{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-1AA42-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-1AA42-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-1AA42-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-1AA42-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1110-1AA42-0DH0, switch disconnector in MCCB design, IEC frame 160, 4-pole, SD100, In=100 A, without overload or short-circuit protection, busbar connection, undervoltage release 208-230 V AC 50/60 Hz, 2 auxiliary switches HQ + 1 trip alarm switch HQ.","salesMarkdown":"It is not a circuit breaker — there is no overload or short-circuit release inside. The description explicitly states 'without overload protection' and 'without short-circuit protection'. This part is a manually operated isolating switch that makes and breaks load current but does not protect the downstream cable or load from faults. The 2 kA limited short-time withstand rating (1 s and 0.5 s) means it can survive a fault current long enough for an upstream breaker to clear it, but it will not trip itself. The integrated undervoltage release (UVR) is wired for 208-230 V AC 50/60 Hz. If the control voltage drops, the UVR opens the disconnector — a standard safety feature for motor circuits where loss of control power should drop the load. The main circuit connects via busbar connection at the front terminals — typical for a distribution panel where the disconnector feeds a busbar system rather than individual cables.","metaTitle":"Siemens 3VA1110-1AA42-0DH0 SENTRON Switch Disconnector, 100","metaDescription":"Siemens SENTRON 3VA1110-1AA42-0DH0 switch disconnector, 100 A rated continuous current, 4-pole, undervoltage release 208-230V AC, 2 aux + 1 trip alarm HQ contacts. Current producti","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":"Yes","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":"2 auxiliary switches + 1 trip alarm switch HQ","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":"3","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=523082&mlfb=3VA1110-1AA42-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1110-1AA42-0DH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1110-1AA42-0DH0 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the difference between this switch disconnector and a circuit breaker like 3VA1110-5EE32-0DC0?","answer":"The 3VA1110-1AA42-0DH0 is a switch disconnector with no overload or short-circuit protection — it only isolates the load. The 3VA1110-5EE32-0DC0 is a molded case circuit breaker with a TM220 thermal-magnetic release that provides LI protection (long-time and instantaneous). Both share the same 160 A frame, 100 A rating, and 4-pole configuration, but the breaker version adds overcurrent protection and has a different auxiliary contact configuration (2 aux switches, no trip alarm). If your BOM calls for a breaker, the -5EE32 variant is the functional equivalent with protection; if you only need"}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-1AA42-0DH0","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/3VA1110-1AA42-0DH0 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}}