{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-3EF32-0HA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-3EF32-0HA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-3EF32-0HA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3EF32-0HA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-3EF32-0HA0, molded case circuit breaker, 3-pole, 20 A rated continuous current, interrupting capacity 75.6 kA at 240 V, TM240 thermal-magnetic release, shunt trip, line protection version.","salesMarkdown":"It's built for line protection — the standard job of a distribution MCCB in a panel — and carries interrupting ratings that climb to 75.6 kA at 240 V, 52.5 kA at 415 V, and still 10.5 kA at 690 V. That kind of headroom means it clears high-fault bolted faults without cascading upstream, which is the main reason you spec a SENTRON over a miniature breaker. At 55 °C it drops to 19.2 A, and at 70 °C it's 18 A. No trip indicator, no auxiliary contacts, no undervoltage release — this is a bare-bones line-protection breaker with the shunt trip as the only accessory. If you need status feedback, you'll add the external auxiliary trip (order code 3VA9688-0BL30). The breaker measures 70 mm deep, 76.2 mm wide, and 130 mm tall — a standard SENTRON 3VA footprint that fits the DIN-rail or screw-mount pattern in most distribution boards. The 3-pole body takes up three module widths on the rail.","metaTitle":"Siemens 3VA1120-3EF32-0HA0 SENTRON MCCB, 20 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1120-3EF32-0HA0 molded case circuit breaker, 20 A rated, 3-pole, interrupting 75.6 kA at 240 V. Active production. Sourced 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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 690 V":"10.5 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":"Yes","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":"Without","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":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL30","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":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"N","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=519306&mlfb=3VA1120-3EF32-0HA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3EF32-0HA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1120-3EF32-0HA0 and how do I get a price?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"When sourcing 3VA1120-3EF32-0HA0, what's the closest functional second-source?","answer":"The closest functional peer in the SENTRON family is the 3VA1110-5EE32-0JA0, but it has a different overcurrent release and accessory configuration. Verify the trip curve and shunt trip compatibility before substituting — it's not a guaranteed drop-in."},{"question":"What is 3VA1120-3EF32-0HA0's listed depth?","answer":"The depth is 70 mm, with a width of 76.2 mm and a height of 130 mm."},{"question":"What compliance documentation does this breaker provide?","answer":"The evidence does not list specific compliance documents (RoHS, REACH, UL, IEC) for this order code. The part is a Siemens SENTRON MCCB, which typically carries IEC 60947-2 certification, but you should request the declaration from the supplier at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-3EF32-0HA0","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/3VA1120-3EF32-0HA0 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}}