{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-5EF36-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-5EF36-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-5EF36-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-5EF36-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-5EF36-0AC0, molded case circuit breaker, 3-pole, rated current 25 A, TM240 overcurrent release, interrupting capacity 187 kA at 240 V AC, 121 kA at 415 V AC, 75.6 kA at 440 V AC, 17 kA at 500 V and 690 V AC.","salesMarkdown":"It is a 3-pole device rated for an insulation voltage of 800 V and carries a maximum power loss of 8.5 W. ## Interrupting capacity — the real-world fault rating This MCCB provides interrupting capacities of 187 kA at 240 V AC, 121 kA at 415 V AC, 75.6 kA at 440 V AC, and 17 kA at both 500 V and 690 V AC. ## Thermal derating — continuous current across temperature Rated 25 A continuously at ambient temperatures up to 50 °C, the breaker derates to 24 A at 55–60 °C, and further to 23 A at 65–70 °C. ## Physical fit and auxiliary configuration The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint for panel mounting. It ships with two built-in auxiliary switches (HQ design) and the basic switch variant is 3VA11255EF360AA0.","metaTitle":"Siemens 3VA1125-5EF36-0AC0 SENTRON MCCB, 3P, 25A, TM240, 187","metaDescription":"Siemens SENTRON 3VA1125-5EF36-0AC0 molded case circuit breaker, 3-pole, 25A rated current, TM240 release, interrupting capacity 187kA at 240V AC. Active production, available to or","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 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]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","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","Of The Supplied Basic Switch":"3VA11255EF360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Ground-Fault Monitoring Version":"Without","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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","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=533126&mlfb=3VA1125-5EF36-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-5EF36-0AC0/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3VA1125-5EF36-0AC0 and how is it quoted for volume purchases?","answer":"This part is sourced through independent distribution channels and quoted to order against an RFQ. Submit a request for volume pricing and availability confirmation."},{"question":"Will 3VA1125-5EF36-0AC0 drop into a panel specified around 3VA1110-5ED36-0AC0 without rewiring?","answer":"Both breakers share the same SENTRON 3VA platform and 3-pole footprint, so the 3VA1125-5EF36-0AC0 will physically mount in the same panel cutout and bus connection. However, the 3VA1125 carries a higher 25 A rating and a TM240 release versus the lower-rated sibling — verify that the branch circuit and upstream protection are sized for the increased continuous current before swapping."},{"question":"What compliance documentation does this brand provide for 3VA1125-5EF36-0AC0?","answer":"Siemens SENTRON MCCBs typically carry IEC 60947-2 and UL 489 certifications, along with RoHS and REACH declarations. Specific documentation for this order code is available upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-5EF36-0AC0","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/3VA1125-5EF36-0AC0 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}}