{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-5EF32-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-5EF32-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-5EF32-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EF32-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-5EF32-0HH0, Molded case circuit breaker, 3-pole, 40 A rated continuous current Iu, TM240 thermal-magnetic overcurrent release, line protection version, 187 kA interrupting at 240 V, IP40 front protection.","salesMarkdown":"It's the line protection version — meaning it's built for feeder and main breaker duty in distribution panels, not motor protection with integrated overloads. The interrupting ratings climb to 187 kA at 240 V, drop to 121 kA at 415 V, and settle at 17 kA at 690 V, so it handles high-fault-capacity service entrances and sub-distribution boards where the available fault current is substantial. The thermal derating curve matters if the panel runs hot: it holds 40 A all the way to 50 °C ambient, 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. If your enclosure sits near a drive cabinet or a sunny roof, size the continuous load against the 55 °C column, not the 40 °C sticker. It's a straight thermal-magnetic breaker with a shunt trip for remote opening; if you need UVR or GF protection, that's a different order code in the 3VA family. That 76.2 mm width is a standard 3-pole MCCB footprint — it occupies three 25.4 mm (1-inch) module positions on a DIN rail or a mounting plate. The IP40 front protection means it's sealed against tools and small debris from the front, but the back and sides are open to the enclosure; keep the panel door closed and the gland plate sealed if the environment is dusty or wet. The 3VA family is broadly stocked, but the specific variant with the shunt trip and HQ auxiliary contacts (2 aux + 1 alarm) is a configured order code — not every distributor carries it on the shelf.","metaTitle":"Siemens SENTRON 3VA1140-5EF32-0HH0 MCCB, 40 A, 3-Pole, TM240","metaDescription":"Siemens SENTRON 3VA1140-5EF32-0HH0 molded case circuit breaker, 40 A rated continuous current, 3-pole, TM240 thermal-magnetic release, 187 kA at 240 V interrupting rating. Current","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":"3VA9688-0BL30","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=242998&mlfb=3VA1140-5EF32-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EF32-0HH0/alternatives.json"},"ai":{"faq":[{"question":"What are the interrupting ratings for 3VA1140-5EF32-0HH0 at different voltages?","answer":"At 240 V the interrupting rating is 187 kA, at 415 V it is 121 kA, at 440 V it is 75.6 kA, and at 690 V it is 17 kA."},{"question":"What is the thermal derating for this MCCB above 40 °C?","answer":"It holds 40 A up to 50 °C ambient, then derates 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."},{"question":"What auxiliary contacts and releases come on this breaker?","answer":"It includes 2 auxiliary switches plus 1 trip alarm switch (HQ version) and a shunt trip (STL) auxiliary release. The integrated auxiliary trip order code is 3VA9688-0BL30. No undervoltage release, no ground-fault monitoring, and no communication function are included on this variant."},{"question":"How do I get pricing and availability for 3VA1140-5EF32-0HH0?","answer":"Submit an RFQ for current pricing and lead time. This configured variant (with shunt trip and HQ aux contacts) is available to order through independent distribution; availability and per-unit pricing are confirmed at quote time against your quantity and delivery requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-5EF32-0HH0","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/3VA1140-5EF32-0HH0 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}}