{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW4774-6SB40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW4774-6SB40","canonicalUrl":"https://aoctrl.com/siemens/3RW4774-6SB40","factsUrl":"https://aoctrl.com/api/mcp/products/3RW4774-6SB40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW4774-6SB40 control unit, 230 V, for 3RW4074 soft starter, Size S12, screw terminals, active production.","salesMarkdown":"## What this control unit does in the starter assembly The 3RW4774-6SB40: This is the 230 V control unit for the Siemens 3RW4074 soft starter in Size S12 — it's the logic and firing board that manages the SCR gating, ramp timing, and bypass contactor sequence. The screw terminals on this unit accept the control wiring from the PLC or start/stop station; the power section (thyristor module and bypass) is a separate assembly that mates to this board. ## Compliance and documentation The part carries the standard Siemens declaration of conformity for the 3RW4 series; the product designation on the nameplate reads \"Control unit\" — match this against the PO line description to avoid warehouse mix-ups with the power module.","metaTitle":"Siemens 3RW4774-6SB40 Soft Starter Control Unit, 230 V","metaDescription":"Siemens 3RW4774-6SB40 control unit for 3RW4074 soft starter, 230 V, Size S12, screw terminals. Active production, quoted to order against BOM. RFQ for volume.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Soft Starters"],"specifications":{"title":"3RW4774-6SB40","description":"Control unit 230 V for 3RW4074, Size S12 with screw terminals","lifecycle_stage":"current","Product Designation":"Control unit","Substance Prohibitance (Date)":"05/01/2012"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/492dc5beff5b6c7c2d2319b0ed5c7b7a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=884191&mlfb=3RW4774-6SB40"},"ai":{"faq":[{"question":"What is 3RW4774-6SB40's product designation?","answer":"The product designation is Control unit — it is the logic and firing board for the 3RW4074 soft starter, not the power module or bypass contactor."},{"question":"What compliance documentation does Siemens provide for 3RW4774-6SB40?","answer":"The standard declaration of conformity for the 3RW4 series applies; no separate UL or CSA listing is cited in this entry."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW4774-6SB40","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/3RW4774-6SB40 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}