{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1035-1BE40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1035-1BE40","canonicalUrl":"https://aoctrl.com/siemens/3RT1035-1BE40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1035-1BE40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, S2 frame, screw-type terminals, 35 A at AC-4 400 V, snap-on DIN rail mounting, IP20 front.","salesMarkdown":"The headline rating to watch is the AC-4 at 400 V: 35 A. That's the contactor's capability for reversing or inching duty — the high-stress switching where the load is still pulling current when the contacts open. For AC-3 motor starting at 400 V, it carries 18.5 kW. At 500 V the motor rating reaches 22 kW; at 690 V it drops to 11.4 kW. These are the numbers that decide fit for a given motor nameplate. Coil-side: the contactor pulls 10 A at 24 V rated value, 6 A at 230 V, and 3 A at 400 V. The arcing time runs 10 to 15 ms; DC dropout takes 20 to 25 ms. Mechanical life is rated at 10 million operations typical, and the switching frequency limits are 1 200 ops/h at AC-1, 1 000 at AC-3, and 300 at AC-4 — the last figure reflecting the heavier arc wear in inching duty. Side-by-side mounting is permitted, so no derating for ganging in a panel. Terminal capacity: solid conductors accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and max 2x (0.75 to 4 mm²). For the main circuit, the minimum permissible cross-section at 40 °C is 16 mm² — that's the thermal sizing for continuous current, not the terminal's mechanical limit. Pollution degree 3 (conductive pollution typical of industrial enclosures) is assumed, so the IP20 front / IP00 terminal protection is adequate inside a cabinet. RoHS compliance is documented with a substance prohibitance date of 05/01/2012, covering the EU RoHS directive.","metaTitle":"Siemens 3RT1035-1BE40 SIRIUS Power Contactor, S2 Frame, 35 A","metaDescription":"Siemens SIRIUS 3RT1035-1BE40 power contactor, S2 frame, rated 35 A at AC-4 400 V. Screw terminals, DIN rail snap-on. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"130 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"55 mm","at DC":"20 ... 25 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","Arcing Time":"10 ... 15 ms","Rated Value":"60 V","On The Front":"IP20","Initial Value":"0.8","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","Full-Scale Value":"1.1","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 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":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 63 A","closing power of magnet coil at DC":"13.3 W","holding power of magnet coil at DC":"13.3 W","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 (20 ... 16), 2x (18 ... 14), 1x 12","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 (0.5 ... 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)","Thermal Short-Time Current Limited To 10 S":"400 A","Finely Stranded Without Core End Processing":"2x (0.75 ... 16 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","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=260076&mlfb=3RT1035-1BE40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1035-1BE40/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT1035-1BE40?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is 3RT1035-1BE40's listed depth?","answer":"The depth is 130 mm. That's the dimension behind the panel face — relevant when the enclosure door clearance is tight."},{"question":"What wire sizes does the 3RT1035-1BE40 accept?","answer":"Solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). Stranded: 2x (0.75 to 25 mm²). For the main circuit at 40 °C, minimum 16 mm² is required."},{"question":"What compliance documentation does the 3RT1035-1BE40 carry?","answer":"RoHS compliance is documented with a substance prohibitance date of 05/01/2012. Pollution degree 3 is rated. The contactor is designed for IEC 60947-4-1 environments."},{"question":"Will 3RT1035-1BE40 drop into a panel specified around 3RT1044-1FB46 without rewiring?","answer":"Not directly — the 3RT1044-1FB46 is a larger frame (S3 vs S2) with different terminal spacing and a higher AC-4 rating. The mounting rail footprint and screw terminal pattern differ; expect to re-terminate and possibly adjust the panel layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1035-1BE40","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/3RT1035-1BE40 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}}