{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1340-5EF32-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1340-5EF32-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1340-5EF32-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1340-5EF32-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1340-5EF32-0HC0, molded case circuit breaker, 3-pole, 400 A, 187 kA at 240 V, line protection, with shunt trip and 2 auxiliary switches.","salesMarkdown":"The Siemens SENTRON 3VA1340-5EF32-0HC0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection at 400 A continuous current, with no derating needed up to 50 °C ambient — at 55 °C it still holds 392 A, and at 70 °C it carries 367 A, so it handles warm enclosures without forced cooling. Its interrupting capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 11.9 kA at 690 V — these are the fault currents it can safely clear at each voltage level, which determines whether it coordinates with upstream gear or requires a current-limiting fuse ahead of it. ## Built-in accessories and what they do It does not include an undervoltage release, ground-fault monitoring, or communication function — if those are needed, this is not the right order code. Dimensions are 248 mm high, 138 mm wide, and 110 mm deep — standard SENTRON 3VA1 footprint for 400 A frame, so it drops into existing 3VA panel cutouts and bus-bar arrangements without modification. Maximum power dissipation at rated current is 92.1 W — account for that heat in the enclosure thermal budget.","metaTitle":"Siemens 3VA1340-5EF32-0HC0 SENTRON MCCB, 400 A, 3-Pole, 187","metaDescription":"Siemens SENTRON 3VA1340-5EF32-0HC0 molded case circuit breaker, 400 A rated, 3-pole, 187 kA breaking capacity at 240 VAC. Active production. Quoted 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":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 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]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"92.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA13405EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"shunt trip (STL)","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":"3VA9688-0BL30","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"M","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=1382487&mlfb=3VA1340-5EF32-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1340-5EF32-0HC0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA1340-5EF32-0HC0 include a shunt trip?","answer":"Yes, it ships with a factory-installed shunt trip (STL) and two auxiliary switches (HQ)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1340-5EF32-0HC0","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/3VA1340-5EF32-0HC0 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}}