{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2225-8JQ42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2225-8JQ42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2225-8JQ42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2225-8JQ42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2225-8JQ42-0AA0, molded case circuit breaker, 4-pole, 250 A continuous, line protection design, 440 kA breaking capacity at 240 V, ground-fault monitoring.","salesMarkdown":"It breaks up to 440 kA at 240 V and still holds 330 kA at 415 V and 440 V — that's serious fault-clearing headroom for a 250 A frame. The thermal derating curve starts at 55 °C (238 A) and drops to 200 A at 70 °C, so if this lands in a hot enclosure, you're not getting the full 250 A out of it without some ventilation planning. Ground-fault monitoring uses summation current formation on L+N conductors — it watches the vector sum, not a separate sensor. That means it catches leakage without needing an external GFCI module, but it also means the neutral must pass through the breaker. No undervoltage release, no voltage trip, no trip indicator on this variant. The 3VA2225-8JQ42-0AA0 measures 140 mm wide, 86 mm deep, 181 mm tall — a standard SENTRON 3VA frame size for this current class. The 4-pole width means it occupies the same footprint as a 4-module MCCB in a Siemens distribution board; verify the backpanel cutout against the 140 mm width before slotting it into an existing layout. Drop to 690 V and the breaking capacity falls to 52.5 kA, which is still high for a 250 A frame but tells you the arc extinction is voltage-sensitive. For selectivity studies, the 330 kA at 415 V is the number most European panel builders will use; the 220 kA at 500 V covers 480 V North American systems with headroom. ## Communication function onboard This variant includes a communication function — the 3VA platform supports PROFIBUS, PROFINET, or Modbus via plug-in modules, though the exact protocol depends on the communication module ordered alongside the breaker. The base breaker ships with the communication-ready interface; the module is a separate order code. If you need remote trip indication, energy metering, or parameterization over a network, this is the right base variant to start from.","metaTitle":"Siemens 3VA2225-8JQ42-0AA0 SENTRON MCCB, 250 A, 4-Pole, 440","metaDescription":"Siemens SENTRON 3VA2225-8JQ42-0AA0 molded case circuit breaker, 250 A continuous, 4-pole, 440 kA breaking at 240 V. Line protection with ground-fault monitoring. Current production","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"140 mm","Height":"181 mm","Maximum":"2 500 A","Minimum":"375 A","at 240 V":"440 kA","at 415 V":"330 kA","at 440 V":"330 kA","at 500 V":"220 kA","at 690 V":"52.5 kA","at 40 °C":"250 A","at 45 °C":"250 A","at 50 °C":"250 A","at 55 °C":"238 A","at 60 °C":"225 A","at 65 °C":"213 A","at 70 °C":"200 A","Depth [In]":"3.39 in","Width [In]":"5.51 in","Height [In]":"7.13 in","Initial Value":"50 A","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"250 A","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"48 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Summation current formation L + N conductor","Continuous Current / Rated Value":"250 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU560","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 100%","Product Function / Grounding Protection":"Yes","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"250 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"L","Mechanical Service Life (Operating Cycles) / Typical":"25 000","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/6a7c0d29262bf1366bc093fc9653b1e6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=304543&mlfb=3VA2225-8JQ42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2225-8JQ42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this MCCB?","answer":"Continuous current 250 A, 4-pole, breaking capacity 440 kA at 240 V and 330 kA at 415 V. Thermal derating starts at 55 °C. Ground-fault monitoring via summation current."},{"question":"Where can I buy the 3VA2225-8JQ42-0AA0 and how is it quoted?","answer":"We source this breaker to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for your volume and delivery requirements."},{"question":"Does this breaker include ground-fault protection?","answer":"Yes — it has ground-fault monitoring using summation current formation on the L+N conductors. It detects leakage current without an external GFCI module."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2225-8JQ42-0AA0","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/3VA2225-8JQ42-0AA0 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}}