{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT7035-1AN20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT7035-1AN20","canonicalUrl":"https://aoctrl.com/siemens/3RT7035-1AN20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT7035-1AN20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 contactor, 3RT7035-1AN20, 3-pole, AC-3 rated 690 V max, screw terminals, 55 mm width, IP20 front / IP00 terminal.","salesMarkdown":"## S2 Contactor for Motor Loads That 690 V AC-3 ceiling covers standard 400 V and 480 V motor feeds with headroom for 690 V line applications. The insulation voltage is also rated 690 V, so the contactor's internal clearances are designed for that voltage class. The 55 mm width fits a standard 55 mm-wide DIN-rail footprint — no surprises in panel layout. That means the enclosure protects against finger contact on the front, but the wiring zone is open — standard for panel-mounted contactors where the cabinet provides the outer IP barrier. The magnet coil draws 0.73 W DC during closing and 0.41 W DC holding. That low holding power keeps heat dissipation minimal in a crowded enclosure. The control circuit uses screw-type terminals; auxiliary switch expansion is supported via the product extension option. Shock resistance is specified at 15 g for 5 ms and 8 g for 10 ms sine pulse — relevant if the contactor is mounted on a vibrating machine base or in a mobile application. That flexibility helps when routing cables in tight cabinets — you can orient the contactor to keep the terminals accessible. Degree of pollution is rated 3, meaning the contactor is designed for conductive pollution environments typical in industrial enclosures — not clean-room or sealed-panel duty without additional protection.","metaTitle":"Siemens 3RT7035-1AN20 S2 Contactor, 3-Pole, 690V AC-3, 55mm","metaDescription":"Siemens 3RT7035-1AN20 S2 contactor, 3-pole, AC-3 rated 690V max, 55mm wide. Current lifecycle stage: active production. Screw terminals, DIN rail mount. Sourced to order against RF","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"115 mm","Width":"55 mm","Height":"112 mm","at 50 Hz":"0.42","at 60 Hz":"0.42","On The Front":"IP20","During Storage":"-25 ... +70 °C","Of The Terminal":"IP00","at AC-3 maximum":"800 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-10 ... +55 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","at AC-3e maximum":"800 1/h","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S2","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Degree Of Pollution":"3","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"220 V","at 60 Hz rated value":"220 V","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-3 rated value maximum":"690 V","at AC-3e rated value maximum":"690 V","Insulation Voltage Rated Value":"690 V","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","With Type Of Assignment 2 Required":"gL/gG NH 3NA: 80 A","closing power of magnet coil at DC":"0.73 W","holding power of magnet coil at DC":"0.41 W","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gL/gG NH 3NA: 125 A","shock resistance with sine pulse at AC":"15g / 5 ms, 8g / 10 ms","number of NC contacts for main contacts":"0","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","Contact Reliability Of Auxiliary Contacts":"acceptability for PLC control (17 V, 5 mA)","Type Of Voltage Of The Control Supply Voltage":"AC","operational current at DC-13 at 220 V rated value":"0.3 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","Connectable Conductor Cross-Section For Main Contacts Finely Stranded With Core End Processing":"25 mm²","Connectable Conductor Cross-Section For Auxiliary Contacts Finely Stranded With Core End Processing":"0.5 ... 2.5 mm²"}},"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=1534049&mlfb=3RT7035-1AN20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT7035-1AN20/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the 3RT7035-1AN20?","answer":"It is a 3-pole size S2 contactor rated for AC-3 duty up to 690 V maximum, with an insulation voltage of 690 V. The coil draws 0.73 W DC closing and 0.41 W DC holding. Dimensions are 55 mm width, 112 mm height, 115 mm depth."},{"question":"Where can I buy the 3RT7035-1AN20?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the mounting method for the 3RT7035-1AN20?","answer":"It mounts via screw fixing or snap-on onto 35 mm standard mounting rail per DIN EN 50022. Side-by-side mounting is permitted without spacing gaps."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT7035-1AN20","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/3RT7035-1AN20 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}}