{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-6EF32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-6EF32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-6EF32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-6EF32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-6EF32-0DH0, molded case circuit breaker, 3-pole, 25 A rated at 40 °C, 220 kA breaking capacity at 240 V, line protection design, with undervoltage release and 2 auxiliary + 1 trip alarm switches.","salesMarkdown":"That 25 A holds steady through 50 °C — only dropping to 24 A at 55 °C and 23 A at 70 °C — so in a warm panel you still get full rated current without derating the branch. The breaking capacity is 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V, dropping to 17 kA at 500 V and 690 V. For a 480 V distribution board, the 121 kA at 440 V figure is the one that governs SCCR compliance; at 690 V the 17 kA still handles most industrial fault levels. ## Auxiliary and release configuration — what ships inside The UVR means the breaker trips on loss of control voltage — a common requirement for safety circuits and emergency-stop chains where you want the load disconnected if the control supply drops. No ground-fault monitoring module is included; this is a straight line-protection breaker, not a GFCI variant. The breaker measures 70 mm deep, 76.2 mm wide, and 130 mm tall — a standard SENTRON 3VA1 footprint that drops into existing DIN-rail or screw-mount panels without re-drilling. The 76.2 mm width (3 inches) is the same as the 3VA1110 frame, so if you are swapping a lower-current unit for this 25 A version, the busbar and mounting holes align.","metaTitle":"Siemens 3VA1125-6EF32-0DH0 SENTRON MCCB, 25 A, 3-Pole, 220 k","metaDescription":"Siemens 3VA1125-6EF32-0DH0 SENTRON molded case circuit breaker, 25 A rated, 3-pole, 220 kA breaking capacity at 240 V. Current production. Sourced 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":"Yes","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 + 1 trip alarm switch 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":"3VA9608-0BB25","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":"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=115444&mlfb=3VA1125-6EF32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-6EF32-0DH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1125-6EF32-0DH0?","answer":"Submit an RFQ through this listing. The part is sourced to order through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"Will 3VA1125-6EF32-0DH0 drop into a panel specified around 3VA1110-5EF32-0AM0 without rewiring?","answer":"Yes — both share the same 76.2 mm width and 130 mm height, so the mounting footprint and busbar spacing are identical. The 25 A rating is higher than the 3VA1110's typical 10–16 A range, so verify the branch circuit can accept the higher continuous current."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"Standard SENTRON documentation includes IEC 60947-2 certification, CE marking, and UL/CSA listings for the 3VA series. RoHS and REACH declarations are available through Siemens Industry Online Support."},{"question":"What is the breaking capacity at 480 V?","answer":"The closest listed value is 121 kA at 440 V. For 480 V applications, the 121 kA at 440 V figure is the governing SCCR rating; the breaker also carries 17 kA at 500 V and 690 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-6EF32-0DH0","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/3VA1125-6EF32-0DH0 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}}