{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-4ED36-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-4ED36-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-4ED36-0HC0, 3-pole molded case circuit breaker, 50 A rated current, 121 kA interrupting capacity at 240 V, line protection design with shunt trip.","salesMarkdown":"## MCCB for line protection — 50 A frame, high interrupting capacity Rated 50 A continuously at 40 °C, it holds that rating through 50 °C and derates to 45 A at 70 °C — useful when the breaker shares a warm enclosure with other heat sources. The interrupting capacity is the headline: 121 kA at 240 V, 75.6 kA at 415 V, and still 11.9 kA at 690 V, so it handles high-fault utility feeds or transformer secondaries without cascading upstream. ## Sizing and thermal behaviour in the panel The frame measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits most Siemens SENTRON distribution boards and third-party enclosures with DIN-rail or screw-mount adapters. Maximum power loss is 14.6 W, which matters for thermal calculations in sealed enclosures. The shunt trip release (STL) is built in, allowing remote tripping from a safety circuit or emergency-stop button.","metaTitle":"Siemens 3VA1050-4ED36-0HC0 SENTRON MCCB, 50 A, 121 kA at 240","metaDescription":"Siemens SENTRON 3VA1050-4ED36-0HC0 molded case circuit breaker, 3-pole, 50 A rated, 121 kA interrupting at 240 V. Current lifecycle. Sourced to order. Request quote for pricing and","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","Maximum":"0 A","Minimum":"0 A","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 500 V":"11.9 kA","at 690 V":"11.9 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]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","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":"3VA10504ED360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches 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","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":"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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"S","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","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=34429&mlfb=3VA1050-4ED36-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0HC0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA1050-4ED36-0HC0 at 240 V?","answer":"121 kA at 240 V, which drops to 75.6 kA at 415 V and 11.9 kA at 690 V. The 240 V figure covers most North American panelboard applications with high available fault current."},{"question":"Where can I buy 3VA1050-4ED36-0HC0 and get current pricing?","answer":"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 price and lead time."},{"question":"Does 3VA1050-4ED36-0HC0 include a shunt trip?","answer":"Yes, the design includes a shunt trip release (STL) for remote tripping from a safety circuit or emergency-stop button."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0HC0","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/3VA1050-4ED36-0HC0 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}}