{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA9012-5AE05","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA9012-5AE05","canonicalUrl":"https://aoctrl.com/siemens/3RA9012-5AE05","factsUrl":"https://aoctrl.com/api/mcp/products/3RA9012-5AE05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens GM-SET contactor assembly, 3-pole non-reversing, 24 A, with 1NO-3NC auxiliary contacts and integral surge suppression, order code 3RA9012-5AE05.","salesMarkdown":"## What this GM-SET contactor is The Siemens 3RA9012-5AE05 is a GM-SET contactor assembly — a 3-pole, non-reversing contactor rated 24 A, with a 1NO-3NC auxiliary contact block and integral surge suppression built in. The GM-SET designation means it ships as a pre-assembled unit: contactor, aux contacts, and surge suppressor on one DIN-rail mountable base, ready to wire into a motor starter or general switching circuit. The 1NO-3NC auxiliary configuration gives you one normally-open and three normally-closed mirror contacts. That matters for feedback wiring: the NO picks up the 'run' status to a PLC input, while the three NC contacts can seal in a safety chain or interlock multiple starters. The integral surge suppression (varistor or RC snubber across the coil) means you don't need an add-on suppressor module — it's already in the package, saving a DIN-rail position and one wiring step.","metaTitle":"Siemens 3RA9012-5AE05 GM-SET Contactor, 3-Pole, 24A, 1NO-3NC","metaDescription":"Siemens 3RA9012-5AE05 GM-SET contactor assembly. 3-pole non-reversing, 24A, 1NO-3NC aux contacts, integral surge suppression. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"title":"3RA9012-5AE05","description":"GM-SET / ITEM NUMBER 11844 CONTACTOR, 3-POLE, NON-REVERSING WITH 1NO-3NC AUX CONTACTS, 24 17 AMP, WITH INTEGRAL SURGE SUP CONSISTING OF:","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"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=108642&mlfb=3RA9012-5AE05"},"ai":{"faq":[{"question":"Where can I buy the 3RA9012-5AE05?","answer":"The 3RA9012-5AE05 is sourced to order against an RFQ through independent distribution channels. Submit a request for quote to confirm availability and current pricing at the time of order."},{"question":"What is a Siemens GM-SET?","answer":"A GM-SET is a pre-assembled contactor package from Siemens that includes the contactor, auxiliary contact block, and surge suppressor on a single DIN-rail mountable base. It arrives ready to wire, saving panel space and assembly time."},{"question":"What does 1NO-3NC mean on this contactor?","answer":"1NO-3NC means the auxiliary contact block provides one normally-open contact and three normally-closed contacts. The NO contact is typically used for a run-status signal to a controller; the three NC contacts can be wired into safety circuits or interlocking logic."},{"question":"What are the specifications of the 3RA9012-5AE05?","answer":"The 3RA9012-5AE05 is a 3-pole, non-reversing contactor rated 24 A, with 1NO-3NC auxiliary contacts and integral surge suppression. It is a GM-SET assembly from Siemens."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA9012-5AE05","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/3RA9012-5AE05 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}