{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3EF36-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3EF36-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3EF36-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF36-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-3EF36-0DH0, molded case circuit breaker, 3-pole, 125 A, 75.6 kA at 240 V, line protection, with undervoltage release and auxiliary switches.","salesMarkdown":"It carries a continuous rating of 125 A at 40 °C, meaning it handles that load continuously without tripping — the rating that governs the main feeder or large branch circuit it protects. Rated interrupting capacity hits 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — figures that tell you it can clear a bolted fault at those levels without welding contacts or rupturing the case. This is a 3-pole unit, so it switches all three phases simultaneously. The design is line protection — no ground-fault monitoring or communication module built in, just a straight thermal-magnetic trip for overcurrent and short-circuit events. The trip indicator gives visual confirmation of a fault trip versus a manual off, which speeds troubleshooting on a down line.","metaTitle":"Siemens 3VA1112-3EF36-0DH0 SENTRON MCCB, 125 A, 3-Pole","metaDescription":"Siemens 3VA1112-3EF36-0DH0 SENTRON molded case circuit breaker. 125 A continuous, 75.6 kA at 240 V. 3-pole line protection with undervoltage release. Active production, available t","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","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 kA","at 40 °C":"125 A","at 45 °C":"125 A","at 50 °C":"125 A","at 55 °C":"122 A","at 60 °C":"120 A","at 65 °C":"117 A","at 70 °C":"114 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"30.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11123EF360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM240","Design Of Short-Circuit Protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","protection class IP / on the front":"IP40","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"N","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","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=99963&mlfb=3VA1112-3EF36-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF36-0DH0/alternatives.json"},"ai":{"faq":[{"question":"Does this breaker include auxiliary switches or an undervoltage release?","answer":"Yes, it comes with 2 auxiliary switches plus 1 trip alarm switch (HQ), and an integrated undervoltage release (UVR). The UVR trips the breaker on loss of control voltage, common in safety circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3EF36-0DH0","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/3VA1112-3EF36-0DH0 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}}