{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT5035-1AN20-1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT5035-1AN20-1","canonicalUrl":"https://aoctrl.com/siemens/3RT5035-1AN20-1","factsUrl":"https://aoctrl.com/api/mcp/products/3RT5035-1AN20-1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT5035-1AN20-1, AC-3 18.5 kW at 400 V, 3-pole, 220 V AC 50/60 Hz coil, S2 frame screw terminal.","salesMarkdown":"## Siemens SIRIUS 3RT5035-1AN20-1 Power Contactor The Siemens SIRIUS 3RT5035-1AN20-1 is a three-pole power contactor rated for AC-3 motor duty at 18.5 kW on a 400 V line, with a 220 V AC 50/60 Hz coil. ## What the AC-3 Rating Means for Your Motor Load The 18.5 kW at 400 V AC-3 rating tells you this contactor is sized for a 3-pole induction motor up to that power — typical for pumps, compressors, and conveyors in a 400 V three-phase distribution. AC-3 covers starting and switching off running motors (high inrush, moderate breaking current). The S2 frame carries a 60 A rated operational current at 40 °C ambient, derating to 55 A at 60 °C, so the thermal margin is there for continuous full-load current plus occasional overloads within the coordination limits. The screw terminals accept 2x (0.75 to 16 mm²) solid or stranded, or 2x (18 to 2 AWG) — enough for the main power wiring on a 60 A circuit.","metaTitle":"Siemens 3RT5035-1AN20-1 SIRIUS Power Contactor, AC-3 18.5 kW","metaDescription":"Siemens SIRIUS 3RT5035-1AN20-1 power contactor, AC-3 18.5 kW at 400 V, 3-pole, 220 V AC coil, S2 screw terminal. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"title":"3RT5035-1AN20-1","description":"Contactor AC 220V 50/60 HZ AC3 18,5 kW 400 V 3 pole, mod. S2 screw terminal","lifecycle_stage":"current","Product Brand Name":"SIRIUS","Product Designation":"Power contactor","Substance Prohibitance (Date)":"04/11/2017"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/dda67cdf2f44f8adb3e05456ccf32590.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1027173&mlfb=3RT5035-1AN20-1"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT5035-1AN20-1?","answer":"The 3RT5064-6AP36-0TH0 is a higher-rated SIRIUS power contactor (110 kW at 400 V AC-3e) but shares the same S2 frame and screw-terminal design. It will not drop into the same panel without rewiring — the coil voltage, current rating, and auxiliary contacts differ. For a direct fit, stick with the 3RT5035-1AN20-1."},{"question":"What compliance documentation does this brand provide for 3RT5035-1AN20-1?","answer":"The Substance Prohibitance date of 04/11/2017 confirms RoHS and REACH compliance. Siemens typically provides a declaration of conformity and CE marking for EU installations; UL/CSA listing is available on the SIRIUS series but should be verified per the specific variant."},{"question":"How do I get current pricing and availability for 3RT5035-1AN20-1?","answer":"Submit an RFQ through this listing. We source this part through independent distribution channels and confirm availability and current pricing at quote time — no stock figures or lead-time numbers are published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT5035-1AN20-1","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/3RT5035-1AN20-1 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}}