{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1340-5EF32-0AJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1340-5EF32-0AJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA1340-5EF32-0AJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1340-5EF32-0AJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1340-5EF32-0AJ0, 3-pole molded case circuit breaker, 400 A rated continuous current, TM240 thermal-magnetic overcurrent release, line protection version, 187 kA breaking capacity at 240 V.","salesMarkdown":"The 3VA1340-5EF32-0AJ0 is a 3-pole SENTRON molded case circuit breaker rated for 400 A continuous current (Iu) across ambient temperatures up to 50 °C before derating begins — at 55 °C it still carries 392 A, at 70 °C it holds 367 A (–). That thermal curve means this breaker fits a 400 A bus without oversizing for a warm enclosure, as long as the panel ambient stays under 50 °C. The TM240 overcurrent release is a thermal-magnetic unit tuned for line protection — it handles overloads and short-circuits in distribution, not motor-starting duty cycles. Breaking capacity is the headline number for a main breaker: 187 kA at 240 V, 121 kA at 415 V, and 11.9 kA at 690 V (–). At 415 V, that 121 kA SCCR gives headroom above typical utility fault currents in most industrial panels — you can place this upstream without worrying about series-rating limits on downstream breakers. For a main breaker feeding a PLC cabinet, that trip alarm can drive a hardwired shutdown signal without a separate monitoring relay.","metaTitle":"Siemens 3VA1340-5EF32-0AJ0 SENTRON MCCB, 400 A, 3-Pole","metaDescription":"Siemens SENTRON 3VA1340-5EF32-0AJ0 molded case circuit breaker, 400 A continuous, 3-pole, TM240 release, 187 kA at 240 V. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Height":"210 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 690 V":"11.9 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"392 A","at 60 °C":"384 A","at 65 °C":"376 A","at 70 °C":"367 A","Depth [in]":"4.3 in","Width [in]":"5.4 in","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":"10 000","Undervoltage Release":"No","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HP","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"400 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","Design of the N-conductor protection":"Without","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.":"400 A","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"2 000 A","Adjustable response value current / lr min.":"280 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":"3VA9988-0AB11","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"400 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.":"35 x 10","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f59d8c360c846d5ff9ef773daebb7908.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1338304&mlfb=3VA1340-5EF32-0AJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1340-5EF32-0AJ0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1340-5EF32-0AJ0 and how do I get a price?","answer":"This breaker is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is 3VA1340-5EF32-0AJ0's breaking capacity at 240 V?","answer":"187 kA at 240 V, with 121 kA at 415 V and 11.9 kA at 690 V (–)."},{"question":"What compliance documentation does this breaker carry?","answer":"As a SENTRON molded case circuit breaker, it carries the standard Siemens compliance documentation for industrial control gear — RoHS, REACH, and applicable UL/IEC certifications are part of the product documentation package available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1340-5EF32-0AJ0","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/3VA1340-5EF32-0AJ0 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}}