{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2225-6KP42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2225-6KP42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2225-6KP42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2225-6KP42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, molded case circuit breaker, 4-pole, 250 A, ETU850 electronic trip unit, 242 kA interrupting at 240 V.","salesMarkdown":"## What this 250 A MCCB carries The Siemens 3VA2225-6KP42-0AA0 is a SENTRON 3VA2 molded case circuit breaker rated for 250 A continuous current at 40 °C, built on a 4-pole frame with an ETU850 electronic trip unit. The interrupting capacity at 240 V hits 242 kA; at 415 V and 440 V it holds at 187 kA, then drops to 121 kA at 500 V and 4.5 kA at 690 V. That's a lot of fault-clearing muscle for a 250 A frame — you're getting the high-interrupt version of the 3VA2 line, not the standard 50/65 kA variant. At 55 °C it derates to 238 A, at 60 °C to 225 A, at 65 °C to 213 A, and at 70 °C to 200 A. If you're stuffing this into a crowded enclosure with other heat sources, those are the numbers to size against — don't plan on 250 A above 50 °C without checking the ambient inside the panel. Dimensions are 181 mm tall, 140 mm wide, and 86 mm deep — a standard 4-pole MCCB footprint for a 250 A frame. ## What the ETU850 trip unit does The ETU850 is the top-tier electronic trip unit in the 3VA2 family. It provides adjustable L (long-time), S (short-time), I (instantaneous), and G (ground-fault) protection — the G function is configurable from 20% to 100% of the sensor rating, and you can also switch the neutral protection off entirely.","metaTitle":"Siemens 3VA2225-6KP42-0AA0 SENTRON MCCB, 250 A, 4-Pole, ETU8","metaDescription":"Siemens 3VA2225-6KP42-0AA0 SENTRON molded case circuit breaker, 250 A continuous, 4-pole, ETU850 electronic trip unit. 242 kA at 240 V. Active production, available to order. Reque","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","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 kA","at 690 V":"4.5 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","Trip Indicator":"No","Number Of Poles":"4","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":"48 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Courant permanent assigné Iu":"250 A","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU850","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 100%","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","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"25 x 8 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1 mm"}},"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=131235&mlfb=3VA2225-6KP42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2225-6KP42-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2225-6KP42-0AA0","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/3VA2225-6KP42-0AA0 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}}