{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1063-3ED42-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1063-3ED42-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1063-3ED42-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1063-3ED42-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA1063-3ED42-0CH0, 4-pole, 63 A at 40 °C, interrupting 75.6 kA at 240 V, line protection design with undervoltage release.","salesMarkdown":"The Siemens 3VA1063-3ED42-0CH0 is a SENTRON molded case circuit breaker, 4-pole, rated 63 A continuous at 40 °C ambient, and it holds that full 63 A all the way up to 50 °C without derating — at 55 °C it's still 62 A, at 65 °C it's 60 A, so you've got headroom in a warm panel. The interrupting ratings are what decide fit: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 500 V and 690 V. That tells you it's built for high-fault commercial and industrial mains distribution, not just a branch feeder. ## Sizing and selectivity — the numbers that matter for coordination This MCCB carries a line protection design, meaning it's intended for cable and busbar protection, not motor starting duty. The 4-pole construction with undervoltage release and a built-in trip alarm switch plus two auxiliary switches means you can wire it into a safety circuit that drops the breaker on loss of control voltage — common on emergency-stop chains and undervoltage coil monitoring. The 3VA1063-3ED42-0CH0 measures 130 mm height, 101.6 mm width, and 70 mm depth. That 70 mm depth is shallow enough for most 200 mm deep enclosures, and the 101.6 mm width (4 inches) is the standard footprint for a 4-pole SENTRON 3VA frame — it drops into the same mounting hole pattern as other 3VA 4-pole breakers of this frame size. No rewiring for a different footprint if you're swapping within the 3VA family, but verify the lug kit matches your cable size.","metaTitle":"Siemens 3VA1063-3ED42-0CH0 SENTRON MCCB, 63 A, 4-Pole, 75.6","metaDescription":"Siemens 3VA1063-3ED42-0CH0 SENTRON molded case circuit breaker, 63 A at 40 °C, 4-pole, interrupting 75.6 kA at 240 V. Line protection with undervoltage release. Current lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 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":"7.5 kA","at 690 V":"7.5 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]":"4 in","Height [In]":"5.12 in","Trip Indicator":"Yes","Number Of Poles":"4","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":"3VA10633ED420AA0","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":"TM210","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","design of the N-conductor protection":"without","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":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","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":"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=446639&mlfb=3VA1063-3ED42-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1063-3ED42-0CH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1063-3ED42-0CH0?","answer":"Submit an RFQ — this part is sourced and quoted to order through independent distribution, with availability and current pricing confirmed at quote time."},{"question":"What are the interrupting ratings at different voltages?","answer":"75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 500 V and 690 V."},{"question":"What is the continuous current rating and how does it derate with temperature?","answer":"Rated 63 A continuous at 40 °C, holds 63 A through 50 °C, then derates to 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C (–)."},{"question":"Does this breaker include an undervoltage release?","answer":"Yes, it comes with an undervoltage release (UVR) as the auxiliary release, plus two auxiliary switches and one trip alarm switch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1063-3ED42-0CH0","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/3VA1063-3ED42-0CH0 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}}