{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-4EF36-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-4EF36-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-4EF36-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF36-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-4EF36-0DH0, molded case circuit breaker, 3-pole, 125 A rated continuous current Iu, TM240 thermal-magnetic overcurrent release, line protection version, 70 mm depth.","salesMarkdown":"It carries a TM240 thermal-magnetic release — that's the fixed-trip version, not adjustable — so what you see on the nameplate is what you get for overload and short-circuit protection. The interrupting ratings are substantial: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V, which means it can handle serious fault currents on the secondary side of a transformer or a large motor branch circuit without upstream coordination headaches. At 76.2 mm wide, 130 mm tall, and 70 mm deep, this MCCB fits the standard SENTRON 3VA footprint — it'll drop into a panel that was laid out for a 3VA1 frame without rewiring the bus bars. Operating temperature spans -25 °C to 70 °C, with full 125 A current up to 50 °C; above that it derates to 112.5 A at 70 °C. That matters if this breaker lives near a hot transformer or in a non-climate-controlled enclosure out in the plant. ## Auxiliaries and releases That's handy for a PLC input that needs to distinguish a manual open from a trip. A trip indicator on the front tells you at a glance whether the breaker opened on overload or short circuit.","metaTitle":"Siemens 3VA1112-4EF36-0DH0 SENTRON MCCB, 125 A, 3-Pole, Line","metaDescription":"Siemens SENTRON 3VA1112-4EF36-0DH0 molded case circuit breaker, 125 A rated, 3-pole, TM240 release, 70 mm depth. Active 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","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 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":"120 A","at 60 °C":"117.5 A","at 65 °C":"115 A","at 70 °C":"112.5 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"125 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB25","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"125 A","Adjustable response value current / li max.":"1 250 A","Adjustable response value current / li min.":"625 A","Adjustable response value current / lr min.":"88 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"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=269816&mlfb=3VA1112-4EF36-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF36-0DH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1112-4EF36-0DH0?","answer":"This MCCB is sourced and quoted to order through independent distribution. Availability and current pricing are confirmed at quote time against an RFQ."},{"question":"What is the interrupting capacity of this breaker at 415 V?","answer":"The 3VA1112-4EF36-0DH0 is rated for 75.6 kA at 415 V, which covers most industrial secondary-side fault scenarios."},{"question":"Does this MCCB include an undervoltage release?","answer":"Yes, the 3VA1112-4EF36-0DH0 ships with an undervoltage release (UVR) integrated. It trips the breaker if control voltage drops below the dropout threshold."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-4EF36-0DH0","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/3VA1112-4EF36-0DH0 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}}