{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA36-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA36-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA36-0KH0, switch disconnector in MCCB design, 3-pole, 125 A rated continuous current, 690 V AC max, with shunt trip (STL) 220-250 V DC / 208-277 V AC, 2 auxiliary switches + 1 trip alarm switch HQ, front terminal connection, IP40 front.","salesMarkdown":"The Siemens 3VA1112-1AA36-0KH0 is a SENTRON switch disconnector built in an MCCB-style frame — it looks like a molded-case breaker but carries no overload or short-circuit protection. The front terminal connection and 3-pole design make it a straight swap-in for panel builders who need a manual disconnect with a trip-alarm signal. The auxiliary contact block carries two auxiliary switches (form C) plus one dedicated trip alarm switch (HQ) — that third contact closes only when the disconnect has opened on a trip signal, so a PLC or annunciator gets a hardwired fault indication without extra wiring. ## Duty and ratings Rated 125 A continuous, 690 V AC — that's full line voltage for most 400 V industrial panels, with headroom for 480 V or 600 V installations. The DC rating of 500 V covers common 400 V DC bus applications. The shunt trip coil is specified for 220-250 V DC or 208-277 V AC, so it works across both common control voltages without a separate power supply. The 2 kA short-time withstand (1 s and 0.5 s) tells you this disconnect is meant to sit behind a current-limiting breaker or fuse — it's not a stand-alone fault interrupter. It's rated for 15,000 mechanical operations, which is typical for a panel disconnect that sees daily switching but not high-cycle automation. Mounts on a DIN rail or panel, 76.2 mm wide (about 4.5 module spaces), 130 mm tall, 70 mm deep. Front terminals accept standard ring or fork lugs — no special busbar adapter required. The shunt trip (STL) is wired separately from the main circuit — it draws power only during the trip pulse, so it doesn't add a continuous load to the control transformer.","metaTitle":"Siemens 3VA1112-1AA36-0KH0 SENTRON Switch Disconnector, 125","metaDescription":"Siemens SENTRON 3VA1112-1AA36-0KH0 switch disconnector, 125 A rated continuous current, 3-pole, 690 V AC max, with shunt trip (STL) and auxiliary contacts. Available 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":"76.2 mm","Height":"130 mm","Limited To 1 S":"2 kA","Trip indicator":"Yes","Number of poles":"3","Product version":"in MCCB design","Voltage trigger":"Yes","lifecycle_stage":"current","Limited To 0.5 S":"2 kA","Product brand name":"SENTRON","Product designation":"Switch disconnector","Latching - endurance":"15 000","Undervoltage Release":"No","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":"125 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","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":"3","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=244829&mlfb=3VA1112-1AA36-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0KH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-1AA36-0KH0 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 — submit an RFQ for a firm price and lead time."},{"question":"What is 3VA1112-1AA36-0KH0's listed depth?","answer":"The listed depth is 70 mm."},{"question":"What is 3VA1112-1AA36-0KH0's listed width?","answer":"The listed width is 76.2 mm."},{"question":"What compliance documentation does Siemens provide for 3VA1112-1AA36-0KH0?","answer":"As a SENTRON product, this switch disconnector is designed to meet IEC/EN 60947-3 requirements for switch-disconnectors. Standard documentation includes a CE declaration of conformity and manufacturer's declaration for RoHS/REACH compliance — these are available on request with the order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0KH0","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/3VA1112-1AA36-0KH0 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}}