{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-6EE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-6EE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-6EE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-6EE42-0AA0, 4-pole molded case circuit breaker, 20 A rated current, TM220 thermal-magnetic release, 220 kA interrupting capacity at 240 V AC.","salesMarkdown":"## Siemens 3VA1120-6EE42-0AA0 — 4-Pole MCCB with TM220 Release The Siemens 3VA1120-6EE42-0AA0 is a SENTRON molded case circuit breaker (MCCB) configured as a 4-pole unit for line protection. It carries a 20 A continuous rating at 40 °C ambient, with the TM220 thermal-magnetic release providing both overload and short-circuit protection in a single device. The interrupting capacity is the headline figure here: 220 kA at 240 V AC, 154 kA at 415 V, and 121 kA at 440 V. That drops to 17 kA at 500 V and 690 V, so the part is sized for high-fault installations at the lower distribution voltages common in North American and some Asian panels. The rated insulation voltage is 800 V, and the maximum operating voltage is 690 V AC. The 20 A rating holds steady from 40 °C through 55 °C, then derates to 19 A at 60 °C and 65 °C, and stays at 19 A up to the 70 °C maximum operating temperature. That means in a warm enclosure — say a panel near a furnace line or in a non-conditioned electrical room — you still get the full 20 A up to 55 °C before any derating applies. Maximum power loss is 12 W, which matters for thermal budgeting inside a sealed enclosure. The front face carries IP40 protection — suitable for general indoor panel use where tools or fingers won't contact live parts, but not for washdown or dust-prone environments. ## Mounting and Integration The MCCB occupies 101.6 mm width, 130 mm height, and 70 mm depth — a 4-pole footprint that fits standard Siemens SENTRON panelboard and switchboard cutouts. No undervoltage release, no communication function, and no ground-fault monitoring on this variant; it is a straight thermal-magnetic breaker for basic line protection. Storage temperature range is -40 °C to 80 °C, so it can sit in an unheated warehouse or shipping container without issue. Operating range is -25 °C to 70 °C, covering most indoor industrial environments.","metaTitle":"Siemens 3VA1120-6EE42-0AA0 SENTRON MCCB, 4-Pole, 20 A, 220 k","metaDescription":"Siemens 3VA1120-6EE42-0AA0 SENTRON 4-pole MCCB, 20 A rated, TM220 release, 220 kA at 240 V. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","Height":"130 mm","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]":"4 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"4","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","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","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM220","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","design of the N-conductor protection":"without","operating voltage / at AC / rated value":"690 V","Max. rated operational voltage Ue with DC":"600 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6,5 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a2aa926b9dae5e6c09e6a7bbc0520507.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=69585&mlfb=3VA1120-6EE42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EE42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1120-6EE42-0AA0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is 3VA1120-6EE42-0AA0's interrupting capacity at 240 V?","answer":"The interrupting capacity is 220 kA at 240 V AC."},{"question":"What is the rated current of 3VA1120-6EE42-0AA0 at 40 °C?","answer":"The rated current is 20 A at 40 °C ambient."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-6EE42-0AA0","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/3VA1120-6EE42-0AA0 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}}