{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2035-1AF00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2035-1AF00","canonicalUrl":"https://aoctrl.com/siemens/3RT2035-1AF00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2035-1AF00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2035-1AF00 power contactor, Size S2, 40 A at 480 V AC-3, screw and snap-on 35 mm DIN rail mount, screw-type coil terminals.","salesMarkdown":"## Panel fit and mounting constraints The 3RT2035-1AF00: These spacings govern gland-plate fill factor and adjacent device placement in a crowded enclosure. ## Switching capacity and duty-cycle planning Rated 40 A at 480 V in AC-3 duty — this is the motor-switching current that drives the contactor selection for a 40 A full-load-amp motor branch. The AC-3 rating governs the make/break of squirrel-cage motors during running starts; the AC-4 rating of 300 operations per hour limits plugging and inching duty cycles. Mechanical switching rates: 1,200 ops/h in AC-1 (resistive), 1,000 ops/h in AC-3, and 300 ops/h in AC-4. The arcing time of 10–20 ms and closing time of 10–18 ms set the minimum off-time between cycles — relevant for high-speed reversing or jogging applications. ## Auxiliary contact count and coil termination The contactor carries an auxiliary switch block configurable from 1 NO to 8 NO + 1 NC (18...1 range). This covers feedback to a PLC input for status monitoring or interlocking without an add-on block in many cases. Coil ratings at 50 Hz include 110 V and 230 V (, 7.5 hp) — confirm the control voltage matches the panel's control transformer tap. ## Environmental envelope and storage limits The 10 million typical mechanical life assumes clean, dry conditions within these limits — derate the electrical life for high-humidity or corrosive atmospheres.","metaTitle":"Siemens 3RT2035-1AF00 SIRIUS Power Contactor, 40 A at 480 V","metaDescription":"Siemens 3RT2035-1AF00 SIRIUS power contactor, Size S2, 40 A at 480 V AC-3. Screw/snap-on DIN rail mount. Active production, quoted to order. RFQ for pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"130 mm","Width":"55 mm","at AC":"10 ... 18 ms","title":"3RT2035-1AF00","Height":"114 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.37","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"6 mm","description":"power contactor, AC-3e/AC-3, 41 A, 18.5 kW / 400 V, 3-pole, 110 V AC, 50 Hz, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S2","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-1 maximum":"1 200 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","at AC-3e maximum":"1 000 1/h","For Main Contacts":"18 ... 1","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)","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":"7.5 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"40 A","at 50 Hz rated value":"110 V","at 500 V rated value":"2 A","at 600 V rated value":"41 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"3 hp","at 200/208 V rated value":"10 hp","at 220/230 V rated value":"15 hp","at 460/480 V rated value":"30 hp","at 575/600 V rated value":"40 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"6.6 W","at AC-2 at 400 V rated value":"18.5 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"35 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2014","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"52.8 A","at AC-5b up to 400 V rated value":"33.2 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 80A (690V,100kA), aM: 50A (690V,100kA), BS88: 63A (415V,80kA)","Without Load Current Share Typical":"16 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG: 160 A (690 V, 100 kA), aM: 80 A (690 V, 100 kA), BS88: 125 A (415 V, 80 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"2.2 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC","Limited To 1 S Switching At Zero Current Maximum":"843 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"596 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"400 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"241 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"196 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / P600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"16 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/c69bb12a5a63d66e5535c165d762d868.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=89053&mlfb=3RT2035-1AF00"},"ai":{"faq":[{"question":"What is the closest alternative to the 3RT2035-1AF00 in the SIRIUS contactor family?","answer":"The 3RT2035-1AF00 is a Size S2 power contactor. The closest peer within the SIRIUS range is the 3RT2036-1AF00, which shares the same S2 frame and DIN-rail footprint but is rated for a higher AC-3 current (50 A at 480 V vs 40 A). The 3RT2035-1AF00 is the correct choice when the motor FLA is at or below 40 A; stepping to the 3RT2036 adds margin but increases the coil VA draw and panel heat dissipation."},{"question":"What compliance documentation does Siemens provide for the 3RT2035-1AF00?","answer":"The contactor carries CE marking for the European low-voltage directive and is designed to meet IEC 60947-4-1 for contactors and motor-starters. UL/CSA listings are standard for the SIRIUS series, though the specific file number depends on the coil voltage variant. RoHS and REACH declarations are available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2035-1AF00","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/3RT2035-1AF00 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}}