{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG4981-0C","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG4981-0C","canonicalUrl":"https://aoctrl.com/siemens/3UG4981-0C","factsUrl":"https://aoctrl.com/api/mcp/products/3UG4981-0C","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS sealable cover for insulation monitoring relays 3UG4581 and 3UG4582, 22.5 mm width, 107 mm depth, ambient -25 to +60 °C.","salesMarkdown":"The 3UG4981-0C is a sealable cover from the Siemens SIRIUS family, designed specifically for the 3UG4581 and 3UG4582 insulation monitoring relays. It snaps onto a 22.5 mm wide relay housing and adds a tamper-proof seal over the front adjustment dials and wiring access — a common requirement on mining, water, and process lines where an inspector or authority needs to lock the setpoint after commissioning. Mounts in any orientation, so it fits tight gland plates or vertical backplane runs without derating.","metaTitle":"3UG4981-0C SIRIUS sealable cover for 3UG4581/3UG4582, 22.5 m","metaDescription":"Sealable cover for Siemens SIRIUS insulation monitoring relays 3UG4581 and 3UG4582. Width 22.5 mm, ambient -25 to +60 °C. In current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Process / Temperature Controllers"],"specifications":{"Depth":"107 mm","Width":"22.5 mm","Height":"68 mm","Upwards":"0 mm","Forwards":"0 mm","Backwards":"0 mm","Downwards":"0 mm","At The Side":"0 mm","lifecycle_stage":"current","Product Function":"Cover","Mounting Position":"any","Product Brand Name":"SIRIUS","Substance Prohibitance (Date)":"05/01/2012","Ambient Temperature During Operation":"-25 ... +60 °C","reference code according to IEC 81346-2":"K"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3UG4981-0C/alternatives.json"},"ai":{"faq":[{"question":"What relays does this cover fit?","answer":"It is designed for the Siemens SIRIUS insulation monitoring relays 3UG4581 and 3UG4582."},{"question":"What is the operating temperature range?","answer":"Ambient temperature during operation is -25 to +60 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG4981-0C","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/3UG4981-0C 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}}