{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1580-5EF32-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1580-5EF32-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1580-5EF32-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1580-5EF32-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1580-5EF32-0BA0, molded case circuit breaker (MCCB), 3-pole, 800 A at 40 °C, TM240 overcurrent release, undervoltage release, line protection design.","salesMarkdown":"## What this MCCB is rated for Its continuous current rating holds 800 A up to 50 °C ambient, then derates to 780 A at 55 °C, 761 A at 60 °C, 741 A at 65 °C, and 722 A at 70 °C — so if your panel runs hot, the actual trip threshold drops, and you need to account for that in your load calcs, not just the nameplate 800 A. Interrupting capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 52.5 kA at 690 V — that 187 kA at 240 V covers high-fault industrial services (like a transformer secondary) where fault current can exceed 100 kA, so this breaker won't vent or weld closed on a bolted fault. Dimensions are 320 mm high, 210 mm wide, 120 mm deep — that 120 mm depth is the key number for enclosure depth clearance; it's a standard MCCB footprint, not a compact frame, so it needs a full-depth back panel or a deep gland plate. Maximum power loss is 242.5 W — that's the heat it dumps into the enclosure at full rated current. In a sealed panel, that heat needs to be vented or the internal ambient will rise above the 50 °C derating knee. If you're stacking multiple breakers, sum their losses and check the enclosure's thermal dissipation rating.","metaTitle":"Siemens 3VA1580-5EF32-0BA0 SENTRON MCCB, 800 A, 3-Pole, Line","metaDescription":"Siemens 3VA1580-5EF32-0BA0 SENTRON molded case circuit breaker, 800 A at 40 °C, 187 kA at 240 V, 3-pole, TM240 release, undervoltage release. Current lifecycle. Sourced to order ag","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"120 mm","Width":"210 mm","title":"3VA1580-5EF32-0BA0","Height":"320 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":"52.5 kA","at 40 °C":"800 A","at 45 °C":"800 A","at 50 °C":"800 A","at 55 °C":"780 A","at 60 °C":"761 A","at 65 °C":"741 A","at 70 °C":"722 A","Depth [In]":"4.72 in","Width [In]":"8.27 in","Height [In]":"12.6 in","description":"circuit breaker 3VA1 IEC frame 1000 breaking capacity class M Icu=55kA @ 415V 3-pole, line protection TM240, ATAM, In=800A overload protection Ir=560A...800A short-circuit protection Ii=5 x In nut keeper kit undervoltage release (UVR) 24V DC","Trip Indicator":"No","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":"242.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA15805EF320AA0","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":"3VA9608-0BB11","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"750 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"10 000","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0ce7977805b8280afb8701b472881340.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=645560&mlfb=3VA1580-5EF32-0BA0"},"ai":{"faq":[{"question":"What does the TM240 overcurrent release mean?","answer":"TM240 is a thermal-magnetic release fixed at 240 A trip threshold — not field-adjustable, so the breaker's long-time and short-time pickup is set at the factory."},{"question":"Does 3VA1580-5EF32-0BA0 include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) built in, so loss of control voltage opens the breaker — common on safety circuits or E-stop chains."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1580-5EF32-0BA0","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/3VA1580-5EF32-0BA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}