{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-6EF32-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-6EF32-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-6EF32-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF32-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-6EF32-0DA0, molded case circuit breaker, 3-pole, 20 A, TM240 overcurrent release, with undervoltage release, 220 kA at 240 VAC.","salesMarkdown":"It carries a TM240 overcurrent release, a thermal-magnetic unit with a 240 A fixed magnetic trip threshold, and a continuous current rating of 20 A that holds steady from 40 °C up to 55 °C before it starts to derate at 60 °C. The 220 kA interrupting rating at 240 VAC is the headline figure — that's the short-circuit current it can safely clear at the lowest common industrial voltage. At 415 V it's still 154 kA, at 440 V it's 121 kA, and at 500 V and 690 V it drops to 17 kA. It's sized for high-fault locations where the available fault current would blow a standard 10 kA or 25 kA MCCB apart. ## Undervoltage release and panel integration This order code includes an undervoltage release (UVR) — the entry confirms it's an undervoltage release (UVR) design. If you're wiring a safety-rated panel or an emergency-stop chain that needs to kill the feeder on undervoltage, this UVR saves you an external relay. The breaker itself is 76.2 mm wide, 130 mm tall, and 70 mm deep — standard SENTRON 3VA footprint, so it'll drop into a DIN-rail or screw-mounted panel without re-drilling the backplate. Power dissipation maxes at 14.5 W, which is modest for a 20 A MCCB; no forced cooling needed in a standard panel.","metaTitle":"SENTRON 3VA1120-6EF32-0DA0 MCCB, 20 A, 220 kA at 240 V","metaDescription":"SENTRON 3VA1120-6EF32-0DA0 molded case circuit breaker, 3-pole, 20 A rated, 220 kA breaking capacity at 240 VAC. TM240 release, undervoltage release. Current lifecycle. Request 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":"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":"No","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":"14.5 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 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":"0","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=384387&mlfb=3VA1120-6EF32-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF32-0DA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1120-6EF32-0DA0 drop into a panel that was specified around 3VA1110-5ED36-0AC0 without rewiring?","answer":"Both are SENTRON 3VA series MCCBs with the same 3-pole form factor and similar dimensions — 76.2 mm wide, 130 mm tall, 70 mm deep. The physical footprint is identical, so it will mount on the same DIN rail or screw pattern. However, the electrical ratings differ: this unit has a 20 A continuous rating and TM240 release, while the 3VA1110-5ED36-0AC0 has a different rating. Verify the load current and short-circuit requirements before swapping — the mechanical fit is fine, but the protection curve must match your circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-6EF32-0DA0","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/3VA1120-6EF32-0DA0 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}}