{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-5EF36-0AD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-5EF36-0AD0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-5EF36-0AD0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EF36-0AD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-5EF36-0AD0, molded case circuit breaker, 3-pole, 40 A rated continuous current Iu, TM240 thermal-magnetic overcurrent release, interrupting capacity 187 kA at 240 V AC.","salesMarkdown":"The 3VA1140-5EF36-0AD0 is a Siemens SENTRON molded case circuit breaker (MCCB) rated for 40 A continuous current at 40 °C, with no derating needed up to 50 °C — at 55 °C it still holds 38.4 A, and at 70 °C it's 36 A. That means for a 40 A feeder in a warm panel, you stay in spec without oversizing. The TM240 thermal-magnetic release is fixed-trip, not adjustable, so what you see on the nameplate is the protection curve you get — no field tweaking. Interrupting capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. At 415 V, 121 kA still covers most industrial transformer secondaries. This MCCB measures 70 mm deep, 76.2 mm wide, and 130 mm tall — a compact footprint that fits standard panel-mount cutouts for the 3VA frame size. It ships with 3 auxiliary switches HQ — these are the form-C type for remote status indication back to a PLC or alarm panel.","metaTitle":"Siemens 3VA1140-5EF36-0AD0 MCCB, 40 A, 3-pole, 187 kA at 240","metaDescription":"Siemens SENTRON 3VA1140-5EF36-0AD0 molded case circuit breaker, 40 A rated, 3-pole, TM240 thermal-magnetic release. Interrupting capacity 187 kA at 240 V. Current production. Quote","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","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 690 V":"17 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"38.4 A","at 60 °C":"37.6 A","at 65 °C":"36.8 A","at 70 °C":"36 A","Trip indicator":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"3 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"without auxiliaryrelease","Ground fault monitoring version":"Without","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"40 A","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"200 A","Adjustable response value current / lr min.":"28 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"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=298512&mlfb=3VA1140-5EF36-0AD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EF36-0AD0/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"As a current-production Siemens SENTRON part, standard documentation includes RoHS and REACH declarations, plus IEC/UL certifications per the 3VA series. Specific certificate numbers should be confirmed from the official datasheet or your Siemens contact."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-5EF36-0AD0","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/3VA1140-5EF36-0AD0 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}}