{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5TT5040-2","brand":"Siemens","brandSlug":"siemens","productSlug":"5TT5040-2","canonicalUrl":"https://aoctrl.com/siemens/5TT5040-2","factsUrl":"https://aoctrl.com/api/mcp/products/5TT5040-2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON insta contactor, 5TT5040-2, 4 NO contacts, rated 400 V AC / 40 A, control AC/24 V DC, IP20, 3 MW units.","salesMarkdown":"The control coil accepts both AC and DC, with a rated control voltage of 24 V DC, so it drops straight into a 24 VDC control bus without an extra rectifier. ## Mounting and integration constraints The 71 mm depth and 53.5 mm width mean it fits standard 4-module enclosure cutouts, but the manufacturer explicitly notes that spacers must be provided between contactors to ensure heat dissipation — so when ganging multiple units, leave a gap or use a ventilated backplate. IP20 finger-safe terminals are fine for enclosed panels; not for washdown zones.","metaTitle":"Siemens SENTRON 5TT5040-2 4 NO Insta Contactor, 400 V 40 A A","metaDescription":"Siemens SENTRON 5TT5040-2 insta contactor, 4 NO contacts, rated 400 V / 40 A AC, 24 V DC coil. IP20. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"71 mm","Width":"53.5 mm","Height":"90 mm","Maximum":"400 V","Minimum":"400 V","Rated Value":"24 V","lifecycle_stage":"current","at DC rated value":"24 V","Installation Depth":"64 mm","Product Brand Name":"SENTRON","Product Designation":"Insta contactor","Rated Value Maximum":"24 V","protection class IP":"IP20","Design Of The Product":"4 NO contacts","number of NC contacts":"0","number of NO contacts":"4","Installation Or Assembly Note":"provision must be made for spacers to ensure heat dissipation","Number Of Modular Width Units":"3","operational current at AC rated value":"40 A","Type Of Voltage Of The Operating Voltage":"AC","Product Extension Installable Supplementary Devices":"Yes","Type Of Voltage Of The Operating Voltage For Actuation":"AC/DC","power loss [W] for rated value of the current at AC in hot operating state per pole":"4 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f7212b55c8b8d5095eb118f6b299b7c3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=358231&mlfb=5TT5040-2","alternativesUrl":"https://aoctrl.com/api/mcp/products/5TT5040-2/alternatives.json"},"ai":{"faq":[{"question":"Will the 5TT5040-2 drop into a panel designed for a 3RT7026-1AB05 without rewiring?","answer":"Not without modification. The 5TT5040-2 is a 4-pole insta contactor with 4 NO contacts, while the 3RT7026-1AB05 is a 3-pole main contactor with 3 NO main contacts plus one NO + one NC auxiliary contact built in. The footprint differs (71 mm depth vs 91 mm, 53.5 mm vs 55 mm width), and the control voltage ranges are not identical — the 5TT5040-2 is rated for 24 V DC coil, whereas the 3RT7026-1AB05 expects a specific AC control voltage. Panel layout and wiring would need to be re-evaluated."},{"question":"What are the key dimensions of the 5TT5040-2?","answer":"Depth is 71 mm, width 53.5 mm, height 90 mm, with an installation depth of 64 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5TT5040-2","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/5TT5040-2 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}}