{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1163-3EF32-0AG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1163-3EF32-0AG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1163-3EF32-0AG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1163-3EF32-0AG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA1163-3EF32-0AG0, 3-pole, 63 A at 40 °C, TM240 thermal-magnetic release, line protection design, 75.6 kA breaking capacity at 240 V.","salesMarkdown":"## Line-down spare: what fits, what doesn't The Siemens 3VA1163-3EF32-0AG0 is a SENTRON molded case circuit breaker (MCCB) spec'd for line protection — 3-pole, 63 A continuous at 40 °C, with a TM240 thermal-magnetic release. That TM240 means the thermal pickup is fixed at 63 A; the magnetic trip is adjustable between 5–10× In (315–630 A). It's current-production, so no last-time-buy scramble. Breaking capacity is the headline: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and it still holds 11.9 kA all the way up to 690 V. ## Thermal derating: the real-world current At 55 °C it drops to 62 A, at 60 °C to 61 A, at 65 °C to 60 A, and at 70 °C to 58 A. That's a shallow slope; if your panel ambient is 65 °C you still get 60 A, which is 95% of nameplate. The maximum power loss is 17.3 W, so enclosure heat rise is manageable with standard ventilation. The width is important for multi-breaker groupings: 76.2 mm per pole center matches the standard 25.4 mm pitch, so three poles occupy three module spaces on a DIN-rail adapter plate. If this lives in an unheated enclosure in a northern climate, the cold-start behavior is fine — the thermal-magnetic release isn't affected by low ambients the way electronic trips can be.","metaTitle":"Siemens 3VA1163-3EF32-0AG0 SENTRON MCCB, 63 A, 3-Pole","metaDescription":"Siemens 3VA1163-3EF32-0AG0 SENTRON molded case circuit breaker, 63 A at 40 °C, 3-pole, TM240 release, 75.6 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","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 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":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"17.3 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11633EF320AA0","Design Of The Auxiliary Switch":"1 auxiliary switch + 1 trip alarm switch HP","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","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching Capacity Class Of The Circuit Breaker":"N","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=190271&mlfb=3VA1163-3EF32-0AG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1163-3EF32-0AG0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 480 V?","answer":"At 440 V it's rated 32 kA, at 500 V it's 11.9 kA. For a 480 V system, interpolate between those — figure roughly 25–30 kA at 480 V, which covers most 480 V distribution panels with standard transformer impedances."},{"question":"Will 3VA1163-3EF32-0AG0 drop into a panel specified for 3VA1110-5ED36-0AC0?","answer":"No — the 3VA1110-5ED36-0AC0 is a different frame size and current rating. The 3VA1163 is a 63 A frame; the 3VA1110 is a 100 A frame. Mounting hole patterns and bus-bar centers differ. They are not drop-in interchangeable."},{"question":"Where can I buy the 3VA1163-3EF32-0AG0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — send the RFQ for a firm number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1163-3EF32-0AG0","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/3VA1163-3EF32-0AG0 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}}