{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA36-0JH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA36-0JH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0JH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0JH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA36-0JH0, switch disconnector in MCCB design, 3-pole, In=125 A, with shunt trip (STL) 110-127 V DC/AC, 2 auxiliary switches HQ + 1 trip alarm switch HQ, front terminal connection.","salesMarkdown":"It provides no overcurrent or short-circuit protection — it is a pure isolating and switching device, sized for load-break duty on feeders or downstream of a protective device. The front-terminal clamp connection accepts up to 17 x 6.5 mm busbar or cable lugs, matching the standard panel layout for 3VA frame-160 breakers. ## Shunt trip and auxiliary contact fit That means it can be remotely tripped from a PLC or emergency-stop circuit without a separate undervoltage release — the STL fires on applied voltage, not on loss of power. The auxiliary contact set gives three CO contacts for status feedback to a control system or panel lamp. The same frame accepts a motor-drive option for remote motorized operation, though that is not included here. ## Physical integration The 76.2 mm width is three 25.4 mm module slots — standard for a 3-pole MCCB footprint on a DIN rail or panel-mount plate. Front terminal access keeps wiring accessible without removing the device. ## Electrical ratings in context Rated insulation voltage Ui is 800 V; maximum operational voltage is 690 V AC 50/60 Hz and 500 V DC. Short-time withstand current is 2 kA for 0.5 s and 1 s — this is the current the device can carry momentarily during a fault without welding contacts, not a breaking capacity. The switch disconnector is not designed to interrupt fault currents; it isolates the load after upstream protection has cleared the fault.","metaTitle":"Siemens 3VA1112-1AA36-0JH0 SENTRON Switch Disconnector, 125","metaDescription":"Siemens 3VA1112-1AA36-0JH0 SENTRON switch disconnector, 125 A rated continuous current, 3-pole, with shunt trip and auxiliary switches. Active lifecycle, sourced 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=270302&mlfb=3VA1112-1AA36-0JH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0JH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1112-1AA36-0JH0?","answer":"Pricing and availability are confirmed at quote time. Submit an RFQ through this listing; the part is sourced to order through independent distribution channels."},{"question":"Will 3VA1112-1AA36-0JH0 drop into a panel specified around 3VA1110-5EE32-0JA0 without rewiring?","answer":"Yes, the physical footprint is identical — both share 130 mm height, 76.2 mm width, and 70 mm depth (, vs). The front-terminal lug arrangement is the same, so no panel rework is needed. The key difference: the 3VA1112-1AA36-0JH0 is a switch disconnector (no overcurrent protection), while the 3VA1110-5EE32-0JA0 is a molded case circuit breaker with a TM220 thermal-magnetic trip unit. If the circuit requires protection, the breaker variant is the correct choice; if only isolation and switching are needed, this switch disconnector fits the same hole."},{"question":"What compliance documentation does this brand provide for 3VA1112-1AA36-0JH0?","answer":"The evidence does not list specific compliance certificates (UL, CSA, CE, RoHS, REACH) for this order code. Standard Siemens SENTRON documentation typically includes a declaration of conformity and a CE marking; verify the exact certificates with the supplier at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0JH0","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/3VA1112-1AA36-0JH0 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}}