{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF36-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF36-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3EF36-0AE0, molded case circuit breaker, 3-pole, 40 A continuous, TM240 thermal-magnetic release, 75.6 kA interrupting at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA1140-3EF36-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated for 40 A continuous at 40 °C, with a TM240 thermal-magnetic release designed for line protection. It carries an interrupting capacity of 75.6 kA at 240 V, stepping down to 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500 V or 690 V — that coverage matters when you're coordinating downstream faults and need to know the breaker can clear a bolted fault at the service voltage without welding contacts. The 40 A rating holds flat across ambient temperatures from 40 °C to 50 °C, then derates only to 39 A at 55-60 °C and 38 A at 65 °C, finally 37 A at 70 °C. That thermal stability means you don't lose headroom in a warm enclosure — the breaker stays at full rating through most panel conditions. The breaker is 130 mm high, 76.2 mm wide, and 70 mm deep — a 3-pole footprint that mounts on a DIN rail or panel-mount plate. This is a line-protection MCCB for main or branch feeder duty in a SENTRON distribution board or standalone enclosure. The 3-pole configuration suits three-phase loads — panel feeds, motor control centers, or sub-distribution.","metaTitle":"Siemens 3VA1140-3EF36-0AE0 SENTRON MCCB, 40 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1140-3EF36-0AE0 molded case circuit breaker, 40 A, 3-pole. Interrupting capacity 75.6 kA at 240 V, 52.5 kA at 415 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":"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":"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]":"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":"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","Of The Supplied Basic Switch":"3VA11403EF360AA0","Design Of The Auxiliary Switch":"4 auxiliary switches HQ","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":"4","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"N","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","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=208291&mlfb=3VA1140-3EF36-0AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0AE0/alternatives.json"},"ai":{"faq":[{"question":"What are the interrupting capacity ratings for this MCCB?","answer":"75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V."},{"question":"Will 3VA1140-3EF36-0AE0 drop into a panel specified around 3VA1110-5ED36-0AC0 without rewiring?","answer":"Both are 3-pole SENTRON MCCBs in the 3VA family, but the 3VA1110-5ED36-0AC0 is a different frame size and rating. The 3VA1140 carries a 40 A TM240 release vs the 3VA1110's lower rating, and physical dimensions differ — 130 mm height × 76.2 mm width × 70 mm depth for this unit. You'd need to verify mounting hole pattern and bus-bar spacing before assuming a drop-in swap."},{"question":"How do I get current pricing and availability for 3VA1140-3EF36-0AE0?","answer":"This part is 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 binding quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0AE0","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/3VA1140-3EF36-0AE0 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}}