{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-6EF32-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-6EF32-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-6EF32-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-6EF32-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-6EF32-0BC0, molded case circuit breaker, 3-pole, 25 A rated current, 220 kA breaking capacity at 240 V AC, line protection design with undervoltage release and 2 auxiliary switches.","salesMarkdown":"## Siemens SENTRON 3VA1125-6EF32-0BC0 — 25 A MCCB with 220 kA Interrupting Rating The Siemens SENTRON 3VA1125-6EF32-0BC0 is a 3-pole molded case circuit breaker (MCCB) rated 25 A at 40 °C, designed for line protection in distribution panels. Its interrupting capacity reaches 220 kA at 240 V AC, 154 kA at 415 V AC, and 121 kA at 440 V AC — figures that govern fault-clearing capability in high-fault-current installations. At 500 V and 690 V the rating drops to 17 kA, so verify the available fault current at the point of installation before specifying. The 220 kA interrupting rating at 240 V places this MCCB in the high-fault tier for 240 V distribution — suitable for service-entrance or main-breaker duty where transformer fault currents are high. At 415 V the 154 kA rating still exceeds typical industrial panel SCCR requirements (often 65 kA or 100 kA), providing headroom for selectivity with downstream breakers. The 17 kA rating at 690 V is the limiting case; if the installation is at 690 V, confirm the available fault current is below that threshold. The 25 A rating holds from 40 °C through 50 °C. At 55 °C and 60 °C it derates to 24 A; at 65 °C and 70 °C it drops to 23 A. Operating ambient range is -25 °C to 70 °C, storage range -40 °C to 80 °C. For panels with elevated internal temperatures — common in enclosed switchgear or near heat sources — use the 55 °C column for continuous load sizing. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth. The 76.2 mm width (3 inches) matches the standard 3-pole MCCB footprint for DIN-rail or panel-mount installation. Depth of 70 mm (2.76 in) leaves clearance for rear-connected busbars or cable lugs in a typical 200 mm deep enclosure.","metaTitle":"Siemens 3VA1125-6EF32-0BC0 SENTRON MCCB, 25A, 220kA at 240V","metaDescription":"Siemens SENTRON 3VA1125-6EF32-0BC0 molded case circuit breaker, 3-pole, 25A rated at 40°C, 220kA breaking capacity at 240V AC. Active production. Quoted to order against RFQ.","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":"220 kA","at 415 V":"154 kA","at 440 V":"121 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":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"11 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11256EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB11","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":"H","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=134166&mlfb=3VA1125-6EF32-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-6EF32-0BC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1125-6EF32-0BC0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"What are the key ratings of 3VA1125-6EF32-0BC0?","answer":"It is a 3-pole MCCB rated 25 A at 40 °C with interrupting capacities of 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 500 V and 690 V. It includes an undervoltage release and two auxiliary switches."},{"question":"What is 3VA1125-6EF32-0BC0's listed depth?","answer":"The depth is 70 mm (2.76 inches)."},{"question":"What is 3VA1125-6EF32-0BC0's listed width?","answer":"The width is 76.2 mm (3 inches)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-6EF32-0BC0","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/3VA1125-6EF32-0BC0 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}}