{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1340-6EF32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1340-6EF32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1340-6EF32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1340-6EF32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1340-6EF32-0DH0, molded case circuit breaker, line protection, 3-pole, 400 A at 40 °C, 220 kA at 240 V, undervoltage release, 2 aux switches + 1 trip alarm.","salesMarkdown":"The Siemens SENTRON 3VA1340-6EF32-0DH0 is a 3-pole molded case circuit breaker rated 400 A at 40 °C, designed for line protection in distribution panels where fault current potential is high. Its interrupting capacity of 220 kA at 240 V and 154 kA at 415 V means it can safely clear severe short-circuit faults without upstream damage — critical for high-capacity transformer secondaries or busway taps. At 690 V the rating drops to 17 kA, so verify the available fault current at the point of installation if using on a 690 V system. The breaker carries its full 400 A rating up to 50 °C ambient; above that it derates linearly to 376 A at 65 °C and 367 A at 70 °C. Panel builders should account for this when positioning the breaker near other heat sources. Maximum power loss is 94.6 W, which feeds into enclosure thermal calculations for ventilation or forced cooling. Operating temperature range is -25 °C to 70 °C; storage range extends from -40 °C to 80 °C. ## Integrated auxiliaries and releases The UVR ensures the breaker trips if control voltage drops, which is standard for safety circuits and emergency-stop chains.","metaTitle":"Siemens 3VA1340-6EF32-0DH0 SENTRON MCCB, 400 A, 3-Pole, 220","metaDescription":"Siemens SENTRON 3VA1340-6EF32-0DH0 molded case circuit breaker, 400 A at 40 °C, 3-pole, 220 kA at 240 V. Undervoltage release included. Current lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"220 kA","at 415 V":"154 kA","at 440 V":"154 kA","at 500 V":"121 kA","at 690 V":"17 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]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"94.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA13406EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"H","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=1342900&mlfb=3VA1340-6EF32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1340-6EF32-0DH0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB at different voltages?","answer":"220 kA at 240 V, 154 kA at 415 V and 440 V, 121 kA at 500 V, and 17 kA at 690 V."},{"question":"Does this breaker include an undervoltage release?","answer":"Yes, it includes an undervoltage release (UVR) plus two auxiliary switches and one trip alarm switch."},{"question":"Where can I buy the 3VA1340-6EF32-0DH0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1340-6EF32-0DH0","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/3VA1340-6EF32-0DH0 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}}