{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-6HN32-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-6HN32-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-6HN32-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HN32-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-6HN32-0BH0, molded case circuit breaker, 3-pole, 400 A rated current, 242 kA breaking capacity at 240 V AC, line protection design, undervoltage release.","salesMarkdown":"## What this MCCB carries on the nameplate The Siemens SENTRON 3VA2440-6HN32-0BH0 is a 3-pole molded case circuit breaker rated for 400 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed in a warm panel. Breaking capacity hits 242 kA at 240 V AC, drops to 187 kA at 415 V and 440 V, then 121 kA at 500 V, and 9 kA at 690 V. The 138 mm width for a 3-pole frame is typical for this class; check your existing busbar or lug kit spacing. No communication module onboard (no Modbus, no PROFIBUS), so trip status comes through the auxiliary switch wiring only. The undervoltage release (UVR) will trip the breaker if control voltage drops — plan the control power supply accordingly. At 415 V it's still 187 kA — that's enough for most industrial distribution boards downstream of a transformer. The 400 A continuous rating is flat across the 40-70 °C range, which is unusual — most MCCBs derate above 40 °C. That means you can load it to 400 A even in a hot enclosure without recalculating.","metaTitle":"Siemens 3VA2440-6HN32-0BH0 SENTRON MCCB, 400 A, 3-Pole, 242","metaDescription":"Siemens SENTRON 3VA2440-6HN32-0BH0 molded case circuit breaker, 400 A rated, 3-pole, 242 kA breaking at 240 V. Current production. Available 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":"4 800 A","Minimum":"4 800 A","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 kA","at 690 V":"9 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"400 A","at 60 °C":"400 A","at 65 °C":"400 A","at 70 °C":"400 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Limited To 1 S":"5 kA","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":"66 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2440-6HN32-0AA0","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","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU350","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","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"630 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","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":"on both sides nut keeper kit","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/0eb36652ce522f093395d6bd0dd27e34.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=378329&mlfb=3VA2440-6HN32-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HN32-0BH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2440-6HN32-0BH0 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for the latest lead time."},{"question":"What is the breaking capacity of 3VA2440-6HN32-0BH0 at 240 V?","answer":"242 kA at 240 V AC, which is the highest interrupting rating on this frame. At 415 V it's 187 kA, at 500 V it's 121 kA, and at 690 V it drops to 9 kA."},{"question":"Does 3VA2440-6HN32-0BH0 include an undervoltage release?","answer":"Yes, the auxiliary release is an undervoltage release (UVR). The breaker also comes with 2 auxiliary switches plus 1 trip alarm switch for status indication."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-6HN32-0BH0","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/3VA2440-6HN32-0BH0 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}}