{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-5EF32-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-5EF32-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-5EF32-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-5EF32-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1110-5EF32-0BA0, molded case circuit breaker, 3-pole, 100 A (40 °C), TM240 thermal-magnetic release, 187 kA at 240 V, undervoltage release, line protection design.","salesMarkdown":"## MCCB with integrated undervoltage release — 100 A continuous, 187 kA interrupting at 240 V The Siemens SENTRON 3VA1110-5EF32-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated 100 A at 40 °C, with a TM240 thermal-magnetic trip unit designed for line protection. This MCCB integrates an undervoltage release (UVR) as a factory-installed auxiliary release, so it drops the load when supply voltage falls below the dropout threshold — a standard requirement for motor feeder circuits where an automatic restart after a brownout would be a safety or process hazard. The UVR is part of the base order code, not an add-on module. ## Thermal derating and ambient — what the 40 °C rating means for a hot panel At 55 °C it derates to 98 A, at 60 °C to 96 A, at 65 °C to 94 A, and at 70 °C to 91 A (–). For a panel near a furnace line or a confined enclosure with limited airflow, that derating curve is the number that decides whether the breaker holds the load without nuisance tripping. ## Interrupting capacity across voltages — selectivity headroom The 3VA1110-5EF32-0BA0 delivers 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V (–). At 690 V the 17 kA rating still covers most industrial motor-circuit fault levels.","metaTitle":"Siemens 3VA1110-5EF32-0BA0 SENTRON MCCB, 100 A, 187 kA at 24","metaDescription":"Siemens 3VA1110-5EF32-0BA0 SENTRON molded case circuit breaker, 3-pole, 100 A at 40 °C, 187 kA breaking capacity at 240 V, undervoltage release. Active lifecycle, 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":"100 A","at 45 °C":"100 A","at 50 °C":"100 A","at 55 °C":"98 A","at 60 °C":"96 A","at 65 °C":"94 A","at 70 °C":"91 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":"27.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11105EF320AA0","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":"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=295157&mlfb=3VA1110-5EF32-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1110-5EF32-0BA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for the 3VA1110-5EF32-0BA0?","answer":"The peer 3VA1110-5EF32-0LA0 shares the same frame, poles, and TM240 trip, but substitutes an undervoltage release for a shunt trip — the deciding factor is whether your circuit requires a UVR (drop on undervoltage) or a shunt trip (remote trip via a separate control signal). Physically both mount in the same panel footprint, but the auxiliary release function differs, so they are not drop-in replacements without a wiring change."},{"question":"Where can I buy the 3VA1110-5EF32-0BA0 and get current pricing?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for the 3VA1110-5EF32-0BA0; availability and current pricing are confirmed at quote time against the requested quantity and delivery window."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-5EF32-0BA0","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/3VA1110-5EF32-0BA0 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}}