{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-3EF36-0JC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-3EF36-0JC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-3EF36-0JC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3EF36-0JC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-3EF36-0JC0, molded case circuit breaker, 3-pole, 20 A, TM240 thermal-magnetic release, 75.6 kA at 240 V, line protection, IP40 front.","salesMarkdown":"The 20 A rating holds flat from 40 °C up to 50 °C, then derates 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 — so in a warm panel you lose about 10 % of capacity at the top end. The interrupting ratings climb steeply with voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. That 75.6 kA at 240 V means it can safely clear a fault on a high-capacity 240 V distribution bus without rupturing; the 10.5 kA at 690 V is still adequate for most 690 V motor circuits. It is a straightforward line-protection MCCB for standard distribution panels. The 3VA1120-3EF36-0JC0 measures 76.2 mm wide, 130 mm high, and 70 mm deep. The 76.2 mm width is a standard 3-pole MCCB footprint for this SENTRON generation — it occupies three 25.4 mm (1-inch) module positions on a DIN rail or panel-mount base. The breaker has a voltage-trigger function (shunt trip) and a latching endurance of 15,000 cycles — adequate for infrequent switching in a distribution role, not for daily motor starting.","metaTitle":"Siemens 3VA1120-3EF36-0JC0 SENTRON MCCB, 20 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1120-3EF36-0JC0 molded case circuit breaker, 20 A rated, 3-pole, line protection, TM240 release, 75.6 kA at 240 V. Current 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":"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":"2 auxiliary switches 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":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL32","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":"3VA9988-0AA12","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":"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=21177&mlfb=3VA1120-3EF36-0JC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3EF36-0JC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1120-3EF36-0JC0 and 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 the closest functional second-source for 3VA1120-3EF36-0JC0?","answer":"The 3VA1020-3ED36-0AA0 is a 3-pole 20 A MCCB in the same SENTRON family with the same width (76.2 mm) and depth (70 mm), so it drops into the same panel footprint. However, the auxiliary contact configuration and shunt trip differ — verify the auxiliary release design matches your circuit before substituting."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"The product reference code per DIN EN 81346-2 is Q. The evidence does not list RoHS, REACH, UL, or IEC certificates directly, but as a current-production SENTRON MCCB it typically carries CE marking and UL/CSA recognition — confirm the specific certification package with the datasheet or your Siemens contact."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-3EF36-0JC0","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/3VA1120-3EF36-0JC0 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}}