{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1225-3EE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1225-3EE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1225-3EE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1225-3EE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VM1225-3EE42-0AA0, 4-pole, Line protection, 250 A rated continuous current Iu, TM220 overcurrent release, 76 kA at 240 V AC.","salesMarkdown":"## SENTRON 3VM1225-3EE42-0AA0 — 250 A MCCB, 4-Pole, TM220 Release It carries 250 A continuous current (Iu) across ambient temperatures from 40 °C to 50 °C, derating to 223 A at 70 °C. This suits applications where coordination studies set fixed pickup values and you don't want field-adjustable settings drifting. ## Interrupting Capacity Across Voltages Rated short-circuit breaking capacity (Icu) varies with system voltage: 76 kA at 240 V AC, 53 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500 V AC. The TM220 release is not voltage-sensitive — the same trip unit works across the voltage range. Front face protection is IP40 — suitable for enclosed distribution boards where tools or fingers might contact the front but not for washdown environments. No ground-fault monitoring module, no motor drive, and no N-conductor protection built in; these are external add-ons if required. Maximum power loss is 57 W at rated current — account for this in thermal calculations inside a sealed enclosure, especially when grouping multiple breakers.","metaTitle":"Siemens 3VM1225-3EE42-0AA0 SENTRON MCCB, 250 A, 4-Pole, 76 k","metaDescription":"Siemens 3VM1225-3EE42-0AA0 SENTRON molded case circuit breaker, 250 A rated, 4-pole, TM220 thermal-magnetic release. Interrupting capacity 76 kA at 240 V AC. Active production. Quo","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"140 mm","Height":"158 mm","at 240 V":"76 kA","at 415 V":"53 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 40 °C":"250 A","at 45 °C":"250 A","at 50 °C":"250 A","at 55 °C":"243.3 A","at 60 °C":"236.5 A","at 65 °C":"229.8 A","at 70 °C":"223 A","Depth [in]":"70 in","Width [in]":"140 in","Height [in]":"158 in","Number of poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"12 000","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"57 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"250 A","Rated insulation voltage Ui":"690 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM220","Protection class IP / on the front":"IP40","Design of the N-conductor protection":"Without","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Product extension / optional / motor drive":"No","Adjustable response value current / Ir max.":"250 A","Adjustable response value current / li max.":"2 500 A","Adjustable response value current / li min.":"2 500 A","Adjustable response value current / lr min.":"175 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"N","Max. rated operational current of the frame size":"250 A","Max. rated operational voltage Ue with AC 50/60Hz":"500 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front connection","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"25 x 8","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bfaa85f9e5b8d6ecb41e182dfa2de460.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=627682&mlfb=3VM1225-3EE42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VM1225-3EE42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Does the 3VM1225-3EE42-0AA0 include ground fault or neutral protection?","answer":"No. This breaker ships without ground-fault monitoring, without N-conductor protection, and without a motor drive. These are separate option modules if your application requires them."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1225-3EE42-0AA0","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/3VM1225-3EE42-0AA0 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}}