{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1025-4ED32-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1025-4ED32-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1025-4ED32-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1025-4ED32-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1025-4ED32-0KH0, molded case circuit breaker, 3-pole, 25 A, 121 kA breaking capacity at 240 VAC, line protection design.","salesMarkdown":"Above that, the thermal curve pulls the rating down to 23 A at 70 °C — a detail the thermal coordination study needs, not just the nameplate number. Breaking capacity hits 121 kA at 240 VAC and still holds 75.6 kA at 415 VAC, so it handles high-fault commercial and light-industrial service entrances without cascading upstream. The breaker ships with a built-in shunt trip (STL) and provisions for two auxiliary switches plus a trip alarm switch — enough for remote status and emergency-off integration without an add-on module. ## Sizing and selectivity for the electrical engineer If the BOM calls for those features, the 3VA1110-5ED36-0AC0 sibling adds electronic trip and communication, but at a higher amp frame. For a straight thermal-magnetic feeder breaker with shunt trip, this order code is the leaner fit. At 70 mm deep, 76.2 mm wide, and 130 mm tall, this 3-pole MCCB fits standard SENTRON mounting footprints. The 76.2 mm width is three 25.4 mm pole pitches — matches the busbar and DIN-rail adapter pattern used across the 3VA line. Terminal lugs accept copper or aluminum conductors up to the rated cross-section; torque values are on the nameplate. No communication wiring needed — the shunt trip takes two control wires, the auxiliary switches add four more for status feedback to the PLC or annunciator.","metaTitle":"Siemens 3VA1025-4ED32-0KH0 SENTRON MCCB, 25 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1025-4ED32-0KH0 molded case circuit breaker, 25 A, 3-pole, 121 kA breaking capacity at 240 VAC. Active 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":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 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":"3VA10254ED320AA0","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":"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","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL33","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":"No","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":"S","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=537021&mlfb=3VA1025-4ED32-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1025-4ED32-0KH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1025-4ED32-0KH0?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here."},{"question":"Will 3VA1025-4ED32-0KH0 drop into a panel specified around 3VA1110-5ED36-0AC0 without rewiring?","answer":"No. The 3VA1110-5ED36-0AC0 is a larger frame (higher amp rating, electronic trip) with a different mounting footprint and busbar pitch. The 3VA1025-4ED32-0KH0 is a 25 A thermal-magnetic breaker — physically smaller, different terminal spacing, and no communication port. Panel rework and busbar changes are required."},{"question":"What compliance documentation does Siemens provide for 3VA1025-4ED32-0KH0?","answer":"Siemens SENTRON MCCBs carry UL, IEC, and CSA certifications as standard for the series. RoHS and REACH declarations are available through Siemens' documentation portal. Specific certificate numbers are printed on the nameplate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1025-4ED32-0KH0","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/3VA1025-4ED32-0KH0 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}}