{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1035-3AF08-0PA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1035-3AF08-0PA3","canonicalUrl":"https://aoctrl.com/siemens/3RT1035-3AF08-0PA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1035-3AF08-0PA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S2, 3RT1035-3AF08-0PA3, 22 kW at 500 V AC-3, screw-type terminals, 115 mm depth, 85 mm width.","salesMarkdown":"The Siemens 3RT1035-3AF08-0PA3 is a SIRIUS power contactor in Size S2, rated for motor switching at 22 kW at 500 V AC-3 and 11.4 kW at 690 V AC-3. For heavy inching and plugging duty (AC-4), it handles 35 A at 400 V. The screw-type main circuit terminals accept 2x (0.75...25 mm²) stranded or 2x (0.25...2.5 mm²) solid wire, with a minimum permissible cross-section of 16 mm² at 40 °C. Pollution degree 3 suits industrial environments with conductive contamination. The 22 kW at 500 V AC-3 rating governs motor switching under normal starting duty — that is the figure to match against your motor nameplate. The 35 A AC-4 rating at 400 V covers the more severe inching and counter-current braking cycles, where contact wear accelerates. Mechanical life is typical at 10 million operations. The 115 mm depth and 85 mm width fit standard S2 contactor footprints; verify rail space against existing enclosures. Substance prohibitance date of 05/01/2012 aligns with RoHS and REACH compliance expectations for this manufacturing vintage. The SIRIUS series carries IEC and UL certifications through Siemens' standard approvals; verify specific UL file numbers against your local code requirements.","metaTitle":"Siemens 3RT1035-3AF08-0PA3 SIRIUS Power Contactor, S2, 22 kW","metaDescription":"Siemens SIRIUS 3RT1035-3AF08-0PA3 power contactor, Size S2, 22 kW at 500 V AC-3. Active production. Screw terminals, DIN rail mount. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"115 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"85 mm","at AC":"7 ... 20 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","at 50 Hz":"0.85 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20","1 Rated Value":"50 Hz","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"1 200 1/h","at AC-2 maximum":"600 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Size Of Contactor":"S2","Solid Or Stranded":"2x (0.75 ... 16 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"110 V","at 500 V rated value":"22 kW","at 690 V rated value":"11.4 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"18.5 kW","at AC-4 at 400 V rated value":"35 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"16 mm²","at 60 °C minimum permissible":"16 mm²","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"22 kW","at 690 V at 60 °C rated value":"66 kW","at AWG cables for main contacts":"2x (18 ... 2)","For Auxiliary And Control Circuit":"spring-loaded terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 63 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 125 A","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Thermal Short-Time Current Limited To 10 S":"400 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","apparent holding power of magnet coil at AC":"12.5 VA","apparent pick-up power of magnet coil at AC":"145 VA","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.79","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.36","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"3","number of NO contacts for auxiliary contacts instantaneous contact":"3","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=330658&mlfb=3RT1035-3AF08-0PA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1035-3AF08-0PA3/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions for panel layout?","answer":"Depth is 115 mm, width 85 mm, height 112 mm. It mounts on 35 mm DIN rail per DIN EN 50022 and supports side-by-side mounting without derating."},{"question":"What wire sizes does the screw terminal accept?","answer":"Main circuit terminals accept 2x (0.75...25 mm²) stranded or 2x (0.25...2.5 mm²) solid. Minimum cross-section at 40 °C is 16 mm²."},{"question":"What compliance documentation is available?","answer":"The part carries a substance prohibitance date of 05/01/2012, consistent with RoHS and REACH compliance. As a SIRIUS product, it is designed to IEC 60947-4-1 standards; UL certification is typical for this series but verify specific file numbers for your jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1035-3AF08-0PA3","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/3RT1035-3AF08-0PA3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}