply Voltage":"DC","up to 40 °C according to IEC 60077 rated value":"610 A","up to 70 °C according to IEC 60077 rated value":"475 A","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)","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/747baca408945b7af2788c4dfd3245d0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=725764&mlfb=3RT1076-2XB46-0LA2"},"ai":{"faq":[{"question":"What are the key physical dimensions of this contactor?","answer":"Height is 214 mm, width is 160 mm, depth is 225 mm. It requires 10 mm clearance upwards, downwards, and to the sides, and 20 mm forwards. Mounting is via screw fixing with a single 11 mm hole."},{"question":"What conductor sizes does the 3RT1076-2XB46-0LA2 accept?","answer":"It accepts 2x 0.25 to 2.5 mm² solid or stranded conductors on the power terminals."},{"question":"What is the coil voltage for this contactor?","answer":"The coil is rated 24 V DC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1076-2XB46-0LA2","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/3RT1076-2XB46-0LA2 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}}