{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9573-0JB23","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9573-0JB23","canonicalUrl":"https://aoctrl.com/siemens/3VA9573-0JB23","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9573-0JB23","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON TA3.1 circular conductor terminal, 3VA9573-0JB23, for 2 cables, 3 units, 4/0-600 kcmil stranded copper/aluminum, 42.4 Nm torque.","salesMarkdown":"The Siemens SENTRON 3VA9573-0JB23 is a TA3.1 circular conductor terminal — a wire connector accessory for the 3VA55, 3VA65, and 3VA66 molded-case circuit breaker families. It ships as a set of three units, each accepting two cables, so you can land both line and load conductors on the same breaker pole without piggyback lugs. The terminal accepts stranded copper or aluminum from 4/0 AWG up to 600 kcmil — that's a wide range covering typical feeder and large branch-circuit conductors. Finely stranded copper (Class B or similar) is also supported, same 4/0 to 600 kcmil range. The stripped length is 1.0 inch, so when you prep the wire, that's the bare conductor you need exposed before insertion. Torque spec is 42.4 Nm for both stranded and finely stranded sizes, which is a firm pull — use a calibrated torque wrench, not a guess.","metaTitle":"Siemens SENTRON 3VA9573-0JB23 Wire Connector TA3.1, 2 x 4/0-","metaDescription":"Siemens SENTRON 3VA9573-0JB23 circular conductor terminal TA3.1 for 2 cables, 3 units. Accepts 4/0-600 kcmil stranded copper/aluminum. Active production. Sourced to order against R","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"title":"3VA9573-0JB23","Stranded":"120 300 mm2: 42.4 Nm","Accessories":"Wire connector","description":"Wire connector TA3.1 2 x 4/0…600 kcmil for 2 cables 3 units accessories for: 3VA55/3VA65/3VA66","Finely Stranded":"120 185 mm2: 42.4 Nm","Product version":"circular conductor terminal, internal, 2 cables, 3 units","Stripped Length":"1.0 in","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"accessories","Designation / Of The Terminal":"TA3.1","For Copper Cable / Stranded / Maximum":"600 kcmil","For Copper Cable / Stranded / Minimum":"4/0 AWG","For Aluminum Cable / Stranded / Maximum":"600 kcmil","For Aluminum Cable / Stranded / Minimum":"4/0 AWG","For Copper Cable / Finely Stranded / Maximum":"600 kcmil","For Copper Cable / Finely Stranded / Minimum":"4/0 AWG","Type Of Electrical Connection / With Control Wire Tap":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$74.93","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/094b65de028cb58ac4befbb483ddb400.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1414084&mlfb=3VA9573-0JB23"},"ai":{"faq":[{"question":"Where can I buy 3VA9573-0JB23 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What wire sizes does 3VA9573-0JB23 accept?","answer":"It accepts stranded copper or aluminum from 4/0 AWG minimum to 600 kcmil maximum, and finely stranded copper in the same range. The stripped length is 1.0 inch, and the terminal torque spec is 42.4 Nm."},{"question":"Which Siemens breakers is 3VA9573-0JB23 compatible with?","answer":"It is designed as an accessory for the Siemens SENTRON 3VA55, 3VA65, and 3VA66 molded-case circuit breaker families."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9573-0JB23","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/3VA9573-0JB23 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}}