{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU5900-1C","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU5900-1C","canonicalUrl":"https://aoctrl.com/siemens/3RU5900-1C","factsUrl":"https://aoctrl.com/api/mcp/products/3RU5900-1C","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU5900-1C cable release with holder for RESET, 600 mm long, for overload relay sizes S00 through S12.","salesMarkdown":"## What the cable release does in a panel The 3RU5900-1C is a remote reset cable for Siemens SIRIUS overload relays — it lets you mount the reset actuator on a panel door or enclosure cover while the relay itself sits deeper in the cabinet on a DIN rail. The 600 mm cable length gives enough reach to route from the relay face to a front-panel reset button without a splice, keeping the door wiring clean. ## Relay compatibility and sizing This cable release fits SIRIUS overload relay frames S00, S0, S2, and S3 — that covers the 3RU11, 3RB10, 3RB20, and 3RB21 series across the full current range those sizes serve. The holder is designed for the RESET function, so it works with both manual and auto-reset modes on the relay; the cable transmits the mechanical stroke from the door actuator to the relay's reset plunger. ## Environmental limits for storage and operation During operation the cable release is rated for -20 to +70 °C, matching the typical enclosure ambient inside a motor control centre.","metaTitle":"Siemens 3RU5900-1C SIRIUS Overload Relay Cable Release","metaDescription":"Siemens 3RU5900-1C SIRIUS cable release with holder for RESET, 600 mm length, fits S00-S12 overload relays. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"title":"3RU5900-1C","description":"Cable release with holder size S00...S12 for 3RU11/3RB10/3RB20/3RB21","During Storage":"-50 ... +80°C","lifecycle_stage":"current","During Operation":"-20 ... +70°C","Product Brand Name":"SIRIUS","Product Designation":"cable release with holder for RESET","Design Of The Product":"600 mm long","Size Of Overload Relay":"S00, S0, S2, S3"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5273ae3d1c28ed6a6c996652a4d54a5a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621477&mlfb=3RU5900-1C"},"ai":{"faq":[{"question":"What overload relays does 3RU5900-1C fit?","answer":"It fits SIRIUS overload relay sizes S00, S0, S2, and S3, specifically the 3RU11, 3RB10, 3RB20, and 3RB21 series."},{"question":"How long is the cable on 3RU5900-1C?","answer":"The cable is 600 mm long, measured from the relay connection point to the reset holder."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU5900-1C","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/3RU5900-1C 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}}