{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-6EF32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-6EF32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-6EF32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-6EF32-0DH0, molded case circuit breaker, 3-pole, 20 A rated current, 220 kA breaking capacity at 240 V AC, line protection design, with undervoltage release and auxiliary switches.","salesMarkdown":"It carries a rated current of 20 A across the ambient range from 40 °C through 55 °C, derating to 19 A at 60 °C and above — so the 20 A rating holds in most ventilated enclosures without a derate penalty. The interrupting capacity reaches 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V, which places it in the high-breaking category for fault currents at the service entrance or in large motor-control-center feeders. The breaker measures 76.2 mm wide, 130 mm tall, and 70 mm deep — a 3-pole footprint that fits standard SENTRON 3VA panel cutouts and busbar systems. Maximum power loss is 14.5 W, which matters for thermal budgeting in a sealed enclosure; adjacent units need the manufacturer's spacing rules to avoid cumulative heating. The design includes a trip indicator and supports line-protection-only duty (no ground-fault monitoring version).","metaTitle":"Siemens SENTRON 3VA1120-6EF32-0DH0 MCCB, 20 A, 220 kA at 240","metaDescription":"Siemens SENTRON 3VA1120-6EF32-0DH0 molded case circuit breaker, 3-pole, 20 A rated at 40 °C, 220 kA breaking capacity at 240 V. Active production. Quoted to order against 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":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"14.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11206EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","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":"3VA9608-0BB25","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"H","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","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=454626&mlfb=3VA1120-6EF32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF32-0DH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1120-6EF32-0DH0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price figure is published here."},{"question":"What are the key ratings of this MCCB?","answer":"Rated current 20 A (holds from 40 °C to 55 °C, derates to 19 A at 60–70 °C). Breaking capacity: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V. Rated insulation voltage 800 V. Three poles, line protection design, with undervoltage release and two auxiliary switches plus one trip-alarm switch."},{"question":"What compliance documentation is available for this breaker?","answer":"As a Siemens SENTRON product, the 3VA1120-6EF32-0DH0 carries CE marking for the European market and is designed to meet IEC 60947-2. RoHS and REACH compliance declarations are standard from the manufacturer. UL/CSA listings are typical for the 3VA platform but should be verified against the specific order-code suffix for the target jurisdiction."},{"question":"Will this drop into a panel specified around a 3VA1110-5EF32-0AM0?","answer":"Both are 3-pole SENTRON MCCBs in the same physical frame size (76.2 mm width, 130 mm height, 70 mm depth), so the footprint and busbar connection points are identical. The 3VA1120-6EF32-0DH0 carries a 20 A rating versus the 3VA1110's lower current, and the auxiliary switch configuration differs — verify the auxiliary contact wiring if the existing panel uses those terminals. No rewiring of the main power path is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-6EF32-0DH0","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/3VA1120-6EF32-0DH0 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}}