{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1340-5GE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1340-5GE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1340-5GE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1340-5GE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1340-5GE42-0AA0, 4-pole molded case circuit breaker, 400 A at 40 °C, TM220 thermal-magnetic trip, 187 kA at 240 V AC interrupting capacity.","salesMarkdown":"The Siemens SENTRON 3VM1340-5GE42-0AA0 is a 4-pole molded case circuit breaker rated for line protection, carrying 400 A continuously at 40 °C and packing a 187 kA interrupting capacity at 240 V AC. That interrupting number drops to 121 kA at 415 V and 440 V, and 76 kA at 500 V — still well above what most distribution panels upstream of a motor control center will ever see in a fault. The TM220 thermal-magnetic trip unit handles the overcurrent and short-circuit sensing inside the same can; no external relay needed. ## Temperature derating and panel fit At 55 °C the continuous rating drops to 392 A, at 60 °C it's 384 A, and at 70 °C it's 367 A. The 184 mm width and 110 mm depth mean it fits the standard SENTRON mounting footprint — same cutout as other 3VM frames in the 400 A class. The N-conductor protection is designed for 100% rated neutral. The part carries SENTRON branding and is listed as a molded case circuit breaker under Siemens' standard compliance documentation (UL, IEC, RoHS, REACH — confirm specific certs with the factory certificate at order time).","metaTitle":"Siemens 3VM1340-5GE42-0AA0 SENTRON MCCB, 400A, 4-Pole, 187kA","metaDescription":"Siemens SENTRON 3VM1340-5GE42-0AA0 molded case circuit breaker, 400A continuous at 40°C, 4-pole, TM220 trip unit, 187kA interrupting at 240V AC. Current production, sourced to orde","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","Height":"248 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"76 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"392 A","at 60 °C":"384 A","at 65 °C":"376 A","at 70 °C":"367 A","Depth [In]":"4.33 in","Width [In]":"7.24 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"4","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"92 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM220","Design Of Short-Circuit Protection":"For switching capacity values in DC power systems, see the 3VA Molded Case Circuit Breaker Manual; link available under Service & Support in the last chapter","protection class IP / on the front":"IP40","design of the N-conductor protection":"100%","operating voltage / at AC / rated value":"690 V","Max. rated operational voltage Ue with DC":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection","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/81bc365102c563584c96036bbf71977e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569124&mlfb=3VM1340-5GE42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VM1340-5GE42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB?","answer":"At 240 V AC the interrupting capacity is 187 kA. At 415 V and 440 V it is 121 kA, and at 500 V it is 76 kA."},{"question":"Where can I buy 3VM1340-5GE42-0AA0?","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 commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1340-5GE42-0AA0","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/3VM1340-5GE42-0AA0 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}}