{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-6EF36-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-6EF36-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-6EF36-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF36-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-6EF36-0AC0, molded case circuit breaker, 3-pole, 20 A rated at 40 °C, TM240 thermal-magnetic release, 220 kA breaking capacity at 240 VAC.","salesMarkdown":"## SENTRON 3VA1120-6EF36-0AC0 — line-protection MCCB, 20 A frame The Siemens SENTRON 3VA1120-6EF36-0AC0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection, carrying a 20 A rating at 40 °C ambient and a TM240 thermal-magnetic overcurrent release. It breaks up to 220 kA at 240 VAC, 154 kA at 415 VAC, 121 kA at 440 VAC, and 17 kA at both 500 VAC and 690 VAC — so the interrupting capacity drops sharply above 440 V; at 690 V the 17 kA figure governs the fault-current limit for that installation. This is a current-production part (lifecycle stage: current), so it moves through the standard Siemens distribution channel. The breaker measures 76.2 mm wide, 130 mm tall, and 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures. The 70 mm depth means it clears a typical 100 mm deep gland plate with room for wiring. The breaker holds its 20 A rating from 40 °C through 55 °C; at 60 °C and 65 °C it derates to 19 A, and at 70 °C it stays at 19 A. The trip indicator is absent on this variant — you will not get a visual flag; the auxiliary switches are the only remote status.","metaTitle":"Siemens 3VA1120-6EF36-0AC0 SENTRON MCCB, 20 A, 3-Pole, 220 k","metaDescription":"Siemens SENTRON 3VA1120-6EF36-0AC0 molded case circuit breaker, 20 A rated, 3-pole, 220 kA breaking capacity at 240 VAC. Current-production, sourced to order. Request RFQ.","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":"220 kA","at 415 V":"154 kA","at 440 V":"121 kA","at 500 V":"17 kA","at 690 V":"17 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":"No","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":"3VA11206EF360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","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","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"H","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=496924&mlfb=3VA1120-6EF36-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF36-0AC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1120-6EF36-0AC0 at different voltages?","answer":"At 240 V it breaks 220 kA; at 415 V, 154 kA; at 440 V, 121 kA; at 500 V and 690 V, 17 kA. The sharp drop above 440 V means the available fault current at the installation point must be verified against the 17 kA limit for 480/600 V class systems."},{"question":"Where can I buy 3VA1120-6EF36-0AC0 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."},{"question":"What are the physical dimensions of 3VA1120-6EF36-0AC0?","answer":"Width 76.2 mm, height 130 mm, depth 70 mm — a standard 3-pole MCCB footprint."},{"question":"Does 3VA1120-6EF36-0AC0 include a trip indicator or undervoltage release?","answer":"No. This variant has no trip indicator, no undervoltage release, no ground-fault monitoring, and no communication function. It carries two HQ auxiliary switches for remote status."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-6EF36-0AC0","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/3VA1120-6EF36-0AC0 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}}