{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-5EF32-0JH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-5EF32-0JH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-5EF32-0JH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EF32-0JH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-5EF32-0JH0, 3-pole molded case circuit breaker, 40 A rated continuous current, 187 kA breaking capacity at 240 V, line protection version with TM240 thermal-magnetic release.","salesMarkdown":"## Breaking capacity and thermal derating The Siemens SENTRON 3VA1140-5EF32-0JH0 is a 3-pole molded case circuit breaker (MCCB) rated for 40 A continuous current at 40 °C, with a TM240 thermal-magnetic overcurrent release. Its breaking capacity is 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — these are the fault currents it can safely interrupt at each voltage level, which determines the available fault current the upstream transformer or generator can deliver without exceeding the breaker's rating. The thermal derating curve holds at 40 A through 50 °C, then steps down to 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. The 3VA1140-5EF32-0JH0 measures 130 mm high, 76.2 mm wide, and 70 mm deep. The front face carries an IP40 protection rating — splash protection on the front only; the back and sides rely on the panel enclosure. The integrated auxiliary trip order code is 3VA9688-0BL32 — order that separately if the shunt trip needs replacement. No undervoltage release, no communication function, no phase failure detection, and no ground fault monitoring are fitted on this variant.","metaTitle":"Siemens 3VA1140-5EF32-0JH0 SENTRON MCCB, 40 A, 3-Pole, 187 k","metaDescription":"Siemens SENTRON 3VA1140-5EF32-0JH0 molded case circuit breaker, 40 A rated, 3-pole, 187 kA breaking capacity at 240 V. Current production. Available to order. Request quote.","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","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 690 V":"17 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"38.4 A","at 60 °C":"37.6 A","at 65 °C":"36.8 A","at 70 °C":"36 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL32","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"40 A","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"200 A","Adjustable response value current / lr min.":"28 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=158515&mlfb=3VA1140-5EF32-0JH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EF32-0JH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1140-5EF32-0JH0 at 415 V?","answer":"121 kA at 415 V. The breaker also carries 187 kA at 240 V, 75.6 kA at 440 V, and 17 kA at 690 V."},{"question":"Where can I buy 3VA1140-5EF32-0JH0?","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 firm price and delivery window."},{"question":"What is the thermal derating for 3VA1140-5EF32-0JH0 above 50 °C?","answer":"The breaker is rated 40 A continuous through 50 °C. At 55 °C it derates to 38.4 A, at 60 °C to 37.6 A, at 65 °C to 36.8 A, and at 70 °C to 36 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-5EF32-0JH0","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/3VA1140-5EF32-0JH0 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}}