{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-3EF32-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-3EF32-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-3EF32-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3EF32-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-3EF32-0CC0, molded case circuit breaker, 3-pole, 25 A at 40 °C, line protection, with undervoltage release.","salesMarkdown":"The Siemens SENTRON 3VA1125-3EF32-0CC0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 25 A continuously at 40 °C and derating to 23 A at 70 °C. Its interrupting capacity hits 75.6 kA at 240 V and still holds 11.9 kA at 690 V — enough headroom for most industrial distribution panels without cascading upstream. At 415 V it interrupts 52.5 kA, at 440 V it's 32 kA, and at 500 V it drops to 11.9 kA — the same figure holds at 690 V. That curve tells you where this breaker sits in a selective coordination study: it clears high-fault scenarios at the lower voltages common in North American 480Y/277 V panels, but at 690 V you're coordination-limited to about 12 kA available fault current. ## Built-in undervoltage release The auxiliary switch configuration is 2 auxiliary switches HQ, so you get status feedback without adding a separate accessory module. The 3VA1125-3EF32-0CC0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling.","metaTitle":"Siemens 3VA1125-3EF32-0CC0 SENTRON MCCB, 25A, 3-Pole, 75.6kA","metaDescription":"Siemens SENTRON 3VA1125-3EF32-0CC0 molded case circuit breaker, 25A rated at 40°C, 3-pole, 75.6kA interrupting at 240V. Active production. Quoted to order.","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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 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":"3VA11253EF320AA0","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":"3VA9608-0BB24","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":"N","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=383201&mlfb=3VA1125-3EF32-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3EF32-0CC0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this breaker at 240 V?","answer":"At 240 V the interrupting capacity is 75.6 kA. At 415 V it's 52.5 kA, at 440 V it's 32 kA, and at 500 V and 690 V it's 11.9 kA."},{"question":"Does this MCCB include an undervoltage release?","answer":"Yes, this variant is fitted with an undervoltage release (UVR) as the auxiliary release, plus 2 auxiliary switches HQ for status feedback."},{"question":"Where can I buy the 3VA1125-3EF32-0CC0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock or price figures are published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-3EF32-0CC0","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/3VA1125-3EF32-0CC0 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}}