{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-1AA32-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-1AA32-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-1AA32-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-1AA32-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1 IEC frame 160, 3-pole switch disconnector, In=100 A, without overload or short-circuit protection, undervoltage release 24 VDC, busbar connection front terminal, IP40 front.","salesMarkdown":"It provides no overload or short-circuit protection — this is a disconnect-only device, sized for isolation and switching duty where the upstream protection is already coordinated. The unit carries an undervoltage release (UVR) for 24 VDC, which drops the contacts when control voltage is lost, adding a remote trip capability for safety circuits or emergency-off chains. Rated continuous current Iu is 100 A — this is the maximum current the disconnector can carry continuously without exceeding its thermal limits. It is not a breaker rating; the part has no overcurrent release, so the 100 A figure governs the load-side conductor sizing and the upstream protection coordination. Maximum rated operational voltage is 690 VAC 50/60 Hz and 500 VDC, covering standard 400 V three-phase networks and many DC bus applications. ## Undervoltage release and control wiring The integrated undervoltage release (UVR) is designed for 24 VDC control. When the control voltage falls below the dropout threshold, the release mechanism trips the disconnector open. The UVR does not include a leading contact, so the release coil sees full inrush on energization — verify the 24 VDC supply can handle the pickup current without sag. No auxiliary contacts are fitted; if status feedback is needed, the optional auxiliary contact block must be added separately. The 76.2 mm width (3-pole, 25.4 mm per pole) matches the standard SENTRON 3VA1 frame footprint; it occupies the same panel cutout as the equivalent MCCB version.","metaTitle":"Siemens SENTRON 3VA1110-1AA32-0BA0 Switch Disconnector, 100","metaDescription":"Siemens SENTRON 3VA1110-1AA32-0BA0 switch disconnector, 3-pole, 100 A rated continuous current, 690 VAC/500 VDC max. Undervoltage release 24 VDC. Current production. Quoted to orde","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","Limited To 1 S":"2 kA","Trip indicator":"No","Number of poles":"3","Product version":"in MCCB design","Voltage trigger":"No","lifecycle_stage":"current","Limited To 0.5 S":"2 kA","Product brand name":"SENTRON","Product designation":"Switch disconnector","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"38 W","Auxiliary contact version":"Without","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Rated continuous current Iu":"100 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Number of CO contacts / for auxiliary contacts":"0","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","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=128857&mlfb=3VA1110-1AA32-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1110-1AA32-0BA0/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between this switch disconnector and the 3VA1112-5EF32-0CA0 MCCB?","answer":"The 3VA1112-5EF32-0CA0 is a molded case circuit breaker with a TM240 thermal-magnetic overcurrent release and a 125 A rating, providing both overload and short-circuit protection. The 3VA1110-1AA32-0BA0 is a switch disconnector only — no overcurrent release, no short-circuit protection. Both share the same 3VA1 frame size, 3-pole configuration, and 76.2 mm width, so they occupy the same panel cutout. The choice depends on whether the application needs integral protection (MCCB) or a pure disconnect for isolation (switch disconnector)."},{"question":"Where can I buy 3VA1110-1AA32-0BA0?","answer":"This part is sourced to order through independent industrial distribution. Submit an RFQ for current availability and pricing — confirmed at quote time, not before."},{"question":"What are the voltage ratings for this disconnector?","answer":"Maximum rated operational voltage is 690 VAC 50/60 Hz and 500 VDC, with a rated insulation voltage of 800 V."},{"question":"Does this part include auxiliary contacts?","answer":"No, the base version ships without auxiliary contacts. The product extension for an optional motor drive is available, but auxiliary contact blocks must be ordered separately."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-1AA32-0BA0","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/3VA1110-1AA32-0BA0 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}}