{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5HN32-0KL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5HN32-0KL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5HN32-0KL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HN32-0KL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-5HN32-0KL0, molded case circuit breaker, 3-pole, 400 A, line protection, 121 kA at 415 V, with shunt trip and auxiliary switches.","salesMarkdown":"The Siemens SENTRON 3VA2440-5HN32-0KL0 is a 3-pole molded case circuit breaker (MCCB) rated for 400 A continuous at 40 °C through 70 °C, meaning no derating across the full operating temperature range — a rare flat curve that simplifies panel design. ## Breaking capacity across voltages — where it fits This MCCB delivers 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. The steep drop at 690 V means it is not intended for 690 V main feeders; at that voltage you are limited to 9 kA, which is fine for sub-distribution but not for high-fault service-entrance duty. The 121 kA at 415 V puts it in the high-interrupting range for a 400 A frame — suitable for switchboards and large panelboards where fault current is high. ## Panel fit and auxiliary configuration Footprint is 138 mm wide, 248 mm high, 110 mm deep — a standard 3-pole MCCB size that fits most DIN-rail or panel-mount enclosures without special adapters. The breaker ships with a shunt trip (STL) for remote tripping, plus 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (HQ configuration), giving you four discrete signal outputs for status monitoring.","metaTitle":"Siemens SENTRON 3VA2440-5HN32-0KL0 MCCB, 400 A, 3-Pole, 121","metaDescription":"Siemens SENTRON 3VA2440-5HN32-0KL0 molded case circuit breaker, 400 A, 3-pole, line protection. 121 kA breaking at 415 V. Current lifecycle. Available to order, confirm price and l","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":"Yes","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 + 1 trip alarm switch + 1 electrical alarm switch 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":"3VA9688-0BL33","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":"4","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB22","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=279443&mlfb=3VA2440-5HN32-0KL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HN32-0KL0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2440-5HN32-0KL0 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 your quantity and delivery window."},{"question":"What is the interrupting rating of 3VA2440-5HN32-0KL0 at 415 V?","answer":"At 415 V the interrupting rating is 121 kA, which covers high-fault industrial distribution panels."},{"question":"Does 3VA2440-5HN32-0KL0 include a shunt trip or undervoltage release?","answer":"It includes a shunt trip (STL) for remote tripping, but no undervoltage release."},{"question":"What auxiliary switches come with 3VA2440-5HN32-0KL0?","answer":"The breaker is configured with 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (HQ)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5HN32-0KL0","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/3VA2440-5HN32-0KL0 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}}