{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9574-0JB23","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9574-0JB23","canonicalUrl":"https://aoctrl.com/siemens/3VA9574-0JB23","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9574-0JB23","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON TA3.1 circular conductor terminal voltage tap, internal, 2 cables, 3 units, 4/0-600 kcmil Cu/Al stranded, 42.4 Nm torque.","salesMarkdown":"The Siemens 3VA9574-0JB23 is a SENTRON TA3.1 circular conductor terminal — a voltage tap designed for internal use on 3VA55, 3VA65, and 3VA66 molded-case circuit breakers. It accepts two cables per terminal, supplied as a 3-unit pack. The wire range covers 4/0 AWG to 600 kcmil for both copper and aluminum stranded conductors, and 4/0 AWG to 600 kcmil for finely stranded copper. The stripped length is 1.0 in, and the terminal torque is 42.4 Nm for the 120-300 mm² / 120-185 mm² ranges. Mounts directly on the line-side or load-side lugs of the compatible 3VA breaker frame. No DIN-rail footprint — this is a lug-landing terminal, not a snap-on accessory. The 42.4 Nm torque spec means a calibrated torque wrench is required for termination; hand-tightening will not reach the listed value. The terminal does not include a control wire tap — it is a power conductor connection only. Use separate control wiring for auxiliary or shunt-trip circuits.","metaTitle":"Siemens 3VA9574-0JB23 SENTRON TA3.1 Wire Connector, 2 x 4/0-","metaDescription":"Siemens 3VA9574-0JB23 SENTRON TA3.1 circular conductor terminal voltage tap. Accepts 4/0-600 kcmil Cu/Al stranded. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Stranded":"120 300 mm2: 42.4 Nm","Accessories":"Wire connector","Finely Stranded":"120 185 mm2: 42.4 Nm","Product version":"circular conductor terminal voltage tap, 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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/58a4612805ec3491b2d113bd6cef1c74.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1414086&mlfb=3VA9574-0JB23","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA9574-0JB23/alternatives.json"},"ai":{"faq":[{"question":"What wire sizes does 3VA9574-0JB23 accept?","answer":"It accepts 4/0 AWG to 600 kcmil copper or aluminum stranded, and 4/0 AWG to 600 kcmil finely stranded copper. The terminal torque is 42.4 Nm for the 120-300 mm² stranded range."},{"question":"Which circuit breakers does 3VA9574-0JB23 fit?","answer":"It is designed for the Siemens SENTRON 3VA55, 3VA65, and 3VA66 molded-case circuit breaker frames."},{"question":"Where can I buy 3VA9574-0JB23?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9574-0JB23","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/3VA9574-0JB23 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}}