{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5HN32-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5HN32-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5HN32-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HN32-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-5HN32-0HC0, molded case circuit breaker, 400 A, 3-pole, 187 kA at 240 V, 110 mm depth, 138 mm width, 248 mm height.","salesMarkdown":"## What this 400 A MCCB carries The Siemens SENTRON 3VA2440-5HN32-0HC0 is a 3-pole molded case circuit breaker rated for 400 A continuous at 40 °C through 70 °C — no derating needed across that band, which simplifies panel sizing in warm cabinets. Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 9 kA at 690 V, so it handles high-fault service-entrance or distribution positions without cascading upstream. The 110 mm depth and 138 mm width fit standard MCCB mounting footprints; the 248 mm height leaves room for the integrated shunt trip (STL) and two HQ auxiliary switches. ## Selectivity and coordination headroom Rated 4 800 A minimum and maximum — that's the fixed short-time pickup, not a range. For a 400 A frame, that gives you a solid 12x overload band before the breaker starts its intentional delay, which helps with motor inrush or transformer magnetizing currents. The shunt trip (STL) and two HQ auxiliary switches are factory-installed — no field retrofit of the trip unit. Designed for line protection (not motor protection), so it's a distribution breaker, not a motor circuit protector.","metaTitle":"Siemens 3VA2440-5HN32-0HC0 SENTRON MCCB, 400 A, 3-Pole, 187","metaDescription":"Siemens SENTRON 3VA2440-5HN32-0HC0 molded case circuit breaker, 400 A continuous, 3-pole, 187 kA at 240 V. Current lifecycle. Sourced to order against RFQ.","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":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 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":"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":"63.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2440-5HN32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"shunt trip (STL)","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":"3VA9688-0BL30","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":"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":"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=251348&mlfb=3VA2440-5HN32-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HN32-0HC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2440-5HN32-0HC0?","answer":"Sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here."},{"question":"What is the interrupting capacity of this MCCB at 240 V?","answer":"187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 9 kA at 690 V."},{"question":"Does this breaker include a shunt trip and auxiliary switches?","answer":"Yes, it comes with a shunt trip (STL) and two HQ auxiliary switches factory-installed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5HN32-0HC0","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/3VA2440-5HN32-0HC0 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}}