{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-3EF32-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-3EF32-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-3EF32-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3EF32-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-3EF32-0HH0, molded case circuit breaker, 3-pole, 25 A at 40 °C, line protection, 70 mm depth, 75.6 kA at 240 V interrupting capacity.","salesMarkdown":"It carries a continuous current rating of 25 A at 40 °C, with a slight derating curve: still 25 A at 50 °C, 24 A at 60 °C, and 23 A at 70 °C. The 3-pole construction handles three-phase circuits up to 800 V rated insulation voltage. Interrupting capacity is what decides whether this breaker survives a fault without welding its contacts. At 240 V it breaks 75.6 kA; at 415 V it breaks 52.5 kA; at 440 V it drops to 32 kA; at 500 V and 690 V it holds at 11.9 kA. That spread means the same breaker can serve a 480 V panel with moderate fault current or a 240 V service with very high available fault current — useful when standardizing one part number across multiple voltage levels. The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a compact 3-pole MCCB footprint that fits standard distribution panelboards. ## Auxiliary and trip features The supplied basic switch variant is 3VA11253EF320AA0 — the core switching mechanism inside the molded case. That internal part number matters if you are cross-referencing a replacement for the internal assembly, though in practice the complete breaker is the ordered unit.","metaTitle":"Siemens 3VA1125-3EF32-0HH0 SENTRON MCCB, 25 A, 3-Pole, Line","metaDescription":"Siemens 3VA1125-3EF32-0HH0 SENTRON molded case circuit breaker, 3-pole, 25 A at 40 °C, 70 mm depth. Interrupting capacity 75.6 kA at 240 V. Active production. Quoted to order again","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":"Yes","Number Of Poles":"3","Voltage Trigger":"Yes","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":"3VA11253EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"shunt trip (STL)","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":"3VA9688-0BL30","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=173787&mlfb=3VA1125-3EF32-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3EF32-0HH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1125-3EF32-0HH0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is 3VA1125-3EF32-0HH0's listed depth?","answer":"The depth is 70 mm (2.76 in). That is the dimension from the mounting surface to the front of the breaker — the critical clearance for panel door fit."},{"question":"What is 3VA1125-3EF32-0HH0's listed width?","answer":"The width is 76.2 mm (3 in). That is the space it occupies on the DIN rail or panel-mount footprint."},{"question":"Will 3VA1125-3EF32-0HH0 drop into a panel specified around 3VA1110-5ED36-0AC0 without rewiring?","answer":"The physical dimensions and 3-pole footprint match the 3VA platform, so the breaker fits the same panel cutout and bus connection. However, the interrupting capacity and current rating differ — verify the 25 A rating and the interrupting capacity at your system voltage against the original specification before substitution."},{"question":"What compliance documentation does this brand provide for 3VA1125-3EF32-0HH0?","answer":"Siemens SENTRON MCCBs are designed to meet IEC 60947-2 and UL 489 standards. The product is RoHS and REACH compliant. Specific declaration files are available from Siemens documentation resources."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-3EF32-0HH0","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/3VA1125-3EF32-0HH0 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}}