{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA9012-5AB02","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA9012-5AB02","canonicalUrl":"https://aoctrl.com/siemens/3RA9012-5AB02","factsUrl":"https://aoctrl.com/api/mcp/products/3RA9012-5AB02","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RA9012-5AB02 motor starter, GM-SET contactor, 3-pole non-reversing, 1NO-4NC auxiliary contacts, 24 A, integral surge suppressor, active lifecycle.","salesMarkdown":"## GM-SET contactor with integral surge suppression The Siemens 3RA9012-5AB02 is a GM-SET contactor assembly — a 3-pole, non-reversing motor starter with 1 normally-open and 4 normally-closed auxiliary contacts, rated 24 A, and fitted with an integral surge suppressor. The surge suppressor is built into the coil circuit, which means you don't need to add a separate RC snubber or varistor across the coil terminals — one less component to stock and one less failure point on the panel layout. ## What the 24 A rating means for the panel The 24 A rating on this contactor governs the continuous current it can carry in AC-3 duty (motor switching). The 1NO-4NC auxiliary contact complement gives you one set for the holding circuit or PLC feedback, and four NC sets for interlocks or status signalling — enough for a reversing starter pair or a star-delta transition without adding a separate aux block. The integral surge suppressor is wired across the coil. On a 24 V DC or AC coil, it clips the inductive kickback when the contactor drops out — that protects the PLC output or relay contact driving the coil from voltage spikes that would otherwise erode the switching element over thousands of cycles. For a BOM freeze or a new panel design, there is no urgency to stockpile or find a substitute — the supply chain is stable.","metaTitle":"Siemens 3RA9012-5AB02 Motor Starter, 24 A, 3-Pole, 1NO-4NC","metaDescription":"Siemens 3RA9012-5AB02 motor starter, 3-pole non-reversing contactor with 1NO-4NC aux contacts, 24 A, integral surge suppressor. Current lifecycle stage: active.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cee68187496abb5d1858f09afb7932b5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=152705&mlfb=3RA9012-5AB02","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA9012-5AB02/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RA9012-5AB02 used for?","answer":"It is a 3-pole non-reversing motor starter contactor rated 24 A with 1NO-4NC auxiliary contacts and an integral surge suppressor. It switches motor loads in control panels — typically a 5.5–7.5 kW motor at 400 V — and the built-in aux contacts handle interlocks, feedback, or holding circuits without a separate auxiliary block."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA9012-5AB02","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/3RA9012-5AB02 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}}