{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-2ED42-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-2ED42-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-2ED42-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-2ED42-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-2ED42-0HH0, molded case circuit breaker, 4-pole, 50 A (40 °C), 52.5 kA at 240 V, line protection, with shunt trip and auxiliary switches.","salesMarkdown":"It carries a rated current of 50 A at 40 °C and holds that rating through 50 °C before starting to derate: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. That thermal curve means an enclosure with marginal airflow at 55 °C still gets 49 A of continuous duty. Breaking capacity is 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V. Rated insulation voltage is 800 V, so the breaker can be used on 480/277 V and 600/347 V systems with margin. The 101.6 mm width (4 inches) is the standard 4-pole MCCB footprint for this class — it occupies four 25 mm (1-inch) module spaces on a DIN rail or mounting plate. Depth of 70 mm means it clears most standard enclosure gland plates and backpanels without interference. Maximum power loss is 14.6 W. In a sealed enclosure with multiple breakers ganged together, that heat adds up — account for it in the thermal budget. If your panel ambient is higher than 40 °C, use the derated values: at 60 °C you lose 2 A (48 A), at 70 °C you lose 5 A (45 A). At 690 V the same breaker still interrupts 7.5 kA, which covers most motor branch circuits at that voltage level. Shunt trip (STL) for remote tripping.","metaTitle":"Siemens 3VA1050-2ED42-0HH0 SENTRON MCCB, 50A, 4-Pole, 52.5kA","metaDescription":"Siemens 3VA1050-2ED42-0HH0 SENTRON molded case circuit breaker, 50A rated at 40°C, 4-pole, 52.5kA breaking at 240V. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"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":"52.5 kA","at 415 V":"32 kA","at 440 V":"13.6 kA","at 500 V":"7.5 kA","at 690 V":"7.5 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":"Yes","Number Of Poles":"4","Voltage Trigger":"Yes","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","Of The Supplied Basic Switch":"3VA10502ED420AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM210","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","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL30","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":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"B","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=268751&mlfb=3VA1050-2ED42-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-2ED42-0HH0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3VA1050-2ED42-0HH0?","answer":"The depth is 70 mm (2.76 in), which allows it to fit in standard-depth enclosures without interfering with gland plates or backpanels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-2ED42-0HH0","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/3VA1050-2ED42-0HH0 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}}