{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5JQ32-0JA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5JQ32-0JA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0JA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0JA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5JQ32-0JA0, Molded case circuit breaker, 3-pole, 400 A, ETU560 electronic trip unit, line protection version, 187 kA at 240 V.","salesMarkdown":"The Siemens 3VA2340-5JQ32-0JA0 is a SENTRON molded case circuit breaker (MCCB) rated for 400 A continuous at 40 °C, 3-pole, with an ETU560 electronic trip unit. That 400 A holds flat through 50 °C — you only start derating at 55 °C (375 A) and 60 °C (350 A), so it handles warm enclosures without oversizing. The 187 kA interrupting rating at 240 V (121 kA at 415/440 V, 75.6 kA at 500 V, 7.5 kA at 690 V) gives you serious fault-current headroom for low-voltage distribution; the 800 V rated insulation voltage (Ui) confirms it's built for 690 V line-to-line systems. ## Line protection, communication-ready — deployment context This is the line protection version, meaning the trip curve and accessories are optimized for feeder and main breaker duty rather than motor or generator protection. It carries a communication function — the ETU560 supports the SENTRON communication module for PROFIBUS or PROFINET, so you can pull trip data and event logs into a PLC or SCADA. The front face is IP40 rated, suitable for enclosed panel mounting; no auxiliary contacts are fitted as standard, but the accessory slot accepts them. Dimensions are 248 mm high, 138 mm wide, 110 mm deep — a standard 3-pole MCCB footprint for a 400 A frame. Maximum power loss is 96 W, worth factoring into your enclosure thermal budget. ## Selectivity and coordination — the ETU560 advantage The ETU560 gives you four adjustable protection functions: L (long-time), S (short-time with I²t on/off), I (instantaneous), and G (ground-fault). The short-time delay lets you achieve full selectivity with downstream breakers up to the short-time withstand rating, which on a 400 A frame is typically high enough to avoid nuisance trips on motor-start inrush.","metaTitle":"Siemens 3VA2340-5JQ32-0JA0 SENTRON MCCB, 400 A, 3-Pole, ETU5","metaDescription":"Siemens 3VA2340-5JQ32-0JA0 SENTRON molded case circuit breaker, 400 A continuous, 3-pole, ETU560 electronic trip, 187 kA at 240 V. Current lifecycle stage, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"7.5 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"375 A","at 60 °C":"350 A","at 65 °C":"325 A","at 70 °C":"300 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"3","Product version":"Line protection","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"96 W","Auxiliary contact version":"Without","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2340-5JQ32-0AA0","Courant permanent assigné Iu":"400 A","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Design Of The Overcurrent Release":"ETU560","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 160%","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL32","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg max.":"400 A","Adjustable response value current / lg min.":"80 A","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"600 A","Neutral conductors / upgradeable/retrofittable":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Max. rated operational current of the frame size":"400 A","Mechanical Service Life (Switching Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c1b3b6c5f6d67465025ac41848ceb75e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=433415&mlfb=3VA2340-5JQ32-0JA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0JA0/alternatives.json"},"ai":{"faq":[{"question":"What trip unit does this MCCB use?","answer":"It uses the ETU560 electronic trip unit with adjustable L, S, I, and G protection — programmable without changing the breaker."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0JA0","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/3VA2340-5JQ32-0JA0 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}}