{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2225-8KQ42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2225-8KQ42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2225-8KQ42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2225-8KQ42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series molded case circuit breaker, 3VA2225-8KQ42-0AA0, 250 A rated continuous current, 4-pole, line protection with ground-fault monitoring, interrupting capacity 440 kA at 240 V.","salesMarkdown":"## SENTRON 3VA2 — 250 A, 4-Pole MCCB for Line Protection It carries a full-scale value of 250 A with an initial setting of 50 A, covering feeder and main distribution applications in LV switchgear. Interrupting capacity is the headline here: 440 kA at 240 V AC, 330 kA at 415/440 V, 220 kA at 500 V, and 52.5 kA at 690 V. Thermal derating is published across the operating range: full 250 A up to 50 °C, then 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C. Ground-fault monitoring uses summation current formation on L + N conductors, so it detects residual fault current without a separate GFCI module. Communication function is onboard, enabling integration with higher-level monitoring systems for selective coordination and event logging. Maximum power loss is 48 W under rated load, which factors into enclosure thermal calculations — not a selection parameter but relevant for panel ventilation planning in sealed cabinets. Dimensions: 181 mm height × 140 mm width × 86 mm depth (7.13 × 5.51 × 3.39 in). ## Integration & Environment The 70 °C operating ceiling matches the derated current of 200 A at that limit — the breaker runs but needs the derating applied. No undervoltage release or voltage trip is fitted on this variant — the trip indicator is also absent. These are optional accessories in the 3VA2 family; if UVR or trip-flag indication is required for the application, the -8KQ42-0AA0 suffix doesn't include them.","metaTitle":"Siemens 3VA2225-8KQ42-0AA0 SENTRON MCCB, 250A, 4P, 440kA","metaDescription":"Siemens 3VA2225-8KQ42-0AA0 SENTRON molded case circuit breaker, 250 A continuous, 4-pole, 440 kA at 240 V. Line protection with ground-fault monitoring. Current lifecycle stage. So","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":"Yes","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":"ETU860","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=215901&mlfb=3VA2225-8KQ42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2225-8KQ42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the physical dimensions of 3VA2225-8KQ42-0AA0?","answer":"181 mm height × 140 mm width × 86 mm depth (7.13 × 5.51 × 3.39 inches)."},{"question":"Does 3VA2225-8KQ42-0AA0 have ground-fault protection?","answer":"Yes, it includes summation current formation ground-fault monitoring on L + N conductors, detecting residual fault current without a separate module."},{"question":"Will 3VA2225-8KQ42-0AA0 drop into a panel specified around 5SQ2670-2YA63?","answer":"Panel cutout and bus-bar spacing are compatible between the 3VA2 and the earlier 5SQ series for most retrofits. The 3VA2 adds onboard communication and summation ground-fault monitoring that the older variant lacks."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2225-8KQ42-0AA0","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/3VA2225-8KQ42-0AA0 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}}