{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-5ED42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-5ED42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-5ED42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-5ED42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-5ED42-0AA0, molded case circuit breaker, 4-pole, 25 A, TM210 release, line protection, interrupting 187 kA at 240 V, 121 kA at 415 V.","salesMarkdown":"The Siemens SENTRON 3VA1125-5ED42-0AA0 is a 4-pole molded case circuit breaker rated 25 A at 40 °C, with a TM210 thermal-magnetic release tuned for line protection — no undervoltage release, no ground-fault monitoring, no communication module. That 187 kA interrupting rating at 240 V (121 kA at 415 V) means it can clear a high-fault bolted short without upstream coordination headaches; the 70 mm depth and 101.6 mm width keep it in a standard panel footprint. At 240 V the breaker holds 187 kA SCCR — that is the full rated short-circuit capacity, not a conditional rating. At 415 V it still delivers 121 kA, dropping to 75.6 kA at 440 V and 17 kA at 500 V or 690 V. The TM210 release is fixed thermal-magnetic; no trip indicator, no voltage-trigger accessory. Current derating starts above 55 °C: 24 A at 55 °C, 23 A at 70 °C. Insulation voltage is rated 800 V, so the breaker is comfortable on 480/277 V or 400/230 V systems with headroom.","metaTitle":"Siemens 3VA1125-5ED42-0AA0 SENTRON MCCB, 4-pole, 25 A, 187 k","metaDescription":"Siemens 3VA1125-5ED42-0AA0 SENTRON molded case circuit breaker, 4-pole, 25 A rated, 187 kA interrupting at 240 VAC. TM210 release, line protection. Current lifecycle. Sourced to or","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 kA","at 40 °C":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"24 A","at 60 °C":"24 A","at 65 °C":"23 A","at 70 °C":"23 A","Depth [In]":"2.76 in","Width [In]":"4 in","Height [In]":"5.12 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":"8.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM210","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","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":"https://cdn.aoctrl.com/e29f484b9cbacd853b2cb82e418c1541.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=273830&mlfb=3VA1125-5ED42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-5ED42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 3VA1125-5ED42-0AA0?","answer":"It is a 4-pole MCCB rated 25 A at 40 °C, with a TM210 thermal-magnetic release, interrupting 187 kA at 240 V and 121 kA at 415 V. Dimensions are 70 mm deep, 101.6 mm wide, 130 mm high."},{"question":"Where can I buy the 3VA1125-5ED42-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-5ED42-0AA0","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/3VA1125-5ED42-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}