{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA32-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA32-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA32-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA32-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA32-0HH0, switch disconnector, 3-pole, 125 A, IEC frame 160, shunt trip (STL) 12-30V DC / 24 V AC, 2 auxiliary switches + 1 trip alarm switch HQ, busbar connection, front terminal.","salesMarkdown":"## Switch disconnector, not a breaker The Siemens SENTRON 3VA1112-1AA32-0HH0 is a 3-pole switch disconnector in the 3VA1 IEC frame 160, rated 125 A continuous without overload or short-circuit protection — it is a disconnect, not a molded case circuit breaker. That distinction matters for BOM fit: this part provides visible isolation and switching under load, but upstream protection (fuse or MCCB) must cover the fault-clearing duty. The shunt trip (STL) operates on 12–30 V DC or 24 V AC 50/60 Hz, letting a remote E-stop or PLC output drop the load without opening the door. ## Panel fit: same footprint as the 3VA1 MCCB Dimensions: 70 mm deep, 76.2 mm wide, 130 mm high — identical to the 3VA1 MCCB siblings. IP40 on the front face, so it belongs in a closed enclosure.","metaTitle":"Siemens 3VA1112-1AA32-0HH0 Switch Disconnector, 125 A, 3-Pol","metaDescription":"Siemens SENTRON 3VA1112-1AA32-0HH0 switch disconnector, 125 A, 3-pole, shunt trip STL. Active lifecycle, available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","at 40 °C":"125 A","at 45 °C":"125 A","at 50 °C":"125 A","at 55 °C":"125 A","at 60 °C":"125 A","at 65 °C":"125 A","at 70 °C":"125 A","Trip Indicator":"Yes","Number Of Poles":"3","Product version":"in MCCB design","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Switch disconnector","Undervoltage Release":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"38 W","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","rated insulation voltage Ui":"800 V","Design Of The Auxiliary Release":"Shunt trip (STL)","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Product Function / Communication Function":"No","Undervoltage Release With Leading Contact":"No","Product Extension / Optional / Motor Drive":"Yes","number of CO contacts / for auxiliary contacts":"3","Mechanical Service Life (Switching Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"busbar connection","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=281929&mlfb=3VA1112-1AA32-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA32-0HH0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1112-1AA32-0HH0 drop into a panel specified for 3VA1112-5EE32-0AA0?","answer":"Yes — the dimensions (70 x 76.2 x 130 mm), front-terminal arrangement, and busbar connection are identical. No rewiring or gland-plate modification needed."},{"question":"What is the shunt trip voltage for this switch disconnector?","answer":"The shunt trip (STL) operates on 12–30 V DC or 24 V AC 50/60 Hz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA32-0HH0","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/3VA1112-1AA32-0HH0 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}}