{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1025-4ED32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1025-4ED32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1025-4ED32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1025-4ED32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1025-4ED32-0CA0, 3-pole molded case circuit breaker, 25 A rated continuous current, 121 kA interrupting at 240 V, TM210 thermal-magnetic release, undervoltage release included.","salesMarkdown":"The Siemens SENTRON 3VA1025-4ED32-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated for 25 A continuous current at 40 °C, with a TM210 thermal-magnetic release that handles overloads and short circuits without external power. Its interrupting ratings are 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — so it clears high-fault conditions across common low-voltage distribution voltages without cascading upstream. Above that, it derates: 24 A at 55 °C, 23.5 A at 60 °C, 23 A at 65 °C, and 22.5 A at 70 °C. ## Built-in undervoltage release — what that means for your circuit That means if supply voltage drops below the release threshold, the breaker trips automatically. Good for motor branch circuits where you want a guaranteed drop-out on brownout, or for safety disconnects that must open on loss of control power. There's no auxiliary contact, no communication module, no phase-failure detection built in — it's a straightforward line-protection breaker with UVR. ## Panel fit and mounting notes","metaTitle":"Siemens 3VA1025-4ED32-0CA0 MCCB, 25 A, 3-pole, 121 kA at 240","metaDescription":"Siemens SENTRON 3VA1025-4ED32-0CA0 molded case circuit breaker, 25 A, 3-pole, 121 kA interrupting at 240 V. Active production. Quoted on request.","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","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 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":"23.5 A","at 65 °C":"23 A","at 70 °C":"22.5 A","Trip indicator":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"Without","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"25 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB24","Design of the overcurrent release":"TM210","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"No","Adjustable response value current / Ir max.":"25 A","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"320 A","Adjustable response value current / lr min.":"25 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"100 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=380744&mlfb=3VA1025-4ED32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1025-4ED32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1025-4ED32-0CA0 and how is it quoted?","answer":"We source and quote this MCCB to order against an RFQ. Availability and current pricing are confirmed at quote time — send your quantity and target delivery window for a firm price."},{"question":"What are the key interrupting ratings for this breaker?","answer":"121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. The 25 A continuous current rating holds up to 50 °C ambient, then derates to 22.5 A at 70 °C."},{"question":"Does the 3VA1025-4ED32-0CA0 include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) as standard — the auxiliary release design is UVR type. No auxiliary contact or communication module is included."},{"question":"What is the physical size of this MCCB?","answer":"130 mm high, 76.2 mm wide, 70 mm deep. It's a 3-pole unit with IP40 front protection for indoor panel mounting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1025-4ED32-0CA0","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/3VA1025-4ED32-0CA0 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}}