{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-4GD42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-4GD42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-4GD42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4GD42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-4GD42-0AA0, molded case circuit breaker, 40 A, 4-pole, TM210 thermal-magnetic trip, line protection, IP40 front.","salesMarkdown":"The 40 A rating holds up to 55 °C ambient before the first derate step — at 65 °C it's still good for 38 A, so you don't lose a lot of headroom in a warm enclosure. This MCCB delivers 121 kA interrupting capacity at 240 V, dropping to 75.6 kA at 415 V and 52.5 kA at 440 V. Those numbers mean it can sit upstream of a high-fault panel without cascading — useful when you're coordinating with downstream branch breakers and need the main to hold. The case measures 130 mm tall, 101.6 mm wide, and 70 mm deep — a standard footprint for a 4-pole MCCB in this class. It mounts to a backplate or DIN rail in a distribution board.","metaTitle":"Siemens 3VA1140-4GD42-0AA0 SENTRON MCCB, 40 A, 4-Pole, TM210","metaDescription":"Siemens 3VA1140-4GD42-0AA0 SENTRON molded case circuit breaker. 40 A rated, 4-pole, TM210 trip unit. Breaking capacity 121 kA at 240 V. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","Height":"130 mm","Maximum":"40 A","Minimum":"40 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":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"39 A","at 60 °C":"39 A","at 65 °C":"38 A","at 70 °C":"37 A","Depth [In]":"2.76 in","Width [In]":"4 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"4","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":"10.8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","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":"100%","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":"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":"https://cdn.aoctrl.com/902fc7527cf6a5f99607c4ffb6d97f52.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=104195&mlfb=3VA1140-4GD42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4GD42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the 3VA1140-4GD42-0AA0?","answer":"It's a 40 A, 4-pole MCCB with a TM210 thermal-magnetic trip unit. Breaking capacity is 121 kA at 240 V, 75.6 kA at 415 V, and 52.5 kA at 440 V. Rated insulation voltage is 800 V."},{"question":"Where can I buy the 3VA1140-4GD42-0AA0?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation is available for this MCCB?","answer":"As a Siemens SENTRON product, it carries the usual declarations and certifications for the European and North American markets. Specific documentation (RoHS, REACH, UL, IEC) can be provided as part of the RFQ process."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-4GD42-0AA0","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/3VA1140-4GD42-0AA0 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}}