{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-5EF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-5EF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-5EF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5EF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-5EF42-0AA0, molded case circuit breaker, 4-pole, 250 A continuous, TM240 thermal-magnetic release, line protection design, 70 x 140 x 158 mm.","salesMarkdown":"## Siemens 3VA1225-5EF42-0AA0 — 250 A SENTRON MCCB, 4-Pole, TM240 Release Breaking capacity is specified per voltage: 187 kA at 240 V AC, 121 kA at 415 V AC, 75.6 kA at 440 V AC, 30 kA at 500 V AC, and 17 kA at 690 V AC. Continuous current rating holds at 250 A from 40 °C through 50 °C ambient, then derates linearly to 223 A at 70 °C. The TM240 release is fixed-trip, not adjustable; the breaker's minimum breaking capacity is 1 250 A. Dimensions are 70 mm depth, 140 mm width, 158 mm height. Maximum power loss is 57 W. ## Installation and Panel Fit No undervoltage release, voltage trigger, or communication function is integrated — this is a standalone line-protection breaker. Ground-fault monitoring is not included.","metaTitle":"Siemens 3VA1225-5EF42-0AA0 SENTRON MCCB, 250 A, 4-Pole, 187","metaDescription":"Siemens 3VA1225-5EF42-0AA0 SENTRON molded case circuit breaker, 250 A continuous, 4-pole, TM240 release. Breaking capacity 187 kA at 240 V AC. Current production. Quoted to order.","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","Height":"158 mm","Maximum":"2 500 A","Minimum":"1 250 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"30 kA","at 690 V":"17 kA","at 40 °C":"250 A","at 45 °C":"250 A","at 50 °C":"250 A","at 55 °C":"243 A","at 60 °C":"237 A","at 65 °C":"230 A","at 70 °C":"223 A","Depth [In]":"2.76 in","Width [In]":"5.51 in","Height [In]":"6.22 in","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","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","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"250 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM240","Design Of Short-Circuit Protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","protection class IP / on the front":"IP40","design of the N-conductor protection":"without","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 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":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=2131&mlfb=3VA1225-5EF42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5EF42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-5EF42-0AA0 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings for 3VA1225-5EF42-0AA0?","answer":"Continuous current 250 A at 40 °C, 4-pole, TM240 thermal-magnetic release, breaking capacity 187 kA at 240 V AC, dimensions 70 x 140 x 158 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-5EF42-0AA0","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/3VA1225-5EF42-0AA0 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}}