{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-6EF32-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-6EF32-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-6EF32-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF32-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-6EF32-0KH0, 3-pole molded case circuit breaker, 20 A rated at 40 °C, 220 kA interrupting at 240 V, line protection with shunt trip and auxiliary switches.","salesMarkdown":"## Rating and fit for line protection The Siemens SENTRON 3VA1120-6EF32-0KH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 20 A continuously at 40 °C ambient — a rating that holds steady through 55 °C before derating to 19 A at 60 °C. Its interrupting capacity reaches 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V, with a floor of 17 kA at 500 V and 690 V. ## Integrated auxiliaries and release options The auxiliary switch set provides status feedback for PLC or SCADA monitoring. There is no undervoltage release fitted, no ground-fault monitoring module, and no communication function onboard — this is a straightforward line-protection device with wired auxiliaries, not a networked power breaker. ## Panel fit and thermal management Dimensions are 130 mm height, 76.2 mm width, and 70 mm depth — a compact 3-pole MCCB footprint that fits standard panel mounting. Maximum power loss is 12 W, which should be factored into enclosure thermal calculations, especially when multiple breakers are ganged. The trip indicator provides local visual status for troubleshooting without opening the panel door. ## Lifecycle and compliance posture The lifecycle stage is recorded as current production. This is an active Siemens SENTRON 3VA series part, not subject to phase-out notices at this time.","metaTitle":"Siemens SENTRON 3VA1120-6EF32-0KH0 MCCB, 20 A, 220 kA at 240","metaDescription":"Siemens SENTRON 3VA1120-6EF32-0KH0 molded case circuit breaker, 3-pole, 20 A rated at 40 °C, 220 kA interrupting capacity at 240 V. Line protection, shunt trip, auxiliary switches.","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":"20 A","at 45 °C":"20 A","at 50 °C":"20 A","at 55 °C":"20 A","at 60 °C":"19 A","at 65 °C":"19 A","at 70 °C":"19 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":"12 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11206EF320AA0","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":"3VA9688-0BL33","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":"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=151555&mlfb=3VA1120-6EF32-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF32-0KH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1120-6EF32-0KH0 and what is the lead time?","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 count or lead-time number is published here, but a formal quotation will include both."},{"question":"What compliance documentation is available for 3VA1120-6EF32-0KH0?","answer":"The SENTRON 3VA series carries full declarations of conformity for RoHS, REACH, UL, and IEC standards. Specific certificates are available on request as part of the supplier-quality documentation package."},{"question":"What are the key ratings of 3VA1120-6EF32-0KH0?","answer":"It is a 3-pole MCCB rated 20 A continuous at 40 °C, with interrupting capacity of 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V. Rated insulation voltage is 800 V. It includes a shunt trip release and 2 auxiliary switches plus 1 trip alarm switch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-6EF32-0KH0","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/3VA1120-6EF32-0KH0 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}}