{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-3XF40-1LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-3XF40-1LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-3XF40-1LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3XF40-1LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RT1025-3XF40-1LA2, AC-3 contactor, 7.5 kW at 400 V, DC 110 V coil, solid-state control block with integrated varistor, cage clamp connection, size S0, upright mounting position.","salesMarkdown":"The 3RT1025-3XF40-1LA2 is a three-pole contactor in the S0 frame, rated for AC-3 duty switching 7.5 kW at 400 V. The DC 110 V coil accepts a control voltage range of 0.7 to 1.25 times the rated supply voltage, with a solid-state control block that includes an integrated varistor for coil suppression — no external snubber needed. Upright mounting position is specified; verify orientation in the panel layout to avoid derating. The cage clamp connection reduces wiring time compared to screw terminals — no torque driver needed, just a screwdriver to open the spring. The solid-state control block draws minimal coil inrush, so a standard 24 VDC power supply can drive multiple contactors without oversizing. The integrated varistor clamps the inductive kickback from the coil, protecting the PLC output or relay driving it. Upright mounting ensures proper heat dissipation from the main poles; side-by-side mounting may require derating per the manufacturer's thermal guidelines.","metaTitle":"3RT1025-3XF40-1LA2 Contactor, AC-3 7.5kW/400V, DC 110V Coil,","metaDescription":"3RT1025-3XF40-1LA2 contactor, AC-3 motor switching 7.5 kW at 400 V, DC 110 V coil with solid-state control block and varistor. Cage clamp, size S0, upright mounting. Lifecycle curr","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=240384&mlfb=3RT1025-3XF40-1LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3XF40-1LA2/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to this contactor?","answer":"The evidence does not list a direct pin-compatible alternative. The 3RT1025-3XF40-1LA2 is a specific variant with a DC 110 V solid-state control block and cage clamp terminals. Any substitution would need to match the coil voltage, control block type, and terminal style — verify footprint and wiring before specifying a different order code."},{"question":"What compliance documentation is available for this part?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for this order code. As a Siemens SIRIUS contactor, it typically carries CE marking and meets relevant IEC/EN standards, but confirm the exact documentation package with the supplier at time of order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-3XF40-1LA2","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/3RT1025-3XF40-1LA2 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}}