{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2028-1BB40-Z W96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2028-1BB40-Z-W96","canonicalUrl":"https://aoctrl.com/siemens/3RT2028-1BB40-Z-W96","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2028-1BB40-Z%20W96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2 power contactor, AC-3e/AC-3, 38 A, 18.5 kW / 400 V, 3-pole, 24 V DC coil, 1 NO + 1 NC auxiliary contacts, screw terminal, size S0, multi-unit packaging (24 units).","salesMarkdown":"## Ratings and fit for motor control The Siemens 3RT2028-1BB40-Z W96 is a 3-pole power contactor rated for AC-3e/AC-3 duty at 38 A, which translates to 18.5 kW switching capacity on a 400 V three-phase supply. That AC-3e rating covers the standard motor-starting load — inrush during start, then the running current — so this contactor is sized for a 18.5 kW induction motor at 400 V. ## Auxiliary contacts and wiring Built-in auxiliary contacts are 1 NO + 1 NC, screw terminal type. The product lifecycle status is Active (current production), so this order code is a standard catalog item — no last-time-buy or phase-out notice applies. RoHS compliance is confirmed since October 2009, and REACH candidate-list information is available. Multi-unit packaging ships 24 pieces per pack; each unit is individually bagged or trayed within the master carton.","metaTitle":"Siemens 3RT2028-1BB40-Z W96 Power Contactor, 38 A AC-3e, 24","metaDescription":"Siemens 3RT2028-1BB40-Z W96 power contactor, AC-3e/AC-3 rated 38 A, 18.5 kW at 400 V, 3-pole, 24 V DC coil, 1 NO + 1 NC auxiliary, screw terminal, size S0. Active lifecycle. RoHS c","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Group Code":"R711","Product Group":"5336","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"Ordering Data Overview","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"100.00 x 40.00 x 40.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 01-10-09","REACH Art. 33 Duty to inform according to the current list of candidates":"Reach Information"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/10b4f8eee80e73dd72239a9fd43dfa20.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RT2028-1BB40-ZW96?tree=CatalogTree","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2028-1BB40-Z%20W96/alternatives.json"},"ai":{"faq":[{"question":"What is the group code (R711) for this part?","answer":"The Group Code is R711, which is Siemens' internal classification for contactors and motor starters in the SIRIUS family."},{"question":"What is the product group (5336) for this part?","answer":"The Product Group is 5336, a Siemens category code for power contactors and related switching devices."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2028-1BB40-Z-W96","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/3RT2028-1BB40-Z-W96 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}}