{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1040-4ED32-0AD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1040-4ED32-0AD0","canonicalUrl":"https://aoctrl.com/siemens/3VA1040-4ED32-0AD0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1040-4ED32-0AD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1040-4ED32-0AD0, molded case circuit breaker, 3-pole, 40 A rated continuous current, TM210 thermal-magnetic release, 121 kA at 240 V, 3 auxiliary switches HQ, IP40 front.","salesMarkdown":"## Siemens 3VA1040-4ED32-0AD0 — 40 A SENTRON MCCB with TM210 Release The Siemens 3VA1040-4ED32-0AD0 is a 3-pole SENTRON molded case circuit breaker rated for 40 A continuous current at 40 °C, using a TM210 thermal-magnetic overcurrent release. It carries a 121 kA interrupting capacity at 240 V and 75.6 kA at 415 V, which means it can safely clear high-fault currents in distribution panels without upstream coordination issues. Above 55 °C it drops to 38.4 A, and at 70 °C it reaches 36 A. The 121 kA at 240 V is the short-circuit current rating (SCCR) at that voltage; at 415 V it's 75.6 kA, and at 690 V it's 11.9 kA. These figures govern where the breaker can be installed in the fault-current hierarchy of the distribution board. It provides line protection (cable and busbar) rather than motor or generator protection. The 3-pole design covers three-phase circuits; the neutral is not switched through this unit.","metaTitle":"Siemens 3VA1040-4ED32-0AD0 SENTRON MCCB, 40 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1040-4ED32-0AD0 molded case circuit breaker, 40 A rated, 3-pole, 121 kA at 240 V. TM210 release, 3 aux switches. Current lifecycle stage. Sourced 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","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 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":"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":"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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"S","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=400242&mlfb=3VA1040-4ED32-0AD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1040-4ED32-0AD0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1040-4ED32-0AD0 and get a price?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is the depth of 3VA1040-4ED32-0AD0?","answer":"The depth is 70 mm."},{"question":"What is the width of 3VA1040-4ED32-0AD0?","answer":"The width is 76.2 mm."},{"question":"Will 3VA1040-4ED32-0AD0 drop into a panel specified for 3VA1010-2ED32-0JA0?","answer":"Both are 3-pole SENTRON MCCBs with the same 76.2 mm width and 70 mm depth, so the physical footprint is identical. The key difference is the current rating: the 3VA1040-4ED32-0AD0 is rated 40 A continuous, while the 3VA1010-2ED32-0JA0 is a lower-rated variant. Verify the load current and the TM release settings before substituting — the wiring and busbar must support 40 A."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"The SENTRON series carries IEC 60947-2 certification as a molded case circuit breaker. RoHS and REACH declarations are standard from Siemens for this product line. Specific UL listing information should be confirmed against the nameplate marking on the unit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1040-4ED32-0AD0","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/3VA1040-4ED32-0AD0 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}}