{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5TT5040-0","brand":"Siemens","brandSlug":"siemens","productSlug":"5TT5040-0","canonicalUrl":"https://aoctrl.com/siemens/5TT5040-0","factsUrl":"https://aoctrl.com/api/mcp/products/5TT5040-0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON Insta contactor, 5TT5040-0, 4 NO contacts, 40 A AC rated, 230 V AC coil, 400 V max, IP20, 3 modular width units.","salesMarkdown":"The Siemens SENTRON 5TT5040-0 is an Insta contactor — a compact, modular switching device built for DIN-rail panels. It carries four normally-open (NO) contacts rated at 40 A AC, with a coil that pulls in at 230 V AC (also rated for 220 V DC). For motor loads (AC-3 duty), you'd typically derate; the datasheet doesn't give an AC-3 figure here, so for inductive motor switching, size up or check the motor full-load amps against the contactor's AC-3 rating from the family data. The 230 V AC coil means it's wired to a control transformer or a 230 V control bus — common in European-style panels. The 400 V maximum across the contacts confirms it's rated for 3-phase line voltage, so it can switch a 400 V three-phase load (like a small pump or fan) provided the current is within the contact rating. The 3-module-width footprint (53.5 mm wide, 90 mm tall, 71 mm deep) fits standard 18 mm-per-module DIN-rail enclosures. The installation note calls for spacers between units to allow heat dissipation — so don't pack them tight side-by-side without the recommended air gap. IP20 means it's for dry indoor panels only; no washdown or outdoor duty.","metaTitle":"Siemens SENTRON 5TT5040-0 Insta Contactor, 40 A, 4 NO, 230 V","metaDescription":"Siemens SENTRON 5TT5040-0 Insta contactor, 4 NO contacts, rated 40 A at 230 V AC, 400 V max. IP20, 3 MW. Active production. Sourced to order against RFQ.","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":"230 V","lifecycle_stage":"current","Installation Depth":"64 mm","Product Brand Name":"SENTRON","Product Designation":"Insta contactor","at DC / rated value":"220 V","protection class IP":"IP20","Design Of The Product":"4 NO contacts","Rated Value / Maximum":"230 V","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/887f719808fad527a581a8b499c54c58.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=349347&mlfb=5TT5040-0","alternativesUrl":"https://aoctrl.com/api/mcp/products/5TT5040-0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 5TT5040-0?","answer":"The 5TT5040-0 is a 4-pole NO contactor rated 40 A AC, with a 230 V AC coil (also rated for 220 V DC) and a maximum switching voltage of 400 V. It occupies 3 modular width units on a DIN rail and is IP20 rated for indoor panel use."},{"question":"Where can I buy the 5TT5040-0?","answer":"The 5TT5040-0 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5TT5040-0","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/5TT5040-0 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}}