{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-1AA42-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-1AA42-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-1AA42-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-1AA42-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1110-1AA42-0AC0, switch disconnector in MCCB design, IEC frame 160, 4-pole, 100 A, without overload or short-circuit protection, with 2 auxiliary switches HQ, busbar connection, front terminals.","salesMarkdown":"The Siemens SENTRON 3VA1110-1AA42-0AC0 is a 4-pole switch disconnector in an MCCB-style housing, rated for 100 A continuous at any temperature from 40 °C through 70 °C — no derating needed across that entire span. This is a pure disconnector — it provides no overload or short-circuit protection. The absence of a trip indicator, undervoltage release, and voltage trigger confirms it is intended solely for isolation and switching under load, not for circuit protection. The main circuit connects via busbar connections at front terminals, which means it mounts into a panel bus system rather than accepting individual cable lugs. An optional motor drive can be added for remote operation. The 3VA1110-1AA42-0AC0 occupies a 101.6 mm wide, 130 mm tall, 70 mm deep footprint — the same depth as the 3-pole variant in the same frame, so a panel drilled for a 3-pole 3VA1 will accept this 4-pole unit without re-drilling the mounting plate. Front terminals mean all wiring is accessible from the front; no rear access needed. IP40 on the front protects against tools and small objects; the rest of the device relies on the enclosure for environmental sealing. The closest functional peer is the 3VA1110-5ED36-0AC0, a 3-pole molded case circuit breaker with thermal-magnetic protection (TM210, LI characteristic) rated for 100 A at 40 °C. That part provides overload and short-circuit protection; this disconnector does not. The disconnector uses busbar connections; the MCCB uses box terminals on both sides. The MCCB has a higher mechanical life (20,000 cycles vs 15,000) and lower power loss (25 W vs 38 W). The disconnector carries a higher DC voltage rating (600 V vs 500 V). If your BOM calls for a 4-pole disconnector without protection, this is the correct part. If you need overcurrent protection in the same frame, the 3VA1110-5ED36-0AC0 is the MCCB equivalent — but it is 3-pole only, so a 4-pole application requires a different solution.","metaTitle":"Siemens 3VA1110-1AA42-0AC0 SENTRON Switch Disconnector, 100","metaDescription":"Siemens SENTRON 3VA1110-1AA42-0AC0 switch disconnector, 100 A continuous at 40-70°C, 4-pole, 690 V AC / 600 V DC. Active production. Quoted 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":"101.6 mm","Height":"130 mm","at 40 °C":"100 A","at 45 °C":"100 A","at 50 °C":"100 A","at 55 °C":"100 A","at 60 °C":"100 A","at 65 °C":"100 A","at 70 °C":"100 A","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Switch disconnector","Undervoltage Release":"No","Design Of The Product":"in MCCB design","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"38 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"Without auxiliary release","Insulation Voltage / Rated Value":"800 V","protection class IP / on the front":"IP40","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","Product Function / Communication Function":"No","Undervoltage Release With Leading Contact":"No","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","number of CO contacts / for auxiliary contacts":"2","Mechanical Service Life (Operating 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=459207&mlfb=3VA1110-1AA42-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1110-1AA42-0AC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1110-1AA42-0AC0 and get a price?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"Will 3VA1110-1AA42-0AC0 drop into a panel specified for 3VA1110-5ED36-0AC0 without rewiring?","answer":"The disconnector uses busbar connections at front terminals, while the MCCB uses box terminals on both sides — so the connection method differs. The mounting footprint shares the same depth (70 mm) and height (130 mm), but the 4-pole disconnector is wider (101.6 mm vs 76.2 mm), so the panel cutout and busbar layout must accommodate the extra pole."},{"question":"What is the continuous current rating of this disconnector?","answer":"It is rated for 100 A continuous at any temperature from 40 °C through 70 °C — no derating needed across that entire span."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-1AA42-0AC0","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/3VA1110-1AA42-0AC0 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}}