{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1225-5ED42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1225-5ED42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1225-5ED42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1225-5ED42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1225-5ED42-0AA0, molded case circuit breaker, 4-pole, 250 A rated continuous current Iu, TM210 overcurrent release, breaking capacity 187 kA at 240 V.","salesMarkdown":"The 3VM1225-5ED42-0AA0 is a SENTRON molded case circuit breaker rated for 250 A continuous current (Iu) with a TM210 thermal-magnetic release — the '210' designates the release family, not the amp setting, and Ir is adjustable up to 250 A. That 250 A is the frame size; the breaker carries the full 250 A up to 50 °C ambient, then derates to 223 A at 70 °C, so in a hot panel you lose about 11 % of headroom. At 240 V it interrupts 187 kA; at 415 V it's still 121 kA; at 500 V it drops to 30 kA. For a 480 V distribution panel (common in North America) the 76 kA at 440 V is the closest published figure — that's well above typical 25–65 kA available fault currents, so you've got headroom for most commercial and light industrial services. Dimensions are 140 mm wide, 158 mm tall, 70 mm deep — that's a 5.5 x 6.2 x 2.8 inch footprint. ## Coordination and selectivity note That means selectivity with downstream breakers is limited to the natural magnetic trip band. For a main breaker feeding sub-feeders, you'd typically step up to the 3VA series with an electronic ETU if you need full zone-selective interlocking. The 3VM is sized for line protection (as the product version states), not as a main with complex coordination requirements.","metaTitle":"Siemens SENTRON 3VM1225-5ED42-0AA0 MCCB, 250 A, 4-Pole, 187","metaDescription":"Siemens SENTRON 3VM1225-5ED42-0AA0 molded case circuit breaker, 250 A continuous, 4-pole, TM210 release. Breaking capacity 187 kA at 240 V. Current production. Sourced to order aga","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"140 mm","title":"3VM1225-5ED42-0AA0","Height":"158 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"76 kA","at 500 V":"30 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]":"2.8 in","Width [in]":"5.5 in","Height [in]":"6.2 in","description":"circuit breaker 3VM1 IEC frame 250 breaking capacity class M Icu=55kA @ 415V 4-pole, line protection TM210, FTFM, In=250A overload protection Ir=250A, not adjustable short-circuit protection Ii=10 x In N conductor unprotected nut keeper kit","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":"TM210","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.":"250 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":"M","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,"stockQuantity":0,"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=580519&mlfb=3VM1225-5ED42-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VM1225-5ED42-0AA0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is 3VM1225-5ED42-0AA0's listed depth?","answer":"The depth is 70 mm (2.8 inches)."},{"question":"What is 3VM1225-5ED42-0AA0's listed width?","answer":"The width is 140 mm (5.5 inches)."},{"question":"Will 3VM1225-5ED42-0AA0 drop into a panel specified around 3VA1112-5EF32-0CA0?","answer":"No — the 3VM1225 and 3VA1112 are different frame sizes and release families. The 3VA series uses an electronic trip unit (ETU) with adjustable curves and zone-selective interlocking, while the 3VM uses a fixed TM210 thermal-magnetic release. The mounting footprint and terminal spacing also differ; a panel designed for one will require rework for the other."},{"question":"What compliance documentation does this brand provide for 3VM1225-5ED42-0AA0?","answer":"Siemens SENTRON breakers are typically supplied with CE, UL, CSA, and IEC 60947-2 certifications. RoHS and REACH declarations are available from the manufacturer's documentation portal. The specific approvals for this order code should be confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1225-5ED42-0AA0","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/3VM1225-5ED42-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}