{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1163-4EF36-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1163-4EF36-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1163-4EF36-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1163-4EF36-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1163-4EF36-0BH0, molded case circuit breaker, 3-pole, 63 A rated current, line protection design, 121 kA breaking capacity at 240 V, with undervoltage release and auxiliary switches.","salesMarkdown":"Its continuous current rating holds at 63 A from 40 °C through 50 °C ambient, then derates to 58 A at 70 °C — a thermal curve you can rely on for panel sizing without headroom guesswork. The breaking capacity is the headline figure for fault coordination: 121 kA at 240 V, 75.6 kA at 415 V, and still 11.9 kA at 690 V. ## Built-in auxiliaries and release — what's on board The UVR ensures the breaker trips on loss of control voltage — standard for emergency-stop chains or undervoltage protection schemes where you need the load disconnected when the control supply drops. A trip indicator is present, giving a local mechanical flag that the breaker has opened on fault rather than manually. The breaker does not include a communication module or ground-fault monitoring — it's a straight line-protection device with the auxiliaries you'd expect for remote status and undervoltage control. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard SENTRON 3VA frame size that fits the usual DIN-rail or mounting-plate footprint in distribution boards.","metaTitle":"Siemens 3VA1163-4EF36-0BH0 SENTRON MCCB, 63A, 3-Pole, 121kA@","metaDescription":"Siemens SENTRON 3VA1163-4EF36-0BH0 molded case circuit breaker, 63A rated at 40°C, 3-pole, 121kA breaking capacity 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":"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":"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":"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 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":"3VA9608-0BB11","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=396431&mlfb=3VA1163-4EF36-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1163-4EF36-0BH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"The breaking capacity is 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. These are the rated ultimate short-circuit breaking capacities (Icu) per IEC 60947-2."},{"question":"Does this breaker include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) as the auxiliary release type. The UVR will trip the breaker when the control voltage falls below its dropout threshold."},{"question":"What auxiliary switches are fitted on 3VA1163-4EF36-0BH0?","answer":"The breaker comes with 2 auxiliary switches plus 1 trip alarm switch (HQ designation). This provides both status indication and a separate fault-signal contact."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1163-4EF36-0BH0","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/3VA1163-4EF36-0BH0 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}}