{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-6EF32-0HA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-6EF32-0HA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-6EF32-0HA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-6EF32-0HA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, molded case circuit breaker, 3VA1140-6EF32-0HA0, 3-pole, 40 A at 40 °C, breaking capacity 220 kA at 240 V AC, line protection, TM240 release, shunt trip (STL).","salesMarkdown":"## What it is and what it does The Siemens 3VA1140-6EF32-0HA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection — meaning it sits at the feeder or subfeeder level to protect cables and busbars from overloads and short circuits, not a motor-protective device with thermal-bimetal curves tuned for starting inrush. Rated 40 A continuous at 40 °C ambient, it carries the same 40 A rating up through 50 °C, then derates to 39 A at 55 °C and 37 A at 70 °C — so in a warm panel you lose only 3 A at the top of the operating range. Breaking capacity is the headline here: 220 kA at 240 V AC, 154 kA at 415 V, 121 kA at 440 V, and still 17 kA at 690 V. That 220 kA figure at 240 V means it can interrupt a fault current of that magnitude without rupturing — essential for high-fault locations like a transformer secondary or a large distribution board. ## Shunt trip and release design This variant includes a shunt trip (STL) auxiliary release, allowing remote tripping via a control voltage — useful for emergency-stop circuits or remote load shedding. The overcurrent release is a TM240 thermal-magnetic unit, so it combines a thermal bimetal for overload protection with a magnetic coil for short-circuit response. Rated insulation voltage is 800 V, giving headroom for 690 V systems. Power loss at rated current is 10.8 W — a manageable figure for enclosure thermal calculations. The 3-pole design fits standard 3-phase distribution; no undervoltage release, no ground-fault monitoring, no communication function on this order code — it's a straightforward line-protection breaker with remote trip capability. ## Dimensions and panel fit At 130 mm height, 76.2 mm width, and 70 mm depth, it occupies a compact footprint for a 40 A MCCB with 220 kA interrupting rating. The 76.2 mm width is standard for a 3-pole SENTRON 3VA frame — it clips onto a DIN rail or mounts with screws, so it drops into existing SENTRON distribution panels without re-drilling. ## Lifecycle and sourcing reality Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time. For a BOM freeze or a line-down replacement, this is a standard-catalog part you can specify without worrying about a last-time-buy window.","metaTitle":"Siemens 3VA1140-6EF32-0HA0 SENTRON MCCB, 40A, 220kA at 240V","metaDescription":"Siemens 3VA1140-6EF32-0HA0 SENTRON molded case circuit breaker, 40A rated at 40°C, 3-pole, 220kA breaking capacity at 240V. Line protection with TM240 release and shunt trip. Avail","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":"220 kA","at 415 V":"154 kA","at 440 V":"121 kA","at 500 V":"17 kA","at 690 V":"17 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"39 A","at 60 °C":"39 A","at 65 °C":"38 A","at 70 °C":"37 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"10.8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11406EF320AA0","Design Of The Auxiliary Release":"shunt trip (STL)","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":"3VA9688-0BL30","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":"H","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=128766&mlfb=3VA1140-6EF32-0HA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-6EF32-0HA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 240 V?","answer":"220 kA at 240 V AC, which is the highest interrupting rating across its voltage range."},{"question":"What does the shunt trip (STL) release do on this breaker?","answer":"The shunt trip allows remote tripping by applying a control voltage — typically used in emergency-stop circuits or for remote load shedding."},{"question":"Where can I buy the 3VA1140-6EF32-0HA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-6EF32-0HA0","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/3VA1140-6EF32-0HA0 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}}