{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3EF32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3EF32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3EF32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-3EF32-0CA0, molded case circuit breaker, 3-pole, 125 A (40 °C), TM240 overcurrent release, undervoltage release, 70 mm depth, 76.2 mm width.","salesMarkdown":"It carries a continuous current rating of 125 A at 40 °C, with a TM240 thermal-magnetic overcurrent release — the '240' indicates the fixed thermal trip threshold in amperes, so this unit is sized for 125 A continuous but the release element is calibrated for a 240 A frame. Rated insulation voltage is 800 V, and the breaking capacity varies by system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. ## Thermal derating and operating envelope Above that, the continuous current must be derated: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. Maximum power loss is 30.6 W — a relevant figure for enclosure thermal calculations, especially in sealed or high-fill-factor panels where heat buildup accelerates derating. No communication function or ground-fault monitoring is built in; this is a standalone thermal-magnetic breaker with undervoltage release only.","metaTitle":"Siemens 3VA1112-3EF32-0CA0 SENTRON MCCB, 125 A, 3-Pole, 70 m","metaDescription":"Siemens SENTRON 3VA1112-3EF32-0CA0 molded case circuit breaker, 125 A at 40 °C, 3-pole, 75.6 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":"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":"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":"3VA11123EF320AA0","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":"3VA9608-0BB24","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":"N","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","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=85468&mlfb=3VA1112-3EF32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation is available for 3VA1112-3EF32-0CA0?","answer":"As a standard Siemens SENTRON MCCB, this part carries the usual CE, UL, and CSA certifications for the 3VA series. RoHS and REACH declarations are available from Siemens documentation. Specific certification numbers should be verified against the unit's rating plate at receipt."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3EF32-0CA0","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/3VA1112-3EF32-0CA0 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}}