{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1054-6PF35","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1054-6PF35","canonicalUrl":"https://aoctrl.com/siemens/3RT1054-6PF35","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1054-6PF35","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1054-6PF35 power contactor, size S6, 96-127 VAC 50/60 Hz coil, screw-type terminals, 170 mm depth, 172 mm height, 140 mm width.","salesMarkdown":"## S6 Frame, 96-127 VAC Coil — What the Ratings Mean for Fit The 3RT1054-6PF35 is a Siemens SIRIUS power contactor in frame size S6, meaning it occupies the physical envelope and terminal footprint of that size class — 172 mm tall, 140 mm wide, 170 mm deep. The coil is rated 96-127 VAC at 50/60 Hz, with a pickup threshold of 0.8 × rated value and a dropout of 0.6 × rated value, so it will hold in on a nominal 110 VAC control circuit but may drop out if the line sags below about 77 VAC. The main power terminals accept stranded cable from 25 mm² up to 120 mm² — that is the range for the load-side wiring. The coil and auxiliary terminals are screw-type, accepting solid or stranded wire: 2× (0.5-1.5 mm²), 2× (0.75-2.5 mm²), or max 2× (0.75-4 mm²). This is a contactor you land with a screwdriver, not a spring-cage tool. ## Switching Duty and Mechanical Life The contactor is rated for different switching frequencies depending on the utilization category: 1 000 operations per hour at AC-3 (motor starting), 800 at AC-1 (resistive), 400 at AC-2 (slip-ring motors), and 130 at AC-4 (plugging/inching). The AC-3e rating also sits at 1 000 ops/h. The mechanical life is 10 million operations typical — that is the contactor body itself, not the contacts under load. Arcing time is 10-15 ms, and the operate time (both AC and DC coil) is 80-90 ms. That gives you a total break time around 90-105 ms from coil de-energization to arc extinction — relevant for coordinating with upstream protection. ## Mounting and Clearance Requirements Mounting is by screw fixing (four 9 mm holes) on a vertical surface. The contactor can be rotated ±90° or tilted ±22.5° front-to-back. Minimum clearances to adjacent parts: 10 mm upwards, 10 mm downwards, 10 mm at the side, and 20 mm forwards. That 20 mm forward clearance is the arc-chute side — respect it to avoid flashover between phases. Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. The full-scale value of 1.1 means the contactor can be operated at 110% of rated voltage continuously — but check the coil thermal limit if the ambient is at the high end. ## Auxiliary Contacts and Coil Options The contactor is equipped with an auxiliary switch block. The auxiliary contact ratings are: 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, and 1 A at 110 V — all at the rated value. These are the dry switching limits; derate for inductive loads. The coil termination is screw-type, and the coil itself is rated for continuous duty at 96-127 VAC. The initial pickup value is 0.8 × rated, so at 96 V nominal the pickup threshold is about 77 V.","metaTitle":"Siemens 3RT1054-6PF35 SIRIUS Power Contactor, S6","metaDescription":"Siemens 3RT1054-6PF35 SIRIUS power contactor, size S6, 96-127 VAC 50/60 Hz coil. Screw-type terminals, 170 mm depth. Current production. Quoted to order.","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":"140 mm","at AC":"80 ... 90 ms","at DC":"80 ... 90 ms","title":"3RT1054-6PF35","Height":"172 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"25 ... 120 mm²","at 50 Hz":"0.6","at 60 Hz":"0.6","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"10 mm","Rated Value":"96 ... 127 V","description":"power contactor, AC-3e/AC-3 115 A, 55 kW / 400 V, AC (50-60 Hz) / DC Uc: 96-127 V PLC input 24 V DC 3-pole, auxiliary contacts 1 NO + 1 NC drive: electronic main circuit: busbar control and auxiliary circuit: screw terminal, remaining lifetime signal","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Number Of Holes":"1","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","Full-Scale Value":"1.1","at AC-3e maximum":"1 000 1/h","Diameter Of Holes":"9 mm","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 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","Side-By-Side Mounting":"Yes","at 1000 V rated value":"75 kW","For Auxiliary Contacts":"18 ... 14","Width Of Connection Bar":"17 mm","For Main Current Circuit":"Connection bar","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","Thickness Of Connection Bar":"3 mm","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":"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":"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)","Without Load Current Share Typical":"2.8 W","closing power of magnet coil at DC":"320 W","holding power of magnet coil at DC":"2.8 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG: 355 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":"7 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","voltage at PLC-control input rated value":"24 V","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":"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","type of PLC-control input according to IEC 60947-1":"Type 2","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","operating range factor of the voltage at PLC-control input":"0.8 ... 1.1","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)","for short-circuit protection of the RLT relay output required":"miniature fuse: 4 A FF (230 V, Ik= 400 A)","minimum cross-section in main circuit at maximum AC-1 rated value":"70 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1","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=351344&mlfb=3RT1054-6PF35"},"ai":{"faq":[{"question":"What size cable does the main power terminal accept?","answer":"The main power terminals accept stranded cable from 25 mm² up to 120 mm². The coil and auxiliary terminals accept solid or stranded wire: 2× (0.5-1.5 mm²), 2× (0.75-2.5 mm²), or max 2× (0.75-4 mm²), all screw-type."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1054-6PF35","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/3RT1054-6PF35 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}