{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA1811-8YA04-1AC0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA1811-8YA04-1AC0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RA1811-8YA04-1AC0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RA1811-8YA04-1AC0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIGUARD safety combination, order code 3RA1811-8YA04-1AC0-ZX95, DC 230 V, screw terminals, multi-pack of 32 pieces.","salesMarkdown":"The Siemens 3RA1811-8YA04-1AC0-ZX95 is a SIGUARD safety combination unit rated for DC 230 V control voltage, with screw-type terminals. It is part of the 3RA18 series designed for compact safety switching in industrial control panels — combining a contactor and a safety relay in one housing to reduce wiring and panel space. The DC 230 V rating governs the control coil voltage — a safety combination that picks up and seals on a 230 VDC supply. If your panel runs a 230 VDC control bus (common in some industrial DC grids or battery-backed systems), this unit drops in without an additional transformer or DC-DC converter. The screw terminals match standard ring or fork lug terminations; no special tooling needed. ## Deployment context It integrates a contactor and a safety relay in one package, so it handles both the safety logic (e-stop, guard door monitoring) and the load switching in a single device — reducing the component count in a safety circuit and simplifying wiring to the motor or actuator.","metaTitle":"Siemens 3RA1811-8YA04-1AC0-ZX95 SIGUARD Safety Combination","metaDescription":"Siemens 3RA1811-8YA04-1AC0-ZX95 SIGUARD safety combination, DC 230V, screw terminals. Current lifecycle stage. Sourced to order against RFQ.","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=371335&mlfb=3RA1811-8YA04-1AC0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA1811-8YA04-1AC0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"Is 3RA1811-8YA04-1AC0-ZX95 available via RFQ confirmation and available for immediate shipment?","answer":"Stock status and shipment timing vary. This part is sourced to order against an RFQ; availability is confirmed when the quote is issued."},{"question":"Can 3RA1811-8YA04-1AC0-ZX95 be used as a direct replacement for a standard 3RA1811 safety combination?","answer":"The -ZX95 suffix indicates a multi-pack variant (32 pieces) with screw terminals and DC 230 V control. It is functionally identical to the base 3RA1811-8YA04 in terms of safety switching and mounting, but the packaging and voltage are specific to this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA1811-8YA04-1AC0-ZX95","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/3RA1811-8YA04-1AC0-ZX95 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}}