{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA36-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA36-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA36-0CC0, switch disconnector in MCCB design, 3-pole, 125 A rated continuous current, 690 V AC / 500 V DC, IP40 front, with undervoltage release 120-127 V AC, 2 auxiliary switches HQ.","salesMarkdown":"The Siemens SENTRON 3VA1112-1AA36-0CC0 is a 3-pole switch disconnector in MCCB design, rated for 125 A continuous current (Iu) with a max operational voltage of 690 V AC and 500 V DC. It's built on the 3VA1 frame (160 A frame size) and comes configured as an SD100 — meaning it provides isolation and switching but no overload or short-circuit protection. That makes it a pure disconnect for a panel feeder or branch circuit where upstream protection already exists. For motor loads, you'd size it to the motor FLA plus any continuous auxiliary loads — 125 A covers a 55 kW motor at 400 V (roughly 104 A FLA) with headroom. The 690 V AC rating means it's suitable for 400 V and 480 V distribution panels; the 500 V DC rating opens it for DC bus or battery-bank isolation. The 2 kA limited short-time withstand (1 s and 0.5 s) tells you this disconnect can survive a fault current up to 2 kA for those durations while the upstream breaker clears. That's a modest rating — it's not a high-fault device. It expects to be fed from a breaker or fuse with a lower let-through, typical in secondary distribution or sub-panel applications. The 76.2 mm width is a standard 3-pole MCCB footprint (roughly 3 x 25.4 mm per pole) — it fits most DIN-rail or direct-panel mounting patterns for 160 A frame disconnects. Front terminals accept lug or clamp connections; the terminal arrangement is front-accessed for bus-bar or cable entry. The UVR coil draws from the control circuit — verify your 120-127 V AC supply can source the inrush without dropping below the release threshold.","metaTitle":"Siemens 3VA1112-1AA36-0CC0 SENTRON Switch Disconnector, 125","metaDescription":"Siemens SENTRON 3VA1112-1AA36-0CC0 switch disconnector, 125 A rated continuous current, 3-pole, IP40 front. Undervoltage release 120-127V AC. Current lifecycle stage. Quoted to ord","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":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Rated continuous current Iu":"125 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":"2","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"Terminal 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=17212&mlfb=3VA1112-1AA36-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0CC0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3VA1112-1AA36-0CC0?","answer":"The listed depth is 70 mm."},{"question":"What is the width of 3VA1112-1AA36-0CC0?","answer":"The listed width is 76.2 mm."},{"question":"Will 3VA1112-1AA36-0CC0 drop into a panel specified around 5SQ2370-2YA05?","answer":"No — the 5SQ2370-2YA05 is a 3-pole miniature circuit breaker (MCB) with 55 mm depth and IP20 rating, while this is a 125 A switch disconnector in MCCB design with 70 mm depth and IP40 front. They serve different functions and have different mounting footprints; rewiring and panel cutout changes would be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0CC0","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/3VA1112-1AA36-0CC0 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}}