{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-4ED36-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-4ED36-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-4ED36-0CC0, molded case circuit breaker, 3-pole, 50 A, line protection, breaking capacity 121 kA at 240 V AC, 75.6 kA at 415 V AC, undervoltage release, 2 auxiliary switches HQ.","salesMarkdown":"Breaking capacity hits 121 kA at 240 V AC and 75.6 kA at 415 V AC — that SCCR headroom means it clears high-fault bolted faults without cascading upstream, a real advantage when the transformer is close and the available fault current is stiff. At 440 V it still holds 52.5 kA, and at 500 V and 690 V it derates to 11.9 kA, so verify the system voltage against the curve before committing the BOM line. Current rating holds flat at 50 A from 40 °C through 50 °C, then steps down: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. Width is 76.2 mm (3 in), depth 70 mm (2.76 in), height 130 mm (5.12 in) — a compact 3-pole footprint that drops into standard SENTRON mounting bases without re-drilling the gland plate. ## Integration notes The 3-pole design with UVR means the undervoltage coil must see rated voltage before the breaker will close — verify the control circuit supplies 24 V DC (or the UVR rating) and that the free-wheel diode polarity is correct if the coil is driven by a PLC output. Insulation voltage rated 800 V, operating range -25 °C to 70 °C, storage -40 °C to 80 °C. The auxiliary switches are HQ type (high-quantity signal contacts) — rated for the same voltage class as the main poles, so they can drive panel indication or feed a PLC input directly.","metaTitle":"Siemens 3VA1050-4ED36-0CC0 SENTRON MCCB, 50 A, 3-Pole, 121 k","metaDescription":"Siemens 3VA1050-4ED36-0CC0 SENTRON molded case circuit breaker, 50 A, 3-pole, breaking capacity 121 kA at 240 V. Active production. Quoted to order against RFQ.","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":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"17.1 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":"undervoltage release (UVR)","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":"3VA9608-0BB24","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=53228&mlfb=3VA1050-4ED36-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0CC0/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3VA1050-4ED36-0CC0 and how is it quoted for volume purchases?","answer":"This part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"What is the breaking capacity of 3VA1050-4ED36-0CC0 at 415 V?","answer":"75.6 kA at 415 V AC, which covers most industrial distribution panels fed from a 500 kVA transformer."},{"question":"Will 3VA1050-4ED36-0CC0 drop into a panel specified around 3VA1110-5ED36-0AC0 without rewiring?","answer":"Both are SENTRON 3-pole MCCBs with the same mounting footprint (76.2 mm wide, 70 mm deep, 130 mm high), so the mechanical fit is identical. The difference is the current rating — the 3VA1110 variant is a 100 A frame, so verify the load and conductor sizing before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0CC0","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/3VA1050-4ED36-0CC0 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}}