{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2025-2XJ40-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2025-2XJ40-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT2025-2XJ40-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2025-2XJ40-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT contactors with extended application range, 3-pole, 3RT2025-2XJ40-0LA2, AC-3e/AC-3 17 A, 7.5 kW/400 V, 72 V DC coil, solid-state operating mechanism, 1 NO + 1 NC auxiliary, spring-loaded terminals, frame size S0.","salesMarkdown":"## What this contactor does — and the spec that decides the fit The Siemens 3RT2025-2XJ40-0LA2 is a 3-pole traction contactor from the SIRIUS 3RT family with extended application range, rated for AC-3e/AC-3 duty at 17 A and 7.5 kW at 400 V. That AC-3 rating is the motor-switching curve — it handles the inrush of a squirrel-cage induction motor on break and make, so the 17 A figure is the real-world limit for a 7.5 kW load at 400 V three-phase. The 72 V DC coil with a solid-state operating mechanism means no mechanical coil burnout; the integrated varistor handles the back-EMF from the DC coil collapse. Frame size S0 keeps the footprint predictable on the DIN rail — you can lay out a multi-contactor group knowing the width and the spring-loaded terminals accept up to the standard wire range without ring lugs. The auxiliary contact block is built in: 1 NO + 1 NC, which covers a basic seal-in and a status feedback without adding a side-mount block. ## Deployment context — where this contactor fits in the panel Snap-on DIN rail mounting for the S0 frame, so it integrates into a standard control-panel enclosure alongside other SIRIUS 3RT components. The spring-loaded terminals (cage clamp style) wire up clean with a screwdriver — no torque wrench needed, just strip to the right length and push in. For a packed panel, the solid-state operating mechanism eliminates the audible hum and heat dissipation of a conventional DC coil holding circuit.","metaTitle":"Siemens 3RT2025-2XJ40-0LA2 SIRIUS Contactor, 17 A, 7.5 kW/40","metaDescription":"Siemens SIRIUS 3RT2025-2XJ40-0LA2 traction contactor, AC-3e/AC-3 rated 17 A, 7.5 kW at 400 V, 72 V DC coil, solid-state operating mechanism, 1 NO+1 NC aux, spring terminals, S0 fra","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"title":"3RT2025-2XJ40-0LA2","Group Code":"R711","description":"traction contactor, AC-3e/AC-3, 17 A, 7.5 kW / 400 V, 3-pole, 72 V DC, 0.7-1.25* Uc, solid-state operating mechanism, with integrated varistor, auxiliary contacts: 1 NO + 1 NC, spring-loaded terminal, frame size: S0","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 with extended application range, 3-pole","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"109.00 x 55.00 x 116.00 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":"Lead CAS-No. 7439-92-1 > 0,1 % (w / w)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/86f7902c5898d260e7b7700e704965f4.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RT2025-2XJ40-0LA2?tree=CatalogTree"},"ai":{"faq":[{"question":"What are the key ratings I need to verify fit for a motor circuit?","answer":"AC-3e/AC-3 rated 17 A, 7.5 kW at 400 V, 3-pole. Coil is 72 V DC with a solid-state operating mechanism accepting 0.7 to 1.25 times Uc. Auxiliary contacts: 1 NO + 1 NC. Frame size S0 with spring-loaded terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2025-2XJ40-0LA2","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/3RT2025-2XJ40-0LA2 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}}