{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-6EF32-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-6EF32-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-6EF32-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF32-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-6EF32-0AB0, 3-pole molded case circuit breaker, 20 A rated continuous current, TM240 thermal-magnetic release, 220 kA breaking capacity at 240 V AC, 2 auxiliary switches HP.","salesMarkdown":"Its interrupting ratings are the headline: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V. Thermal derating is minimal through 50 °C — still 20 A — then drops to 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C. In a sealed panel with ambient near 60 °C, you lose about 1.2 A of headroom; factor that into the load calculation if the panel runs hot. ## Panel fit — footprint and auxiliaries That 76.2 mm width is a 3-pole MCCB standard — it occupies three 25.4 mm module spaces on a DIN rail or panel-mount grid. The 70 mm depth is shallower than many older-frame MCCBs, which helps in tight gland-plate clearance or when mounting flush in a shallow enclosure. Comes with 2 auxiliary switches HP (high-performance) factory-fitted. That means you have two independent signal contacts for status feedback — one for the panel PLC input, one for a remote annunciator or safety chain.","metaTitle":"Siemens 3VA1120-6EF32-0AB0 SENTRON MCCB, 20 A, 220 kA at 240","metaDescription":"Siemens 3VA1120-6EF32-0AB0 SENTRON 3-pole MCCB, 20 A rated continuous current, 220 kA breaking capacity at 240 V. TM240 release, 2 aux switches. Active production — quoted to order","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":"220 kA","at 415 V":"154 kA","at 440 V":"121 kA","at 690 V":"17 kA","at 40 °C":"20 A","at 45 °C":"20 A","at 50 °C":"20 A","at 55 °C":"19.2 A","at 60 °C":"18.8 A","at 65 °C":"18.4 A","at 70 °C":"18 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":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches HP","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"20 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"without auxiliaryrelease","Ground fault monitoring version":"Without","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","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":"Yes","Adjustable response value current / Ir max.":"20 A","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"160 A","Adjustable response value current / lr min.":"14 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA11","Switching capacity class of the circuit breaker":"H","Max. rated operational current of the frame size":"160 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=505760&mlfb=3VA1120-6EF32-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF32-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA1120-6EF32-0AB0's depth and width?","answer":"Depth is 70 mm, width is 76.2 mm (standard 3-pole MCCB width, three 25.4 mm modules)."},{"question":"Where can I buy the 3VA1120-6EF32-0AB0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What breaking capacity does the 3VA1120-6EF32-0AB0 have at 240 V?","answer":"220 kA at 240 V AC, with 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V."},{"question":"Does the 3VA1120-6EF32-0AB0 include auxiliary contacts?","answer":"Yes, it ships with 2 factory-fitted high-performance auxiliary switches for status feedback."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-6EF32-0AB0","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/3VA1120-6EF32-0AB0 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}}