{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1040-3ED32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1040-3ED32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1040-3ED32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1040-3ED32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1040-3ED32-0DC0, 3-pole molded case circuit breaker, 40 A rated continuous current (Iu), TM210 thermal-magnetic release, 75.6 kA interrupting at 240 V, 70 mm depth.","salesMarkdown":"That TM210 designation means the thermal fixed at 40 A and the magnetic pickup is adjustable — you set the instantaneous trip threshold to match your load's inrush, not the other way around. Interrupting capacity hits 75.6 kA at 240 V and 52.5 kA at 415 V, so it clears high fault currents without cascading upstream on a 400 V distribution board. That UVR means the breaker drops out if control voltage falls below the dropout threshold — standard for emergency-stop chains or mains-loss protection on a machine feeder. The 2 HQ aux switches give you one N/O and one N/C contact for the PLC input and the panel lamp, no extra wiring for a third. ## Derating and ambient — the numbers that matter for a closed panel Above that it starts to taper: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. The breaker itself is rated for operation down to -25 °C and stores down to -40 °C, so cold-start in an unheated plant room is fine. Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — standard 3-pole MCCB footprint for a 40 A frame. Mount it inside a panel with a gasketed door if the environment is wet.","metaTitle":"Siemens 3VA1040-3ED32-0DC0 SENTRON MCCB, 40 A, 3-Pole, TM210","metaDescription":"Siemens 3VA1040-3ED32-0DC0 SENTRON molded case circuit breaker, 40 A rated, 3-pole, TM210 release, 75.6 kA at 240 V. Undervoltage release and 2 HQ aux switches included. Available","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":"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":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB25","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":"3VA9988-0AA12","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":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=303583&mlfb=3VA1040-3ED32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1040-3ED32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"What interrupting capacity does this breaker have at 415 V?","answer":"52.5 kA at 415 V. At 240 V it's 75.6 kA, at 440 V it's 32 kA, and at 690 V it's 7.5 kA. The 415 V figure covers the common European 400 V three-phase distribution voltage with margin."},{"question":"Does the 3VA1040-3ED32-0DC0 include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) fitted as standard, designated as the auxiliary release design. It also includes two HQ auxiliary switches for remote status indication."},{"question":"Where can I buy the 3VA1040-3ED32-0DC0 and what is the lead time?","answer":"This breaker is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — lead time and stock position are confirmed at quote time, not listed here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1040-3ED32-0DC0","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/3VA1040-3ED32-0DC0 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}}