{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1163-4EF32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1163-4EF32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1163-4EF32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1163-4EF32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1163-4EF32-0CA0, molded case circuit breaker, 3-pole, 63 A (40 °C), 121 kA at 240 V, undervoltage release, line protection.","salesMarkdown":"The 121 kA interrupting capacity at 240 V means it can safely clear a bolted fault on a high-capacity transformer secondary — think a 300 kVA 208Y/120 V transformer — without the arc flash escalating upstream. This MCCB delivers 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. Above that it begins to taper: 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C (–). If the panel ambient runs at 55 °C, you lose 1 A; at 70 °C you lose 5 A. For a 60 A continuous load in a hot enclosure, this breaker still holds — but you are at the edge of the curve. ## Undervoltage release and auxiliary options The UVR is a separate auxiliary release, not the main trip unit. The trip indicator is absent, so you will not get a visual flag on the front; you rely on the handle position. The 76.2 mm width (3 inches) is standard for a 3-pole 63 A frame; it occupies three 25 mm module spaces on a DIN rail or a panel-mount cutout. The supplied basic switch order code is 3VA11634EF320AA0 — that is the internal switching mechanism; you order the full breaker as 3VA1163-4EF32-0CA0.","metaTitle":"Siemens 3VA1163-4EF32-0CA0 SENTRON MCCB, 63 A, 121 kA at 240","metaDescription":"Siemens SENTRON 3VA1163-4EF32-0CA0 molded case circuit breaker, 3-pole, 63 A rated at 40°C, 121 kA breaking capacity at 240 V. 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":"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":"3VA11634EF320AA0","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":"3VA9608-0BB24","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":"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=251494&mlfb=3VA1163-4EF32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1163-4EF32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1163-4EF32-0CA0?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels — no automated price or lead-time figure is published here."},{"question":"What is 3VA1163-4EF32-0CA0's listed depth?","answer":"The body depth is 70 mm. Add clearance for handle throw and wiring — typically 100 mm minimum in a panel."},{"question":"What is 3VA1163-4EF32-0CA0's listed width?","answer":"The width is 76.2 mm, which is 3 inches or three 25 mm DIN-rail module spaces."},{"question":"Will 3VA1163-4EF32-0CA0 drop into a panel specified around 3VA1110-5ED36-0AC0 without rewiring?","answer":"No — the 3VA1110-5ED36-0AC0 is a different frame size and rating. The 3VA1163-4EF32-0CA0 is a 63 A, 3-pole MCCB with an undervoltage release; the 3VA1110 is a 100 A frame. Panel cutouts, bus connections, and terminal arrangements differ. Rewiring and possibly a new mounting adapter are required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1163-4EF32-0CA0","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/3VA1163-4EF32-0CA0 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}}