{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1056-6QF35","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1056-6QF35","canonicalUrl":"https://aoctrl.com/siemens/3RT1056-6QF35","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1056-6QF35","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1056-6QF35, S6 frame size, 160 A at 24 V rated value, coil 96-127 V, screw fixing, IP20 front with cover.","salesMarkdown":"## 160 A power contactor with 96-127 V coil — SIRIUS S6 frame The 3RT1056-6QF35: This is a SIRIUS-branded power contactor in the S6 frame size, rated 160 A at 24 V (the rated operational current for the main poles). The magnet coil is screw-type terminals and accepts 96-127 V AC/DC — a common control voltage range for industrial panels running 110-120 V control transformers. The 160 A rating at 24 V is the thermal current; for motor switching duty (AC-3), the contactor handles up to 750 switching operations per hour, and for resistive loads (AC-1) up to 800 operations per hour. The arcing time sits at 10-15 ms, which is typical for a contactor of this frame size and keeps contact erosion predictable in repetitive cycling. ## Termination range and panel fit — 25-120 mm² power, solid aux The main power terminals accept stranded conductors from 25 mm² up to 120 mm² — that covers everything from a 50 mm² motor feed to a 95 mm² bus drop. The auxiliary circuit terminals handle solid wire from 0.5 mm² to 4 mm² (two conductors per clamp), which is the standard range for control wiring in a panel. Mounting is screw fixing (not DIN rail snap-on), so plan for drilled holes and a backplate. Clearances: 10 mm downward, 10 mm sideways, 20 mm forward, 10 mm upward — these are the minimum air gaps to maintain the rated thermal performance and arc-quenching. The enclosure is IP00 on the body (no protection against dust ingress on the live parts), but IP20 on the front when the supplied cover or box terminal is fitted — that is touch-safe for the operator side of the panel. ## Auxiliary switch included — one less SKU to order This contactor ships with an auxiliary switch block integrated (yes/no field confirmed as Yes). That means you do not need to order a separate side-mount aux contact for basic status feedback or interlocking — it is already on the contactor.","metaTitle":"Siemens 3RT1056-6QF35 SIRIUS Power Contactor, 160 A","metaDescription":"Siemens 3RT1056-6QF35 SIRIUS power contactor, S6 frame, 160 A at 24 V rated value, coil 96-127 V AC/DC. Active production, 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":"3RT1056-6QF35","Height":"172 mm","Maximum":"2 000 m","Upwards":"10 mm","Forwards":"20 mm","Stranded":"25 ... 120 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-3 185 A, 90 kW / 400 V AC (50-60 Hz) / DC operation 96-127 V UC Auxiliary contacts 1 NO + 1 NC 3-pole, Size S6 Busbar connections Drive: electronic with AS-Interface and RLT signal","On The Front":"IP00; 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":"300 1/h","at AC-3 maximum":"750 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":"160 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":"30 hp","at 400 V rated value":"45 kW","at 440 V rated value":"1.4 A","at 480 V rated value":"180 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":"192 A","at 690 V rated value":"1 A","Instantaneous Contact":"1","Side-by-side mounting":"Yes","at 1000 V rated value":"90 kW","For Auxiliary Contacts":"18 ... 14","For Main Current Circuit":"Connection bar","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":"60 hp","at 220/230 V rated value":"75 hp","at 460/480 V rated value":"150 hp","at 575/600 V rated value":"200 hp","Of Main Circuit Rated Value":"8 kV","at AC-3 rated value maximum":"1 000 V","at maximum AC-1 rated value":"95 mm²","at AC-2 at 400 V rated value":"90 kW","at AC-4 at 400 V rated value":"160 A","Design of the surge suppressor":"with varistor","at 230 V at 60 °C rated value":"70 kW","at 400 V at 60 °C rated value":"121 kW","at 690 V at 60 °C rated value":"210 kW","at 1000 V at 60 °C rated value":"165 kW","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"189 A","at AC-5b up to 400 V rated value":"153 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: 315 A (690 V, 100 kA), aM: 200 A (690 V, 100 kA), BS88: 315 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":"4 ... 250 kcmil","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":"215 A","Thermal short-time current limited to 10 s":"1 480 A","Type of voltage of the control supply voltage":"AC/DC","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=15082&mlfb=3RT1056-6QF35"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1056-6QF35","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/3RT1056-6QF35 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}}