{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF36-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF36-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5EF36-0BA0, molded case circuit breaker, 3-pole, 125 A at 40 °C, TM240 overcurrent release, undervoltage release, 187 kA interrupting capacity at 240 V.","salesMarkdown":"## MCCB for line protection with UVR Its TM240 thermal-magnetic overcurrent release handles moderate overloads and short circuits, while the built-in undervoltage release (UVR) drops the breaker if supply voltage falls below the dropout threshold — a common requirement for safety circuits and motor feeder disconnects. The interrupting capacity is the standout: 187 kA at 240 V AC, 121 kA at 415 V, and still 17 kA at 690 V. That puts this breaker in the high-fault tier — suitable for main feeders or sub-distribution near large transformers where available fault current is severe. In a crowded panel with poor airflow, factor in the 30.6 W max power loss when sizing cabinet cooling. Dimensions are 130 mm height × 76.2 mm width × 70 mm depth — a standard 3-pole MCCB footprint that fits most Siemens SENTRON panelboards and third-party enclosures with matching busbar centers. The 70 mm depth leaves clearance for wiring gutters and gland plates.","metaTitle":"Siemens 3VA1112-5EF36-0BA0 MCCB, 125A, 3-Pole, 187kA at 240V","metaDescription":"Siemens SENTRON 3VA1112-5EF36-0BA0 molded case circuit breaker, 125A, 3-pole, line protection, undervoltage release, 187 kA at 240 V. 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","Maximum":"0 A","Minimum":"0 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 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":"No","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":"3VA11125EF360AA0","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":"3VA9608-0BB11","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":"0","Switching Capacity Class Of The Circuit Breaker":"M","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=265807&mlfb=3VA1112-5EF36-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0BA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1112-5EF36-0BA0 drop into a panel specified for 3VA1112-5EE32-0AA0 without rewiring?","answer":"Yes — both share the same 130 mm height, 76.2 mm width, and 70 mm depth, so the mechanical fit is identical. The busbar and lug positions are the same; no wiring changes needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0BA0","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/3VA1112-5EF36-0BA0 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}}