{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9403-0JC23","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9403-0JC23","canonicalUrl":"https://aoctrl.com/siemens/3VA9403-0JC23","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9403-0JC23","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON TA2.4 circular conductor terminal, wire connector 3VA9403-0JC23, for 2 x 70-300 mm² cables with control wire voltage tap-off, 600 kcmil max, 450 lb-in torque.","salesMarkdown":"The Siemens 3VA9403-0JC23 is a SENTRON TA2.4 circular conductor terminal — a wire connector designed to terminate two copper or aluminum cables into a single compression point on 3VA1 and 3VA2 molded-case circuit breakers in the 400 A and 630 A frame sizes. It is an accessory, not a standalone device; it mounts on the breaker's line or load side to consolidate parallel feeds. A built-in control wire voltage tap-off lets you pick off a lower-gauge sense or control voltage directly at the breaker terminal, eliminating a separate tap block on the bus. Stripped length is 1.2 in for the main conductor and 2.3 in for the tap, so the wire prep is straightforward — strip, insert, torque. The 3VA9403-0JC23 carries an active lifecycle status. It is a current-production SENTRON accessory, not a phase-out or NRND line. The 600 kcmil maximum on both copper and aluminum means this connector handles the full ampacity of a 400 A or 630 A breaker without needing a reducer or a second lug. The 2/0 AWG minimum covers the smaller parallel feeds often used in tap-off or subfeed configurations. If your wire size falls outside that range — say, 750 kcmil or 1/0 AWG — this terminal won't grip properly.","metaTitle":"Siemens 3VA9403-0JC23 SENTRON Wire Connector, 600 kcmil","metaDescription":"Siemens 3VA9403-0JC23 SENTRON TA2.4 wire connector for 2 x 70-300 mm² cables with control wire tap. Active production. Sourced to order. Stranded torque 450 lb-in.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Stranded":"450 lb-in","Accessories":"Wire connector","Finely Stranded":"450 lb-in","Stripped Length":"1.2 / 2.3 in","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"accessories","Design Of The Product":"circular conductor terminal","Designation / Of The Terminal":"TA2.4","For Copper Cable / Stranded / Maximum":"600 kcmil","For Copper Cable / Stranded / Minimum":"2/0 AWG","For Aluminum Cable / Stranded / Maximum":"600 kcmil","For Aluminum Cable / Stranded / Minimum":"2/0 AWG","For Copper Cable / Finely Stranded / Maximum":"600 kcmil","For Copper Cable / Finely Stranded / Minimum":"2/0 AWG","Type Of Electrical Connection / With Control Wire Tap":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$72.39","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c3201db13f9f308aa5f0158eddec6626.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=203568&mlfb=3VA9403-0JC23","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA9403-0JC23/alternatives.json"},"ai":{"faq":[{"question":"What is the stranded torque rating for 3VA9403-0JC23?","answer":"The stranded and finely stranded torque rating is 450 lb-in. That is a high clamping force — use a torque wrench set to that value, not a driver with a clutch."},{"question":"What cable sizes does 3VA9403-0JC23 accept?","answer":"It accepts stranded and finely stranded copper cable from 2/0 AWG to 600 kcmil, and aluminum cable in the same range. The stripped length is 1.2 in for the main conductor and 2.3 in for the control wire tap."},{"question":"Where can I buy 3VA9403-0JC23?","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 position."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9403-0JC23","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/3VA9403-0JC23 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}}