{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW4743-0VC70","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW4743-0VC70","canonicalUrl":"https://aoctrl.com/siemens/3RW4743-0VC70","factsUrl":"https://aoctrl.com/api/mcp/products/3RW4743-0VC70","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW4743-0VC70 firing PCB, 460 V, for 3RW44 soft starter, Size 3 for 3RW4443, printed circuit board subassembly.","salesMarkdown":"## What this firing PCB does for the 3RW44 The 3RW4743-0VC70 is the firing printed circuit board for the Siemens 3RW44 soft starter family, specifically the Size 3 variant that mates with the 3RW4443 base unit. It handles the gate-drive signals for the thyristor stack at 460 V line voltage. This is a subassembly, not a complete soft starter — it replaces the control board inside the 3RW4443 enclosure when the firing circuit fails or needs a revision swap. The 460 V rating means it's wound for the higher-voltage winding of the 3RW44 line, not the 230 V or 400 V variants. ## Compliance and documentation Substance prohibitance date of 03/01/2017 confirms RoHS compliance from that date forward. The PCB carries the standard Siemens declaration of conformity for the 3RW44 series; no separate UL or IEC listing is recorded for this subassembly alone.","metaTitle":"Siemens 3RW4743-0VC70 Firing PCB for 3RW44 Soft Starter","metaDescription":"Siemens 3RW4743-0VC70 firing PCB, 460 V for 3RW44 soft starter, Size 3 for 3RW4443. Active production, sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Soft Starters"],"specifications":{"title":"3RW4743-0VC70","description":"Firing PCB 460 V for 3RW44, Size 3 for 3RW4443","lifecycle_stage":"current","Product Designation":"Printed circuit board","Substance Prohibitance (Date)":"03/01/2017"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/14b5ce254b1abe5adb7896a123f7f79f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=884134&mlfb=3RW4743-0VC70"},"ai":{"faq":[{"question":"What is the product designation of 3RW4743-0VC70?","answer":"The product designation is Printed circuit board — it is a subassembly, not a complete soft starter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW4743-0VC70","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/3RW4743-0VC70 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}}