{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-7MS32-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-7MS32-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-7MS32-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7MS32-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-7MS32-0AB0, molded case circuit breaker, 3-pole, 400 A continuous, adjustable thermal-magnetic trip 1200-6000 A, 330 kA interrupting at 240 V AC.","salesMarkdown":"## 400 A MCCB with serious interrupting capacity The Siemens SENTRON 3VA2440-7MS32-0AB0 is a 3-pole molded case circuit breaker rated for 400 A continuous at 40 °C, with an adjustable thermal-magnetic trip unit covering 1200 A to 6000 A. This is a starter-protection design — the trip curve is shaped for motor inrush, so it holds on starting current but clears a locked-rotor fault fast. The interrupting rating hits 330 kA at 240 V AC, 242 kA at 415/440 V, and still manages 187 kA at 500 V. The adjustable trip band (1200-6000 A) lets you dial in the magnetic pickup to match the motor's locked-rotor current without swapping the breaker. At 415 V, the 242 kA rating is enough for most industrial service-entrance positions. The 2 HP auxiliary switches built into the frame give you status feedback for the PLC or alarm panel without adding external relays. Mounting is via the rear panel or DIN rail adapter (not included). The 3-pole design with no undervoltage release and no communication module keeps wiring simple: line in, load out, auxiliary contacts for status.","metaTitle":"Siemens 3VA2440-7MS32-0AB0 SENTRON MCCB, 400 A, 3-Pole, 330","metaDescription":"Siemens SENTRON 3VA2440-7MS32-0AB0 molded case circuit breaker, 400 A continuous, 3-pole, adjustable trip 1200-6000 A, 330 kA interrupting at 240 V. Current lifecycle. Sourced to o","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":"6 000 A","Minimum":"1 200 A","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 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":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Starter protection","Communication Function":"No","Phase Failure Detection":"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":"#BEZUG!","Design Of The Auxiliary Switch":"2 auxiliary switches HP","Design Of The Auxiliary Release":"Without auxiliary release","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU310M","protection class IP / on the front":"IP40","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":"I","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA11","Switching Capacity Class Of The Circuit Breaker":"C","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=913125&mlfb=3VA2440-7MS32-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7MS32-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2440-7MS32-0AB0?","answer":"We source this part to order against an RFQ through our independent distribution network. Availability and current pricing are confirmed at quote time."},{"question":"What is the interrupting capacity of this MCCB?","answer":"330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 9 kA at 690 V."},{"question":"What is the continuous current rating and trip range?","answer":"400 A continuous at 40-70 °C ambient, with an adjustable thermal-magnetic trip unit covering 1200 A to 6000 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-7MS32-0AB0","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/3VA2440-7MS32-0AB0 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}}