{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1054-1LA06","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1054-1LA06","canonicalUrl":"https://aoctrl.com/siemens/3RT1054-1LA06","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1054-1LA06","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S6, 3RT1054-1LA06, 124 A at 480 V, screw fixing, auxiliary switch included.","salesMarkdown":"The Siemens 3RT1054-1LA06 is a SIRIUS power contactor in size S6, rated for switching motor loads up to 124 A at 480 V (AC-3 duty). The contactor also carries a 25 hp rating at 230 V, giving a quick cross-check for North American panel specs. Mechanical life is listed at 10,000,000 operations typical, with an AC-3 switching rate up to 1,000 cycles per hour. That means it's built for continuous-duty panels where the contactor cycles several times a minute — not just a start-stop once a shift. The auxiliary switch (included) handles pilot-duty loads: 10 A at 24 V, 2 A at 48/60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 3 A at 400 V, 1.4 A at 440 V, 2 A at 500 V. Fastening is screw fixing (not DIN rail), so plan for a drilled backplate or mounting channel. Those are minimum air gaps for arc containment and heat dissipation; crowding them shortens contact life. Main power terminals accept stranded wire from 16 to 70 mm² — that's a heavy cable range, consistent with the 124 A rating. The coil terminals are screw-type, and the auxiliary terminals accept solid or stranded: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). Strip and torque per the nameplate; the spring-cage variants in the same family use a different termination feel. ## Operating conditions Switching frequency varies by duty: AC-1 max 800 cycles/h, AC-2 max 400, AC-3 max 1,000, AC-4 max 130.","metaTitle":"Siemens 3RT1054-1LA06 SIRIUS Power Contactor, 124 A at 480 V","metaDescription":"Siemens SIRIUS 3RT1054-1LA06 power contactor, size S6, 124 A at 480 V, screw fixing, auxiliary switch included. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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":"40 ... 60 ms","at DC":"40 ... 60 ms","title":"3RT1054-1LA06","Height":"172 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"16 ... 70 mm²","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"10 mm","description":"power contactor, AC-3e/AC-3 115 A, 55 kW / 400 V, without operating mechanism 3-pole, auxiliary contacts 2 NO + 2 NC drive: conventional main circuit: box terminal control and auxiliary circuit: screw terminal","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-1 maximum":"800 1/h","at AC-2 maximum":"400 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"130 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw fixing","at AC-3e maximum":"1 000 1/h","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":"25 hp","at 400 V rated value":"3 A","at 440 V rated value":"1.4 A","at 480 V rated value":"124 A","at 500 V rated value":"2 A","at 600 V rated value":"125 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","at 1000 V rated value":"75 kW","For Auxiliary Contacts":"18 ... 14","For Main Current Circuit":"box terminal","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":"125 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"8 kV","at AC-3 rated value maximum":"1 000 V","at AC in hot operating state":"21 W","at AC-3e rated value maximum":"1 000 V","at AC-4 at 400 V rated value":"97 A","safety-related switching OFF":"No","Substance Prohibitance (Date)":"05/01/2012","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"140 A","at AC-5b up to 400 V rated value":"95 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 250 A (690 V, 100 kA), aM: 200 A (690 V, 50 kA), BS88: 250 A (415 V, 50 kA)","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":"7 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","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":"16 ... 70 mm²","Limited To 1 S Switching At Zero Current Maximum":"2 565 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"1 654 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"1 170 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"729 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"572 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":"70 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/48191814343ef1de12d436857500061f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=59518&mlfb=3RT1054-1LA06"},"ai":{"faq":[{"question":"What is 3RT1054-1LA06's listed depth?","answer":"The depth is 170 mm."},{"question":"What wire sizes does the auxiliary terminal accept?","answer":"The auxiliary terminals accept solid or stranded wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1054-1LA06","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/3RT1054-1LA06 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}}