{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1163-4EF36-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1163-4EF36-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1163-4EF36-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1163-4EF36-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 3VA1163-4EF36-0BA0, molded case circuit breaker (MCCB), 3-pole, 63 A at 40 °C, breaking capacity 121 kA at 240 V, with undervoltage release.","salesMarkdown":"## 63 A MCCB with undervoltage release — line protection duty The SENTRON 3VA1163-4EF36-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated 63 A at 40 °C with a TM240 thermal-magnetic overcurrent release, designed for line protection in distribution panels. It carries a 121 kA breaking capacity at 240 V AC, derating to 75.6 kA at 415 V and 52.5 kA at 440 V — figures that tell you this breaker clears high-fault scenarios without cascading upstream. The 63 A rating holds flat from 40 °C up to 50 °C, then derates gently — 62 A at 55 °C, 60 A at 65 °C, and 58 A at 70 °C. Power dissipation is 19.8 W maximum — a number worth checking against your enclosure's thermal budget if you're stacking several breakers side by side. Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB footprint that fits existing SENTRON 3VA panel cutouts. The 3-pole format with no neutral pole means it's for three-phase line protection (not a 3P+N application). ## Integration note — undervoltage release wiring The factory-fitted undervoltage release (UVR) is wired to the breaker's auxiliary terminals. If you're replacing a plain MCCB without UVR, you'll need to run a control voltage to the UVR coil — typically 24 V DC or 230 V AC depending on the release variant ordered.","metaTitle":"SENTRON 3VA1163-4EF36-0BA0 MCCB, 63 A, 3-Pole, 121 kA at 240","metaDescription":"SENTRON 3VA1163-4EF36-0BA0 molded case circuit breaker, 63 A rated at 40 °C, 3-pole, breaking capacity 121 kA at 240 V. Active production. Sourced 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":"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":"63 A","at 45 °C":"63 A","at 50 °C":"63 A","at 55 °C":"62 A","at 60 °C":"61 A","at 65 °C":"60 A","at 70 °C":"58 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":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"19.8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11634EF360AA0","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":"3VA9608-0BB11","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=516463&mlfb=3VA1163-4EF36-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1163-4EF36-0BA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 415 V?","answer":"75.6 kA at 415 V AC, with higher ratings at lower voltages (121 kA at 240 V) and lower ratings at higher voltages (52.5 kA at 440 V, 11.9 kA at 500 V and 690 V)."},{"question":"What does the undervoltage release do on this breaker?","answer":"The factory-fitted undervoltage release (UVR) trips the breaker when its control voltage drops below approximately 35 % of rated value, and prevents reclosure until the control voltage returns — used for safety or undervoltage protection schemes."},{"question":"Where can I buy 3VA1163-4EF36-0BA0 and how is it quoted?","answer":"This part is sourced and quoted to order through independent distribution against an RFQ. Availability and current pricing are confirmed at quote time — no stock or price figure is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1163-4EF36-0BA0","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/3VA1163-4EF36-0BA0 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}}