{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-5EE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-5EE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-5EE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5EE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-5EE42-0AA0, molded case circuit breaker, 4-pole, 50 A at 40 °C, TM220 overcurrent release, 187 kA at 240 V.","salesMarkdown":"## What this 50 A MCCB delivers on a mill floor Four poles give you the isolation and overcurrent protection a three-phase line needs plus a switched neutral — common on European-sourced panels where a solid neutral isn't assumed. The TM220 release gives a fixed thermal pickup and magnetic trip that's factory-set; no field-adjustable dials, so what you order is what protects the feeder. At 40 °C the breaker carries a full 50 A. That holds steady through 50 °C; at 55 °C it derates to 49 A, and at 70 °C it's 45 A. If the panel sits near a dryer section or a hot motor control center, the 45 A floor at 70 °C still gives you headroom for a 40 A continuous load. The 14.6 W maximum power loss means the heat it dumps into the enclosure is modest — a standard steel enclosure with passive ventilation handles it, but if you're stacking several breakers in a tight row, check the cumulative dissipation against the enclosure's rating. ## Selectivity and coordination For selectivity studies, the TM220's magnetic trip is fixed, so you coordinate by choosing a downstream breaker with a lower magnetic threshold. The 800 V rated insulation voltage gives you the dielectric margin for 690 V systems, but the actual breaking capacity at 690 V drops to 17 kA — that's still adequate for most 690 V motor branch circuits, not for a main tie.","metaTitle":"Siemens 3VA1150-5EE42-0AA0 SENTRON MCCB, 50A, 4-Pole, 187kA","metaDescription":"Siemens SENTRON 3VA1150-5EE42-0AA0 molded case circuit breaker, 50A rated at 40°C, 4-pole, TM220 release. Breaking capacity 187kA at 240V. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 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":"50 A","at 45 °C":"50 A","at 50 °C":"50 A","at 55 °C":"49 A","at 60 °C":"48 A","at 65 °C":"46 A","at 70 °C":"45 A","Depth [In]":"2.76 in","Width [In]":"4 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"4","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":"14.6 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 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","design of the N-conductor protection":"without","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 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":"0","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":"https://cdn.aoctrl.com/877cccd46fbb90b7a4a62ee3bb749981.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=321889&mlfb=3VA1150-5EE42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5EE42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1150-5EE42-0AA0 at different voltages?","answer":"At 240 V it 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."},{"question":"Where can I buy 3VA1150-5EE42-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"How does 3VA1150-5EE42-0AA0 compare to 3VA1110-5ED32-0AA0 for panel drop-in?","answer":"Both are 4-pole SENTRON MCCBs with the same 70 mm depth and 101.6 mm width, so the physical footprint is identical. The 3VA1150-5EE42-0AA0 carries a 50 A rating with TM220 release, while the 3VA1110-5ED32-0AA0 is a lower-current variant. If the panel was wired for the 3VA1110, the 3VA1150 will mount in the same space without rewiring the bus bars, but the thermal-magnetic trip curve differs — verify the coordination study if replacing one for the other."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-5EE42-0AA0","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/3VA1150-5EE42-0AA0 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}}