{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-6EF32-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-6EF32-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-6EF32-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-6EF32-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA1125-6EF32-0AB0, 3-pole, 25 A (40 °C), TM240 thermal-magnetic release, line protection, 220 kA IC at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA1125-6EF32-0AB0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a TM240 thermal-magnetic release and a continuous current of 25 A at 40 °C. It's built for the main feeder or a big branch in a distribution panel — the kind of spot where you need serious fault-clearing without taking up a lot of DIN rail real estate. At 70 mm deep, 76.2 mm wide, and 130 mm tall, it fits standard MCCB mounting footprints, so it'll swap into existing SENTRON or legacy 3VA cutouts without panel rework. The interrupting capacity is the headline here: 220 kA at 240 V, dropping to 154 kA at 415 V, 121 kA at 440 V, and still holding 17 kA all the way up to 690 V. For a 25 A frame, that's a lot of headroom; you're not pushing the limits even on a stiff industrial service. The TM240 release holds a flat 25 A from 40 °C up to 50 °C, then drops to 24 A at 55 °C and 60 °C, and 23 A at 65 °C and 70 °C. That's not a showstopper for most motor or feeder circuits, but it means you size the breaker for the actual ambient, not the catalog number. ## What's built in and what isn't The 3VA1125-6EF32-0AB0 comes with two auxiliary switches (HP design) pre-installed, which is handy for remote status indication or tripping a downstream contactor. It's a straight thermal-magnetic line-protection breaker — no frills, no electronics to fail. The supplied basic switch is 3VA11256EF320AA0, so if you need a replacement mechanism that's the core assembly. Power loss is 8.5 W maximum, which matters for heat buildup in a sealed enclosure. ## Environmental limits and storage That covers unheated warehouses and outdoor cabinets in most climates. The storage minimum is the real limit — if it's been sitting in a frozen truck, let it warm up before slamming a fault through it.","metaTitle":"Siemens 3VA1125-6EF32-0AB0 SENTRON MCCB, 25A, 3-Pole, 220 kA","metaDescription":"Siemens SENTRON 3VA1125-6EF32-0AB0 molded case circuit breaker, 25A continuous, 3-pole, TM240 release, 220 kA IC at 240V. Current lifecycle stage. Quoted to order. Request 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":"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":"3VA11256EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HP","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":"3VA9988-0AA11","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=379106&mlfb=3VA1125-6EF32-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-6EF32-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA1125-6EF32-0AB0 include an undervoltage release or ground-fault monitoring?","answer":"No, this MCCB comes without an undervoltage release and without ground-fault monitoring. It includes two pre-installed auxiliary switches (HP design)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-6EF32-0AB0","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/3VA1125-6EF32-0AB0 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}}