{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF36-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF36-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3EF36-0HH0, molded case circuit breaker, 3-pole, 40 A rated at 40 °C, 75.6 kA breaking capacity at 240 V AC, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA1140-3EF36-0HH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 40 A across the 40 °C to 50 °C band and derating to 37 A at 70 °C. Its interrupting capacity hits 75.6 kA at 240 V AC, 52.5 kA at 415 V, and 11.9 kA at 690 V — figures that govern selectivity coordination in a distribution panel. The 32 kA at 440 V and 11.9 kA at 690 V track the expected voltage-derate curve; selectivity tables from the SENTRON manual should be consulted for coordination with upstream 3VA breakers or SIRIUS fuses. The auxiliary contacts report breaker position to the control system. Rated 40 A from 40 °C through 50 °C ambient; drops to 39 A at 55–60 °C and 38 A at 65 °C, then 37 A at 70 °C (–). Maximum power loss is 10.8 W — relevant for enclosure heat rise calculations when grouping multiple breakers. This is an active Siemens SENTRON 3VA catalog line — no phase-out notice on record.","metaTitle":"Siemens 3VA1140-3EF36-0HH0 SENTRON MCCB, 40 A, 3-Pole, 75.6","metaDescription":"Siemens 3VA1140-3EF36-0HH0 SENTRON molded case circuit breaker, 40 A rated, 3-pole, 75.6 kA breaking at 240 V. Active production. Sourced to order against RFQ.","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":"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":"Yes","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":"3VA11403EF360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"N","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=27103&mlfb=3VA1140-3EF36-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0HH0/alternatives.json"},"ai":{"faq":[{"question":"What auxiliary switches and releases come fitted on this MCCB?","answer":"It ships with 2 auxiliary switches plus 1 trip alarm switch (HQ) and a shunt trip release (STL). No undervoltage release or ground-fault monitoring is included on this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0HH0","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/3VA1140-3EF36-0HH0 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}}