{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-4ED36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-4ED36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-4ED36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-4ED36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-4ED36-0AA0, molded case circuit breaker, 3-pole, 20 A rated current, 121 kA breaking capacity at 240 VAC, TM210 overcurrent release, line protection design.","salesMarkdown":"## MCCB for panel builders — 20 A, 3-pole, TM210 release The Siemens SENTRON 3VA1120-4ED36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 20 A continuous current across the 40 °C to 55 °C ambient range, derating to 19 A at 60–70 °C. Breaking capacity is 121 kA at 240 VAC, 75.6 kA at 415 VAC, 52.5 kA at 440 VAC, and 11.9 kA at both 500 VAC and 690 VAC. The 70 mm depth, 76.2 mm width, and 130 mm height fit standard SENTRON 3VA panel cutouts and busbar arrangements. ## Sourcing and lifecycle — active, quoted to order Maximum power loss is 12 W, which factors into panel thermal budgeting when grouping multiple breakers in a confined enclosure. The 3-pole design connects to three-phase busbars; line and load lugs accept copper or aluminum conductors per the terminal specifications in the device manual. If you need shunt trip, UVR, or auxiliary contacts, those are add-on accessories in the 3VA family.","metaTitle":"Siemens 3VA1120-4ED36-0AA0 SENTRON MCCB, 20 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1120-4ED36-0AA0 molded case circuit breaker, 20 A rated, 3-pole, 121 kA breaking capacity at 240 VAC. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 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":"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","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM210","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":"0","Switching Capacity Class Of The Circuit Breaker":"S","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":"https://cdn.aoctrl.com/006e74fe6ae72194dd271e943ba4b4cf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=182872&mlfb=3VA1120-4ED36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-4ED36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1120-4ED36-0AA0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is the breaking capacity of 3VA1120-4ED36-0AA0 at 240 V?","answer":"121 kA at 240 VAC. It also carries 75.6 kA at 415 VAC, 52.5 kA at 440 VAC, and 11.9 kA at both 500 VAC and 690 VAC."},{"question":"Will 3VA1120-4ED36-0AA0 drop into a panel specified around 3VA1110-5ED32-0AA0?","answer":"Both are 3-pole SENTRON 3VA MCCBs with the same physical footprint (70 mm depth, 76.2 mm width, 130 mm height), so the mechanical fit is identical. The difference is in the overcurrent release and rating — verify the trip curve and ampacity match your coordination study before substituting."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"Siemens provides RoHS and REACH declarations, plus UL and IEC certifications for the SENTRON 3VA series. Specific certificate numbers and declaration documents are available on request at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-4ED36-0AA0","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/3VA1120-4ED36-0AA0 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}}