{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1054-1QF35","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1054-1QF35","canonicalUrl":"https://aoctrl.com/siemens/3RT1054-1QF35","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1054-1QF35","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, Power contactor, S6 size, 3RT1054-1QF35, 96-127 VAC coil, screw-type terminals, IP20 front protection.","salesMarkdown":"## Siemens SIRIUS 3RT1054-1QF35 — what this power contactor is and what it handles It carries a 96-127 VAC coil and uses screw-type terminals on both the main circuit and the magnet coil, which is the standard fit for panel builders who prefer screw terminations over spring-cage for high-current connections. The main circuit accepts stranded conductors from 16 to 70 mm², so it lands comfortably on a motor branch circuit up to that wire gauge. The auxiliary switch is included as standard, saving an add-on order for basic feedback. ## Switching duty and operating rates — matching the contactor to the load profile The 3RT1054-1QF35 is rated for different switching frequencies depending on the duty category. At AC-3 (standard motor starting) it handles up to 1,000 operations per hour; at AC-1 (resistive loads) it is rated for 800 ops/h; at AC-2 (slip-ring motors) it drops to 400 ops/h; and at AC-4 (plugging/inching) it is limited to 130 ops/h. Switching times are 80-90 ms for both AC and DC operation, with arcing time of 10-15 ms. ## Mounting, clearances, and environmental limits Mounting is by screw fixing on a vertical surface, with the contactor rotatable ±90° and tiltable ±22.5° to the front and back. This gives flexibility for tight enclosures where the DIN rail is not perfectly aligned. Dimensions are 172 mm height, 140 mm width, and 170 mm depth.","metaTitle":"Siemens SIRIUS 3RT1054-1QF35 Power Contactor, 96-127 VAC Coi","metaDescription":"Siemens SIRIUS 3RT1054-1QF35 power contactor, S6 frame, 96-127 VAC coil, screw terminals, IP20 front, 10M mechanical cycles. Current lifecycle stage. Sourced to order.","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":"140 mm","at AC":"80 ... 90 ms","at DC":"80 ... 90 ms","title":"3RT1054-1QF35","Height":"172 mm","Maximum":"2 000 m","Upwards":"10 mm","Forwards":"20 mm","Stranded":"16 ... 70 mm²","at 50 Hz":"0.5","at 60 Hz":"0.8 ... 1.1","Downwards":"10 mm","Arcing time":"10 ... 15 ms","At The Side":"10 mm","Rated Value":"96 ... 127 V","description":"Power contactor, AC-3 115 A, 55 kW / 400 V AC (50-60 Hz) / DC operation 96-127 V UC Auxiliary contacts 1 NO + 1 NC 3-pole, Size S6 with box terminals Drive: electronic with AS-Interface and RLT signal","On The Front":"IP20; IP20 on the front with cover / box terminal","Initial Value":"0.8","Mounting type":"screw fixing","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Of The Terminal":"IP00","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 ... +55 °C","Full-scale value":"1.1","Mounting position":"with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back","Size of contactor":"S6","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 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":"125 A","at 690 V rated value":"1 A","Instantaneous Contact":"1","Side-by-side mounting":"Yes","at 1000 V rated value":"75 kW","For Auxiliary Contacts":"18 ... 14","For Main Current Circuit":"box terminal","Single Or Multi-Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)","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","Of Main Circuit Rated Value":"8 kV","at AC-3 rated value maximum":"1 000 V","at maximum AC-1 rated value":"70 mm²","at AC-2 at 400 V rated value":"55 kW","at AC-4 at 400 V rated value":"97 A","Design of the surge suppressor":"with varistor","at 230 V at 60 °C rated value":"53 kW","at 400 V at 60 °C rated value":"92 kW","at 690 V at 60 °C rated value":"159 kW","at 1000 V at 60 °C rated value":"131 kW","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","Function Module For Communication":"No","Closing power of magnet coil at DC":"320 W","Holding power of magnet coil at DC":"2.8 W","Operating current at AC-12 maximum":"10 A","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","Protection against electrical shock":"finger-safe when touched vertically from front acc. to IEC 60529","at AWG conductors for main contacts":"2x 1/0","Mirror contact acc. to IEC 60947-4-1":"Yes","With Type Of Coordination 1 Required":"gG: 355 A (690 V, 100 kA)","Reference code acc. to DIN EN 81346-2":"Q","with high demand rate acc. to SN 31920":"1 000 000","Number of NO contacts for main contacts":"3","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","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"160 A","Finely Stranded Without Core End Processing":"16 ... 70 mm²","Type of voltage of the control supply voltage":"AC/DC","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","between coil and main contacts acc. to EN 60947-1":"690 V","positively driven operation acc. to IEC 60947-5-1":"No","Contact rating of auxiliary contacts according to UL":"A600 / Q600","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","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","Of The Contactor With Added Electronics-Compatible 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=167262&mlfb=3RT1054-1QF35"},"ai":{"faq":[{"question":"What is the closest functional second-source to the 3RT1054-1QF35?","answer":"The closest functional peer is the 3RT1054-6QP35, which shares the same S6 frame size and screw-terminal design but differs in coil voltage. The 3RT1054-1QF35 uses a 96-127 VAC coil; verify your control voltage before substituting."},{"question":"What is the depth of the 3RT1054-1QF35?","answer":"The depth is 170 mm, measured from the mounting surface to the front of the contactor with the cover or box terminal installed."},{"question":"What wire sizes does the auxiliary switch accept on the 3RT1054-1QF35?","answer":"The auxiliary switch terminals accept solid conductors: 2x (0.5-1.5 mm²), 2x (0.75-2.5 mm²), and max 2x (0.75-4 mm²)."},{"question":"Will the 3RT1054-1QF35 drop into a panel wired for the 3RT1054-6QP35?","answer":"Yes, the mechanical footprint and terminal layout are identical — both are S6 frame, screw-type terminals, same mounting hole pattern and clearances. The only difference is the coil voltage: 96-127 VAC on the -1QF35 versus the coil of the -6QP35. No rewiring of the power circuit is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1054-1QF35","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/3RT1054-1QF35 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}}