{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA9012-5BN40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA9012-5BN40","canonicalUrl":"https://aoctrl.com/siemens/3RA9012-5BN40","factsUrl":"https://aoctrl.com/api/mcp/products/3RA9012-5BN40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA9012-5BN40 mushroom pushbutton, illuminated red, push-pull, 2NC, cage clamp connection.","salesMarkdown":"The Siemens 3RA9012-5BN40 is a mushroom-head pushbutton with an illuminated red actuator, push-pull operation, and two normally-closed (2NC) contacts terminated via cage clamp connection. It's part of the SIRIUS accessory family, designed for control stations and panel-mount E-stop or reset applications where a maintained-pull-to-reset action is required. The cage clamp connection accepts solid or ferruled stranded wire without screw tightening — a time-saver on the panel-wiring bench and more vibration-resistant than a screw terminal in a nacelle cabinet.","metaTitle":"Siemens 3RA9012-5BN40 Mushroom Pushbutton, Illuminated Red","metaDescription":"Siemens 3RA9012-5BN40 mushroom pushbutton, illuminated red, push-pull, 2NC contacts, cage clamp connection. Current lifecycle stage.","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=72741&mlfb=3RA9012-5BN40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA9012-5BN40/alternatives.json"},"ai":{"faq":[{"question":"What are the specifications of 3RA9012-5BN40?","answer":"The 3RA9012-5BN40 is a mushroom pushbutton, illuminated red, push-pull operation, with 2NC contacts and cage clamp connection. Its lifecycle stage is current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA9012-5BN40","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/3RA9012-5BN40 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}}