{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW4758-6SC44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW4758-6SC44","canonicalUrl":"https://aoctrl.com/siemens/3RW4758-6SC44","factsUrl":"https://aoctrl.com/api/mcp/products/3RW4758-6SC44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW4758-6SC44 control unit, 230 V, screw terminals, for 3RW4458 soft starter, current lifecycle stage.","salesMarkdown":"## What this control unit does in the starter assembly The 3RW4758-6SC44 is a control unit — the logic board that triggers the SCRs in the 3RW4458 soft starter. It runs on 230 V control supply and terminates through screw terminals, so you land the control wiring directly without a separate connector kit. ## Voltage match and terminal style — the fit check Screw terminals mean you can land solid or stranded wire with a standard slotted driver. No push-in or spring-clamp tool needed, which is handy for retrofit swaps where the existing wiring is already stripped for screw clamps. ## Compliance documentation on record The substance prohibitance date is 05/01/2012, which aligns with RoHS compliance — the control unit meets the EU restriction on hazardous substances effective from that date. REACH and UL documentation would be part of the Siemens standard declaration package; confirm with the supplier if a specific certificate is needed for your QA gate.","metaTitle":"Siemens 3RW4758-6SC44 Soft Starter Control Unit, 230 V","metaDescription":"Siemens 3RW4758-6SC44 control unit for 3RW4458 soft starter, 230 V, screw terminals. Active production lifecycle. Sourced to order against BOM. RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Soft Starters"],"specifications":{"lifecycle_stage":"current","Product Designation":"Control unit","Substance Prohibitance (Date)":"05/01/2012"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5f85935be832335833d05a2fc6f2ea68.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=884171&mlfb=3RW4758-6SC44","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RW4758-6SC44/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RW4758-6SC44's product designation?","answer":"It is a control unit — the logic/trigger board for the 3RW4458 soft starter. It is not the power module; it handles the firing angle control and protection logic."},{"question":"What compliance documentation does Siemens provide for 3RW4758-6SC44?","answer":"Siemens typically provides CE, UKCA, and UL documentation as part of the standard product package — request the specific declaration of conformity from your supplier if your QA process requires it."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW4758-6SC44","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/3RW4758-6SC44 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}}