{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-3BD40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-3BD40","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-3BD40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-3BD40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1024-3BD40, S0 frame, screw terminals, 7.5 kW at 500/690 V, AC-2 5.5 kW at 400 V, AC-4 12.5 A, snap-on DIN rail.","salesMarkdown":"At 500 V and 690 V it delivers 7.5 kW, covering most three-phase induction motors in the 7.5 kW class across standard European voltage levels. The AC-12 rating of 10 A covers resistive and lightly inductive loads in control circuits. ## Footprint and integration Screw-type terminals on the main circuit accept 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or up to 2x 10 mm² stranded conductors. AWG equivalents are 2x (16 to 12), 2x (14 to 10), or 1x 8. Solid conductors 2x (0.25 to 2.5 mm²) also fit. Front-side protection is IP20 — safe for finger contact in enclosed panels. The terminal area itself is rated IP00, so the contactor needs enclosure protection against dust and tools. ## Coil and environmental specs That simplifies power supply sizing and keeps heat low in the panel. ## Protection coordination This lets you match upstream protection to your plant's coordination philosophy.","metaTitle":"Siemens 3RT1024-3BD40 SIRIUS Power Contactor, S0, 7.5 kW","metaDescription":"Siemens 3RT1024-3BD40 SIRIUS power contactor, S0 frame, rated 7.5 kW at 500/690 V, AC-2 5.5 kW at 400 V. Screw terminals, snap-on DIN rail. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"100 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"85 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"42 V","On The Front":"IP20","Initial Value":"0.8","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.1","Size of contactor":"S0","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":"7.5 kW","at 690 V rated value":"7.5 kW","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"12.5 A","Closing power of magnet coil at DC":"5.4 W","Holding power of magnet coil at DC":"5.4 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","at AWG conductors for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","With Type Of Coordination 1 Required":"fuse gL/gG: 63 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"40 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"DC","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","Of The Contactor With Added Electronics-Compatible 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=1605&mlfb=3RT1024-3BD40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-3BD40/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RT1024-3BD40?","answer":"The depth is 100 mm, with a width of 45 mm and height of 85 mm — a compact S0 frame footprint that fits standard panel layouts."},{"question":"What wire sizes does the 3RT1024-3BD40 accept?","answer":"Solid conductors: 2x (0.25 to 2.5 mm²). Stranded: 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or up to 2x 10 mm². AWG equivalents: 2x (16 to 12), 2x (14 to 10), or 1x 8."},{"question":"Where can I buy 3RT1024-3BD40 and how is it quoted?","answer":"The 3RT1024-3BD40 is sourced through independent industrial distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."},{"question":"What compliance documentation is available for 3RT1024-3BD40?","answer":"As a Siemens SIRIUS product, the 3RT1024-3BD40 carries the standard IEC and UL certifications typical for this series. Specific compliance documentation (RoHS, REACH, UL, IEC) is available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-3BD40","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/3RT1024-3BD40 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}}