{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW4773-0NB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW4773-0NB00","canonicalUrl":"https://aoctrl.com/siemens/3RW4773-0NB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RW4773-0NB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW4773-0NB00 power semiconductor module, 600 V, 230 A, NTC thermistor, for 3RW4073 soft starter series.","salesMarkdown":"The 3RW4773-0NB00 is a power semiconductor module — not a standalone soft starter, but the internal thyristor stack that handles the motor current inside a 3RW4073 frame. It's rated 600 V and 230 A, with an integrated NTC thermistor for temperature monitoring of the semiconductor junction. This is the replaceable power section of the soft starter. When a 3RW4073 unit suffers a semiconductor failure in the field, swapping this module avoids replacing the entire starter assembly — a common MRO move for panel builders maintaining Siemens SIRIUS soft starter installations. ## Lifecycle and sourcing posture Sourced through authorized distribution channels against an RFQ. ## Compliance and documentation Substance prohibitance date is 05/01/2012, indicating RoHS compliance from that date forward. The module carries the standard Siemens CE/UKCA marking for the European market.","metaTitle":"Siemens 3RW4773-0NB00 Soft Starter Module, 600 V, 230 A","metaDescription":"Siemens 3RW4773-0NB00 power semiconductor module for 3RW4073 soft starters. 600 V, 230 A, NTC thermistor. Active production, quoted to order. Buy 3RW4773-0NB00.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Soft Starters"],"specifications":{"title":"3RW4773-0NB00","description":"Power semiconductor module NTC 600 V, for 3RW4073, 230 A","lifecycle_stage":"current","Product Designation":"Power semiconductor module","Substance Prohibitance (Date)":"05/01/2012"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a969b3ace8360db266b90b3b7b075fb6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=884185&mlfb=3RW4773-0NB00"},"ai":{"faq":[{"question":"What is the 3RW4773-0NB00 used for?","answer":"It is the power semiconductor module (thyristor stack with NTC thermistor) inside the Siemens 3RW4073 soft starter, rated 600 V and 230 A. It replaces the power section when the original unit fails."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW4773-0NB00","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/3RW4773-0NB00 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}}