{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5KP32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5KP32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5KP32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5KP32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-5KP32-0AA0, molded case circuit breaker, 3-pole, 400 A, ETU850 electronic trip unit, line protection, 187 kA at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA2440-5KP32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 400 A continuous current across its full operating temperature range of -25 °C to 70 °C, with no derating needed from 40 °C through 70 °C. It carries the ETU850 electronic trip unit for adjustable overload and short-circuit protection, including N-conductor protection configurable from OFF to 20%–160% of the phase rating. This MCCB delivers 187 kA interrupting capacity at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. The 9 kA at 690 V still clears most industrial motor-circuit faults. The ETU850 trip unit supports adjustable short-time delay for selective coordination downstream. Dimensions are 248 mm high, 138 mm wide, 110 mm deep — a standard 3-pole MCCB footprint for Siemens SENTRON 3VA2 frames. Power loss is 63.5 W maximum, so account for that heat in the enclosure thermal budget.","metaTitle":"Siemens 3VA2440-5KP32-0AA0 SENTRON MCCB, 400 A, 3-Pole, ETU8","metaDescription":"Siemens 3VA2440-5KP32-0AA0 SENTRON molded case circuit breaker, 400 A continuous, 3-pole, ETU850 electronic trip unit. Breaking capacity 187 kA at 240 V. Current production. Source","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","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","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"Yes","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":"Yes","rated insulation voltage Ui":"800 V","Courant permanent assigné Iu":"400 A","Ground-Fault Monitoring Version":"Without","Design Of The Overcurrent Release":"ETU850","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 160%","at AC / limited to 0.5 s / rated value":"5 kA","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"6 000 A","Adjustable response value current / li min.":"600 A","Neutral conductors / upgradeable/retrofittable":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Max. rated operational current of the frame size":"630 A","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1 mm"}},"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=181504&mlfb=3VA2440-5KP32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5KP32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2440-5KP32-0AA0 at 480 V?","answer":"The interrupting capacity is 121 kA at 415 V and 440 V, 75.6 kA at 500 V — at 480 V it falls between those points; the 440 V rating (121 kA) is the closest published figure."},{"question":"What trip unit does this MCCB use?","answer":"It uses the ETU850 electronic trip unit with adjustable overload, short-circuit, and N-conductor protection (OFF, 20%–160%)."},{"question":"Where can I buy 3VA2440-5KP32-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5KP32-0AA0","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/3VA2440-5KP32-0AA0 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}}