{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1163-4EF36-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1163-4EF36-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1163-4EF36-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1163-4EF36-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1163-4EF36-0KH0, molded case circuit breaker, 3-pole, 63 A, TM240 overcurrent release, 121 kA at 240 V, line protection.","salesMarkdown":"## 63 A MCCB with 121 kA interrupt at 240 V — the short-circuit rating that decides the panel The headline number is the interrupting capacity: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — that 121 kA figure means it clears a bolted fault at the service entrance without the arc flashing upstream, which is the spec that governs whether this breaker lands in the main distribution or a downstream subpanel. Above that it steps down: 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C. If the panel ambient hits 55 °C, the breaker is good for 60 A continuous — not 63. That derating curve is the difference between a breaker that holds and one that nuisance-trips on a hot summer afternoon. That 76.2 mm (3-inch) width is standard for a 3-pole MCCB in this class — it occupies three 25 mm DIN spaces. ## Integration notes — aux contacts, shunt trip, and the IP40 front The auxiliary contact block (2 aux + 1 alarm) is integrated from the factory — no separate add-on module to order and snap in. The shunt trip (STL) is also factory-fitted, so there is no field-install kit to track. That saves a BOM line and eliminates the risk of a missing accessory holding up a panel build. The 15 000 mechanical endurance cycles (latching) is typical for this class — adequate for a feeder breaker that cycles infrequently, not a daily-switched load.","metaTitle":"Siemens 3VA1163-4EF36-0KH0 SENTRON MCCB, 63 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1163-4EF36-0KH0 molded case circuit breaker, 63 A rated, 3-pole, line protection. Breaking capacity 121 kA at 240 V. Sourced 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","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 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":"60.48 A","at 60 °C":"59.22 A","at 65 °C":"57.96 A","at 70 °C":"56.7 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"63 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"63 A","Adjustable response value current / li max.":"630 A","Adjustable response value current / li min.":"315 A","Adjustable response value current / lr min.":"44 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"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=355839&mlfb=3VA1163-4EF36-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1163-4EF36-0KH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1163-4EF36-0KH0 at different voltages?","answer":"121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. The 240 V rating is the standout — it handles service-entrance fault levels."},{"question":"Does 3VA1163-4EF36-0KH0 include auxiliary contacts and a shunt trip?","answer":"Yes, it ships with 2 auxiliary switches plus 1 trip alarm switch (HQ) and a factory-fitted shunt trip (STL). No separate accessories to order."},{"question":"What is the continuous current rating of 3VA1163-4EF36-0KH0 at elevated temperatures?","answer":"63 A through 50 °C, then derates to 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C."},{"question":"Where can I buy 3VA1163-4EF36-0KH0 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1163-4EF36-0KH0","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/3VA1163-4EF36-0KH0 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}}