{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-1AA42-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-1AA42-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-1AA42-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-1AA42-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1 switch disconnector, IEC frame 160, 4-pole SD100, In=100 A, without overload or short-circuit protection, undervoltage release (UVR) 120-127 V AC 50/60 Hz, busbar connection, front terminal, IP40 front.","salesMarkdown":"The Siemens 3VA1110-1AA42-0CA0 is a SENTRON 3VA1 switch disconnector in the IEC frame 160 footprint, rated for 100 A continuous current (Iu) with 4 poles. It carries no overload or short-circuit protection — the designation \"SD100\" and the description confirm it is a pure disconnect, not a molded case circuit breaker. The built-in undervoltage release (UVR) is factory-set for 120-127 V AC 50/60 Hz, so the switch drops open when control voltage falls below the dropout threshold. This makes it a load-break switch for isolation and safety disconnection, not a protective device. Rated continuous current Iu is 100 A — that is the maximum current the switch can carry continuously without exceeding temperature limits. The 4-pole configuration handles three-phase plus neutral (or a second pole for DC switching). Max rated operational voltage is 690 V AC 50/60 Hz and 600 V DC, so it covers standard 400/480 VAC panels and many DC bus applications up to 600 V. The main circuit connection is busbar connection with front terminals — designed for direct busbar mounting or panel wiring. The 4-pole width (101.6 mm) is wider than the 3-pole variants (76.2 mm), so a panel cutout or DIN-rail layout planned for a 3-pole MCCB will need extra space. The UVR coil wiring terminates at the front; no auxiliary contacts are included (auxiliary contact version is \"Without\"). An optional motor drive can be added (product extension optional).","metaTitle":"Siemens 3VA1110-1AA42-0CA0 Switch Disconnector, 100 A, 4-Pol","metaDescription":"Siemens SENTRON 3VA1110-1AA42-0CA0 switch disconnector, 100 A rated continuous current, 4-pole, undervoltage release 120-127 V AC. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","Height":"130 mm","Limited To 1 S":"2 kA","Trip indicator":"No","Number of poles":"4","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":"600 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=435641&mlfb=3VA1110-1AA42-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1110-1AA42-0CA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1110-1AA42-0CA0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source to 3VA1110-1AA42-0CA0?","answer":"The closest functional peer is the 3VA1112-5EF32-0CA0, but it is a 3-pole line-protection MCCB with a TM240 release and lug terminals — not a pure switch disconnector. The 3VA1110-1AA42-0CA0 is a 4-pole disconnect with UVR and busbar connection; the peer adds overcurrent protection and changes the connection type. They are not drop-in substitutes without rewiring and re-evaluating the protection scheme."},{"question":"Will 3VA1110-1AA42-0CA0 drop into a panel specified around 3VA1112-5EF32-0CA0 without rewiring?","answer":"No. The 3VA1110-1AA42-0CA0 is 4-pole (101.6 mm wide) versus the 3-pole peer (76.2 mm wide), and uses busbar connection instead of lug terminals. The panel cutout and wiring will need modification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-1AA42-0CA0","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/3VA1110-1AA42-0CA0 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}}