{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2024-1BB40-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2024-1BB40-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT2024-1BB40-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2024-1BB40-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2024-1BB40-1AA0, power contactor, AC-3e/AC-3 12 A, 5.5 kW / 400 V, 3-pole, 24 V DC coil, 1 NO + 1 NC auxiliary contacts, screw terminal, size S0.","salesMarkdown":"The Siemens 3RT2024-1BB40-1AA0 is a SIRIUS 3RT series power contactor, 3-pole, rated AC-3e/AC-3 at 12 A and 5.5 kW at 400 V. The coil is 24 V DC. It carries 1 normally-open and 1 normally-closed auxiliary contact, and terminates via screw terminals in the S0 frame size, intended for upright mounting. The AC-3e/AC-3 rating at 12 A and 5.5 kW at 400 V means this contactor is sized for switching three-phase induction motors under starting and running conditions — the standard duty for a contactor in a motor control center. The 24 V DC coil is common in PLC-driven panels where a 24 VDC control supply is already present; the DC coil holds in without the hum of an AC coil, and its dropout voltage is typically well below 24 V, giving noise immunity on the control line. The S0 frame size dictates the DIN-rail footprint and the terminal spacing; at 115 x 93 x 57 mm packaged, it fits standard panel layouts. ## Integration notes The screw terminals accept the usual panel-building wire range for a 12 A contactor. The auxiliary contact block is integrated — 1 NO + 1 NC — so no separate add-on block is needed for basic feedback to the PLC. The upright mounting position is specified for proper arc quenching; horizontal mounting would derate the switching capacity.","metaTitle":"Siemens 3RT2024-1BB40-1AA0 SIRIUS Contactor, 12 A, 24 V DC,","metaDescription":"Siemens SIRIUS 3RT2024-1BB40-1AA0 power contactor, AC-3e/AC-3 12 A, 5.5 kW/400 V, 3-pole, 24 V DC coil, 1NO+1NC aux, screw terminals, size S0. Active production, RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"title":"3RT2024-1BB40-1AA0","Group Code":"R711","description":"power contactor, AC-3e/AC-3, 12 A, 5.5 kW / 400 V, 3-pole, 24 V DC, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S0, upright mounting position","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":"SIRIUS 3RT contactors, 3-pole, up to 250 kW","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"115.00 x 93.00 x 57.00 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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8aa5af33e5f8a7cbad9c481c4ea741ba.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RT2024-1BB40-1AA0?tree=CatalogTree"},"ai":{"faq":[{"question":"What compliance documentation is available for this contactor?","answer":"RoHS compliance is confirmed since October 1, 2009, and REACH Article 33 duty-to-inform data is available."},{"question":"What are the key ratings of the 3RT2024-1BB40-1AA0?","answer":"It is a 3-pole power contactor rated AC-3e/AC-3 at 12 A and 5.5 kW at 400 V, with a 24 V DC coil and 1 NO + 1 NC auxiliary contacts. It uses screw terminals and is size S0."},{"question":"What is the group code and product group for this part?","answer":"The group code is R711 and the product group is 5336."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2024-1BB40-1AA0","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/3RT2024-1BB40-1AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}