{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-5EF32-0AG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-5EF32-0AG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-5EF32-0AG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EF32-0AG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-5EF32-0AG0, molded case circuit breaker, 3-pole, 40 A, TM240 thermal-magnetic release, interrupting capacity 187 kA at 240 VAC, 121 kA at 415 VAC.","salesMarkdown":"## Siemens SENTRON 3VA1140-5EF32-0AG0 — 40 A MCCB with TM240 Release The Siemens SENTRON 3VA1140-5EF32-0AG0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, with a continuous current of 40 A at 40 °C and a TM240 thermal-magnetic overcurrent release. Its interrupting capacity reaches 187 kA at 240 VAC, 121 kA at 415 VAC, and 75.6 kA at 440 VAC — figures that govern selectivity and SCCR coordination in high-fault panels. ## Interrupting Capacity and Selectivity Coordination At 240 V the breaker clears 187 kA; at 415 V it clears 121 kA; at 440 V it clears 75.6 kA; at 500 V and 690 V it clears 17 kA. These are the values an electrical engineer uses to verify upstream breaker coordination and downstream SCCR compliance per IEC 60947-2. The TM240 release provides thermal-magnetic protection with a fixed thermal pickup at 40 A and a magnetic trip threshold set at 240 A (6× In). At 55 °C it derates to 39 A, at 65 °C to 38 A, and at 70 °C to 37 A. Maximum power loss is 10.8 W. These derating curves matter when the breaker is mounted in a sealed enclosure or alongside heat-generating components. Width is 76.2 mm (3 in), height 130 mm (5.12 in), depth 70 mm (2.76 in). The 3-pole footprint matches the standard SENTRON 3VA mounting pattern; it installs on a DIN rail or via screw-mount to a backplate. The auxiliary switch configuration (1 aux + 1 trip alarm, HP) is factory-integrated — no separate add-on module required.","metaTitle":"Siemens 3VA1140-5EF32-0AG0 SENTRON MCCB, 3-Pole, 40 A, TM240","metaDescription":"Siemens SENTRON 3VA1140-5EF32-0AG0 molded case circuit breaker, 3-pole, 40 A, TM240 release, interrupting capacity 187 kA at 240 VAC. 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":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 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":"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":"10.8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11405EF320AA0","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":"M","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=128698&mlfb=3VA1140-5EF32-0AG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EF32-0AG0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1140-5EF32-0AG0?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is 3VA1140-5EF32-0AG0's interrupting capacity at 415 V?","answer":"121 kA at 415 VAC."},{"question":"What is the continuous current rating of 3VA1140-5EF32-0AG0 at 40 °C?","answer":"40 A at 40 °C ambient."},{"question":"What compliance documentation does this brand provide for 3VA1140-5EF32-0AG0?","answer":"As a Siemens SENTRON MCCB, it carries IEC 60947-2 certification. RoHS and REACH compliance documentation is available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-5EF32-0AG0","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/3VA1140-5EF32-0AG0 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}}