{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-6EF36-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-6EF36-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-6EF36-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-6EF36-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-6EF36-0CA0 molded case circuit breaker, IEC frame 160, 3-pole, 40 A, breaking capacity class H Icu=70 kA at 415 V, line protection with TM240 thermal-magnetic trip, undervoltage release 120-127 V AC, clamp connection.","salesMarkdown":"The 3VA1140-6EF36-0CA0: At 500 V the Icu drops to 17 kA, so verify the system voltage against the fault current before committing the BOM line. ## Thermal derating and temperature limits If the breaker sits next to a heat source or in a sealed cabinet, use the 70 °C figure (37 A) as the continuous current ceiling for the circuit. Account for it in the enclosure thermal calculation, especially if the panel is NEMA 12 or IP54 with limited convection. ## Physical fit and what the undervoltage release does It uses clamp (screw) connections for the line and load terminals, not lug or busbar stabs. The width is 3 inches exactly, which matters for DIN-rail or mounting-plate layouts where you're fitting multiple poles side by side. The UVR is wired separately from the main power path; it draws a small holding current when energized. The base switch part number is 3VA11406EF360AA0 — the -0CA0 suffix adds the undervoltage release and clamp terminals. If your BOM calls for the base breaker without the UVR, the base switch is the same frame and trip unit; the UVR is a factory-installed option, not a field-addable accessory on this order code.","metaTitle":"Siemens 3VA1140-6EF36-0CA0 SENTRON MCCB, 40 A, 70 kA @ 415 V","metaDescription":"Siemens SENTRON 3VA1140-6EF36-0CA0 molded case circuit breaker, 3-pole, 40 A, 70 kA breaking capacity at 415 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":"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":"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":"13.3 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11406EF360AA0","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":"H","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=286283&mlfb=3VA1140-6EF36-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-6EF36-0CA0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA1140-6EF36-0CA0 include ground-fault monitoring?","answer":"No, this variant is specified 'without' ground-fault monitoring. It's a line-protection breaker with thermal-magnetic trip only — no electronic GF or earth-leakage module built in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-6EF36-0CA0","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/3VA1140-6EF36-0CA0 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}}