{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA36-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA36-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA36-0BH0, IEC frame 160 switch disconnector, 3-pole, 125 A, without overload or short-circuit protection, clamp connection, undervoltage release 24 V DC, 2 auxiliary switches HQ + 1 trip alarm switch HQ.","salesMarkdown":"The Siemens 3VA1112-1AA36-0BH0 is a SENTRON IEC frame 160 switch disconnector — a 3-pole, 125 A rated continuous current device designed for isolation and switching of loads under load, but without integral overload or short-circuit protection. It's built for applications where the upstream protection is handled separately and the requirement is a reliable, lockable disconnect point with auxiliary status feedback. Rated for 690 V AC and 500 V DC, with a 125 A continuous rating (Iu). The 125 A continuous rating sets the maximum uninterrupted current. It holds in when energized and releases when power is removed. The switch is rated for 2 kA limited to 1 second and 2 kA limited to 0.5 seconds — this is the short-time withstand current, not a breaking capacity. It means the switch can pass a fault current of 2 kA for up to 1 second without damage, which is typical for a disconnect that relies on an upstream breaker for fault interruption. In a panel with a 50 kA SCCR upstream, this switch is fine as long as the upstream device clears the fault within its rated time. The 3VA1112-1AA36-0BH0 is a front-terminal device with clamp connections for the main circuit — no lug kit required, just strip and clamp. The 70 mm depth, 76.2 mm width, and 130 mm height fit the standard 3VA IEC frame 160 footprint, which is common across the SENTRON 3VA family. The optional motor drive (product extension) allows remote motorized operation — useful for applications where the disconnect must be opened from a DCS or SCADA without an operator pulling the handle. The auxiliary contacts are wired via the front terminal block, accessible with the switch in place.","metaTitle":"Siemens 3VA1112-1AA36-0BH0 SENTRON Switch Disconnector, 125","metaDescription":"Siemens SENTRON 3VA1112-1AA36-0BH0 switch disconnector, 125 A rated continuous current, 3-pole, with undervoltage release 24 V DC. Current production. Quoted 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":"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":"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":"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=98073&mlfb=3VA1112-1AA36-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0BH0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1112-1AA36-0BH0 fit in a panel designed for 3VA1112-5EF32-0CA0?","answer":"Yes, the physical dimensions are identical — 70 mm depth, 76.2 mm width, 130 mm height — and both use the same IEC frame 160 footprint and front terminal arrangement. The mounting hole pattern and busbar spacing are the same. However, the electrical function differs: the -0BH0 is a switch disconnector without protection, while the -5EF32 is a molded case circuit breaker with overcurrent release. If the panel was wired for the breaker's protection function, replacing it with the disconnect means the branch circuit loses its overload and short-circuit protection — that protection must be provide"}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0BH0","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/3VA1112-1AA36-0BH0 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}}