{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1035-1BA40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1035-1BA40","canonicalUrl":"https://aoctrl.com/siemens/3RT1035-1BA40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1035-1BA40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 power contactor, 3RT1035-1BA40, 22 kW at 500 V AC-3, 55 mm width, screw-type terminals, DIN rail snap-on mounting.","salesMarkdown":"The Siemens 3RT1035-1BA40 is a SIRIUS S2 power contactor, rated for switching motor loads up to 22 kW at 500 V in AC-3 duty, or 18.5 kW at 400 V in AC-2 duty. AC-3 switching at 1 000 operations per hour is the real-world motor-starting rhythm — conveyor duty, pump cycling, fan starts. The AC-4 rating of 35 A at 400 V covers inching or plugging applications where the contactor breaks full-load current under stalled-rotor conditions. Pollution degree 3 means it's built for the conductive-dust and humidity environment inside a typical industrial enclosure, not a clean room. The screw-type main terminals accept stranded wire up to 2x 25 mm², and solid up to 2x 4 mm². That's enough for the 16 mm² minimum at 40 °C ambient — so you aren't fighting undersized lugs on a warm panel day. Auxiliary contact wiring uses the smaller 0.5-to-1.5 mm² solid range typical for control circuits. The arcing time of 10-15 ms and DC dropout time of 20-25 ms are what you'd expect for this frame size — no surprises when timing interlocking with a downstream starter.","metaTitle":"Siemens 3RT1035-1BA40 SIRIUS Power Contactor, S2, 22 kW at 5","metaDescription":"Siemens 3RT1035-1BA40 SIRIUS S2 power contactor, 22 kW at 500 V, 55 mm wide, screw terminals, DIN rail mount. Active production. Quoted to order.","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":"12 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=333820&mlfb=3RT1035-1BA40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1035-1BA40/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RT1035-1BA40?","answer":"130 mm. That plus the 55 mm width and 112 mm height gives you the full envelope for panel layout."},{"question":"What compliance documentation does this contactor carry?","answer":"RoHS compliance is indicated by a substance prohibitance date of 05/01/2012. The product is designed to meet IEC and EN standards typical for the SIRIUS platform, including pollution degree 3."},{"question":"How do I get current pricing and availability for 3RT1035-1BA40?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels — we source and quote to order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1035-1BA40","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/3RT1035-1BA40 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}}