{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-3EF36-0JA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-3EF36-0JA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-3EF36-0JA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3EF36-0JA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-3EF36-0JA0, molded case circuit breaker, 3-pole, TM240 thermal-magnetic release, 20 A rated at 40 °C, breaking capacity 75.6 kA at 240 V.","salesMarkdown":"It carries a continuous 20 A rating that holds flat from 40 °C through 55 °C, then derates to 19 A at 60 °C and 65 °C, and stays at 19 A up to 70 °C. That means in a warm cabinet — say, a non-ventilated enclosure near a line reactor — you still get the full 20 A up to 55 °C before any reduction kicks in. At 240 V it interrupts 75.6 kA; at 415 V it handles 52.5 kA; at 440 V it drops to 32 kA; at 500 V and 690 V it holds at 11.9 kA. The overcurrent release is a TM240 — a thermal-magnetic unit with a fixed thermal pickup at 20 A and a magnetic trip that responds to short-circuit currents. There is no undervoltage release, no shunt trip beyond the listed auxiliary release, no ground-fault monitoring module, and no communication function built in. It is a straight line-protection breaker: install it, feed it, and it trips on overcurrent or short. Dimensions are 130 mm tall, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that drops into a SENTRON panelboard or onto a DIN-rail adapter without reworking the gland plate.","metaTitle":"Siemens 3VA1120-3EF36-0JA0 SENTRON MCCB, 20A, 75.6kA at 240V","metaDescription":"Siemens SENTRON 3VA1120-3EF36-0JA0 molded case circuit breaker, 20A rated, 3-pole, TM240 release, 75.6kA at 240V. 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","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 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]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","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","Of The Supplied Basic Switch":"3VA11203EF360AA0","Design Of The Auxiliary Release":"shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","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","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL32","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 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":"N","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=467934&mlfb=3VA1120-3EF36-0JA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3EF36-0JA0/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3VA1120-3EF36-0JA0 and how is it quoted for volume purchases?","answer":"This MCCB is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"What is 3VA1120-3EF36-0JA0's listed depth and width?","answer":"Depth is 70 mm, width is 76.2 mm — a standard 3-pole MCCB footprint that fits SENTRON panelboards and DIN-rail adapters."},{"question":"What breaking capacity does this MCCB have at 240 V and 415 V?","answer":"At 240 V it interrupts 75.6 kA; at 415 V it handles 52.5 kA. Those are high-interrupt ratings for a 20 A frame, suitable for strong fault-current buses."},{"question":"What compliance documentation does Siemens provide for 3VA1120-3EF36-0JA0?","answer":"As a SENTRON MCCB, this part carries the usual Siemens declarations for RoHS, REACH, and IEC/UL standards applicable to the 3VA series. Specific certificates are available on request at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-3EF36-0JA0","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/3VA1120-3EF36-0JA0 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}}