{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-6EF36-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-6EF36-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-6EF36-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF36-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-6EF36-0BH0, 3-pole molded case circuit breaker, 20 A rated continuous current, TM240 thermal-magnetic release, 220 kA interrupting capacity at 240 V AC.","salesMarkdown":"The Siemens SENTRON 3VA1120-6EF36-0BH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, with a continuous current rating of 20 A that holds across ambient temperatures from 40 °C up to 50 °C before it starts to derate — at 55 °C it's still 19.2 A, and it drops to 18 A by 70 °C. That thermal curve matters if you're stuffing this into a warm panel; the rating doesn't fall off a cliff at 40 °C like some older frames do. The interrupting capacity is the headline here: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and still 17 kA at 690 V. Those numbers mean this breaker can sit upstream of a large transformer or a high-fault panelboard and still clear a bolted fault without welding its contacts shut. The auxiliary contact block is a 2-auxiliary-switch plus 1-trip-alarm-switch HQ configuration, which gives you two form-C signals for status feedback and a dedicated alarm contact that only changes state on a trip event — handy for a PLC input that logs faults separately from run status. The 3VA1120-6EF36-0BH0 measures 76.2 mm wide by 130 mm tall by 70 mm deep. That 76.2 mm width is a standard 3-pole MCCB footprint — three modules at 25.4 mm each — so it drops into a panel that was laid out for a 3-pole SENTRON frame without needing to shift DIN rail or re-drill mounting holes. For sourcing: we quote this to order against an RFQ. If you're comparing it against the 3VA1112-5EF32-0CA0, the main difference is the frame size and the release — the 3VA1112 is a 125 A frame with an electronic release, while this is a 20 A frame with a thermal-magnetic TM240. They're not footprint-compatible; the 3VA1120 is the smaller frame.","metaTitle":"Siemens 3VA1120-6EF36-0BH0 SENTRON MCCB, 20 A, 220 kA at 240","metaDescription":"Siemens SENTRON 3VA1120-6EF36-0BH0 molded case circuit breaker, 3-pole, 20 A rated, TM240 release, 220 kA at 240 V. Active production, sourced to order. Request quote.","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":"Yes","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":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"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=434309&mlfb=3VA1120-6EF36-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF36-0BH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1120-6EF36-0BH0 and get a price?","answer":"We source and quote this part to order against an RFQ. Availability and current pricing are confirmed at quote time through our independent distribution channels."},{"question":"What is the interrupting capacity of this MCCB at different voltages?","answer":"220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V."},{"question":"Does 3VA1120-6EF36-0BH0 include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) as standard, design code 3VA9608-0BB11 for the integrated auxiliary trip."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-6EF36-0BH0","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/3VA1120-6EF36-0BH0 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}}