{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5TT5831-2","brand":"Siemens","brandSlug":"siemens","productSlug":"5TT5831-2","canonicalUrl":"https://aoctrl.com/siemens/5TT5831-2","factsUrl":"https://aoctrl.com/api/mcp/products/5TT5831-2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON insta contactor, 5TT5831-2, 3 NO + 1 NC, 25 A rated, 440 V max, 24 V AC coil, 2 MW wide, IP20.","salesMarkdown":"The Siemens SENTRON 5TT5831-2 is an insta contactor — a compact, DIN-rail-mountable switching device designed for lighting, heating, and general AC loads in commercial and light-industrial panels. The coil is 24 V AC, which means it integrates directly into a standard 24 V AC control transformer circuit — no DC supply needed. ## Contact Configuration and Panel Fit The contactor provides 3 normally-open (NO) main contacts and 1 normally-closed (NC) auxiliary contact. That gives you three switched poles for a 3-phase load or three independent single-phase circuits, plus the NC for a status feedback or interlock. Depth is 71 mm, which keeps it clear of shallow gland plates and back panels. The 440 V maximum is the insulation voltage; it suits 400 V three-phase networks common in European commercial installations.","metaTitle":"Siemens SENTRON 5TT5831-2 Insta Contactor, 25 A, 3 NO + 1 NC","metaDescription":"Siemens SENTRON 5TT5831-2 insta contactor, 25 A rated operational current, 3 NO + 1 NC contacts, 24 V AC coil, 440 V max, 2 MW wide, IP20. Active production, sourced to order. RFQ","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"71 mm","Width":"36 mm","Height":"90 mm","Maximum":"440 V","Minimum":"440 V","Rated Value":"24 V","lifecycle_stage":"current","Installation Depth":"0 mm","Product Brand Name":"SENTRON","Product Designation":"Insta contactor","protection class IP":"IP20","Design Of The Product":"3 NO contacts 1 NC contact","Rated Value / Maximum":"24 V","number of NC contacts":"1","number of NO contacts":"3","Number Of Modular Width Units":"2","Operational Current / Rated Value":"25 A","operational current / at AC / rated value":"25 A","Type Of Voltage / Of The Operating Voltage":"AC","Switching Capacity Active Power / With Incandescent Lamp Load":"2 000 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$24.13","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2be05c57772478cf795d02432abdfccf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=479943&mlfb=5TT5831-2","alternativesUrl":"https://aoctrl.com/api/mcp/products/5TT5831-2/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the 5TT5831-2?","answer":"Rated operational current 25 A, maximum voltage 440 V, control voltage 24 V AC. Contact configuration is 3 NO + 1 NC. It occupies 2 MW (36 mm wide, 71 mm deep) on a DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5TT5831-2","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/5TT5831-2 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}}