{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1040-3ED36-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1040-3ED36-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA1040-3ED36-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1040-3ED36-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1040-3ED36-0AF0, molded case circuit breaker, 3-pole, 40 A rated continuous current, TM210 thermal-magnetic release, line protection, 75.6 kA interrupting at 240 V.","salesMarkdown":"## Integrator note — 40 A MCCB with TM210 release The Siemens SENTRON 3VA1040-3ED36-0AF0 is a 3-pole molded case circuit breaker rated for 40 A continuous current (Iu) at up to 50 °C ambient, with a TM210 thermal-magnetic release. The interrupting ratings step down from 75.6 kA at 240 V to 52.5 kA at 415 V and 32 kA at 440 V — enough headroom for most distribution panels fed by a typical 500 kVA transformer. Above that it derates linearly: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. In a sealed, uncooled panel that sees 60 °C internal ambient, plan for a 37.6 A continuous load ceiling. The breaker occupies 76.2 mm width (3-pole fixed), 130 mm height, and 70 mm depth — standard SENTRON 3VA footprint for a 40 A frame. The auxiliary contact configuration is 1 N/O + 1 N/C switch plus a separate trip alarm contact (HQ type), wired via the front accessory slot. ## Coordination and selectivity notes The TM210 release has a fixed long-time delay (tr) of 1 second at 6× In per the IEC 60947-2 thermal curve. This gives a defined coordination band with downstream miniature circuit breakers: a 40 A MCCB feeding a 16 A MCB on a lighting panel will hold through a bolted fault at the sub-panel terminals up to roughly 10 kA, depending on cable impedance. The 15000-cycle latching endurance covers the mechanical life; electrical endurance is lower under full-load switching but adequate for a distribution breaker that operates a few times a year. No phase-failure detection or ground-fault monitoring is built in — those require the 3VA accessory modules (undervoltage release, shunt trip, or RCD block) ordered separately.","metaTitle":"Siemens 3VA1040-3ED36-0AF0 SENTRON MCCB, 40 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1040-3ED36-0AF0 molded case circuit breaker, 40 A rated, 3-pole, TM210 release, 75.6 kA at 240 V. Current 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","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 690 V":"7.5 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":"Yes","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":"1 auxiliary switch + 1 trip alarm switch 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":"TM210","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":"No","Adjustable response value current / Ir max.":"40 A","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"400 A","Adjustable response value current / lr min.":"40 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"N","Max. rated operational current of the frame size":"100 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=176438&mlfb=3VA1040-3ED36-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1040-3ED36-0AF0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1040-3ED36-0AF0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the interrupting rating of 3VA1040-3ED36-0AF0 at 415 V?","answer":"52.5 kA at 415 V. At 240 V it clears 75.6 kA, at 440 V it clears 32 kA, and at 690 V it clears 7.5 kA."},{"question":"What is the width of 3VA1040-3ED36-0AF0?","answer":"76.2 mm. The depth is 70 mm and the height is 130 mm."},{"question":"Will 3VA1040-3ED36-0AF0 drop into a panel specified for 3VA1010-2ED32-0JA0?","answer":"No. The 3VA1040 is a physically larger frame (76.2 mm wide) compared to the 3VA1010 (55 mm wide), so it will not fit the same DIN-rail footprint without re-drilling the mounting plate."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"The part carries the Siemens SENTRON brand and is designed to IEC 60947-2. Specific RoHS, REACH, and UL documentation is available from Siemens upon request through the RFQ process."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1040-3ED36-0AF0","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/3VA1040-3ED36-0AF0 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}}