{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9503-0JG23","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9503-0JG23","canonicalUrl":"https://aoctrl.com/siemens/3VA9503-0JG23","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9503-0JG23","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON TA3.1 circular conductor terminal voltage tap, 3 units, 4/0-600 kcmil stranded, 375 lb-in torque, for 3VA15/25 1000 frame.","salesMarkdown":"The Siemens 3VA9503-0JG23 is an active-production SENTRON TA3.1 circular conductor terminal voltage tap, sold as a set of three units. It's the accessory that brings a control-wire tap-off to the main lugs on 3VA15 and 3VA25 1000 A frame breakers — you land the phase conductors on the busbar side and pick off a smaller wire for the shunt trip, undervoltage release, or auxiliary power supply without an extra terminal block. ## Panel integration This is a lug-body accessory, not a DIN-rail component — it bolts directly to the breaker line-side or load-side studs inside the panel. The three-unit pack covers a 3-pole breaker. Because it adds height above the breaker terminals, verify enclosure depth clearance before wiring; the voltage tap wire exits through a secondary compression port in the lug body. Lifecycle status is active — Siemens lists this order code as current production. No successor or replacement has been issued.","metaTitle":"Siemens 3VA9503-0JG23 SENTRON TA3.1 Voltage Tap, 4/0-600 kcm","metaDescription":"Siemens 3VA9503-0JG23 SENTRON circular conductor terminal voltage tap TA3.1. Accepts 4/0-600 kcmil stranded copper or aluminum, 375 lb-in torque. Active, available to order against","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"title":"3VA9503-0JG23","Stranded":"4/0 - 600 kcmil: 375 lb-in","Accessories":"Wire connector","description":"Wire connector TA3.1 2 x 120…300 mm² for 2 cables with control wire voltage tap-off 3 units accessories for: 3VA15/25 1000","Finely Stranded":"4/0 - 600 kcmil: 375 lb-in","Stripped Length":"1.0 in","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"accessories","Design Of The Product":"circular conductor terminal voltage tap 3 units","Designation / Of The Terminal":"TA3.1","For Copper Cable / Stranded / Maximum":"600","For Copper Cable / Stranded / Minimum":"4/0","For Aluminum Cable / Stranded / Maximum":"600","For Aluminum Cable / Stranded / Minimum":"4/0","For Copper Cable / Finely Stranded / Maximum":"600","For Copper Cable / Finely Stranded / Minimum":"4/0","Type Of Electrical Connection / With Control Wire Tap":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3c3142d81b44c75d0d23648be29cff50.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=645956&mlfb=3VA9503-0JG23"},"ai":{"faq":[{"question":"What cable sizes does the 3VA9503-0JG23 accept?","answer":"It accepts stranded copper or aluminum from 4/0 AWG up to 600 kcmil, with a termination torque of 375 lb-in and a strip length of 1.0 in. The same range applies to finely stranded conductors."},{"question":"What breakers is the 3VA9503-0JG23 voltage tap designed for?","answer":"It is designed for the Siemens SENTRON 3VA15 and 3VA25 1000 A frame breakers, providing a control-wire tap-off from the main phase lugs."},{"question":"Where can I buy 3VA9503-0JG23 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and delivery commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9503-0JG23","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/3VA9503-0JG23 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}}