{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-2ED42-0JH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-2ED42-0JH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-2ED42-0JH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-2ED42-0JH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-2ED42-0JH0, 4-pole molded case circuit breaker, 50 A rated continuous current, 52.5 kA breaking capacity at 240 V, TM210 thermal-magnetic release, shunt trip, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA1050-2ED42-0JH0 is a 4-pole molded case circuit breaker rated for 50 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release and an integrated shunt trip (STL). Breaking capacity hits 52.5 kA at 240 V, 32 kA at 415 V, and 13.6 kA at 440 V — enough headroom for most industrial distribution panels where fault current is high on the secondary side of a 500 kVA transformer. That keeps the part simple and reliable for straight line protection, but if you need selective coordination curves or remote trip indication beyond the built-in alarm switch, this isn't the variant. Auxiliary contacts come as 2 form-C switches plus a separate trip alarm switch (HQ), so you get status feedback and a dedicated fault signal without adding an external relay block. The shunt trip (STL) is a factory-integrated option, not a field-add-on kit. If your panel design calls for undervoltage release instead, this order code won't do it — the 3VA1050-2ED42-0JH0 has no undervoltage release fitted. Footprint is 101.6 mm wide by 130 mm tall by 70 mm deep — standard SENTRON 3VA frame size for a 4-pole 50 A breaker. If you're swapping in a panel originally built around the 3VA1010-2ED42-0AE0, check the width — the 101.6 mm footprint is the same across the 3VA10xx frame, so it should drop in without busbar rework as long as the mounting holes align. ## Temperature derating Above that it derates: 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.","metaTitle":"Siemens 3VA1050-2ED42-0JH0 SENTRON MCCB, 50 A, 52.5 kA","metaDescription":"Siemens SENTRON 3VA1050-2ED42-0JH0 molded case circuit breaker, 50 A rated, 52.5 kA at 240 V. TM210 release, shunt trip. Current production. Sourced 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","at 240 V":"52.5 kA","at 415 V":"32 kA","at 440 V":"13.6 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":"48 A","at 60 °C":"47 A","at 65 °C":"46 A","at 70 °C":"45 A","Trip indicator":"Yes","Number of poles":"4","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"50 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL32","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"600 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"No","Adjustable response value current / Ir max.":"50 A","Adjustable response value current / li max.":"500 A","Adjustable response value current / li min.":"500 A","Adjustable response value current / lr min.":"50 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"B","Max. rated operational current of the frame size":"100 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=269891&mlfb=3VA1050-2ED42-0JH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-2ED42-0JH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB?","answer":"52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V. The 415 V figure is the one most commonly used for European 400 V distribution panels."},{"question":"Does this breaker have a shunt trip or undervoltage release?","answer":"It has a factory-integrated shunt trip (STL). There is no undervoltage release fitted on this order code."},{"question":"Where can I buy 3VA1050-2ED42-0JH0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time figure is published here."},{"question":"Will 3VA1050-2ED42-0JH0 fit in a panel designed for 3VA1010-2ED42-0AE0?","answer":"The 101.6 mm width and 130 mm height are shared across the 3VA10xx frame, so mechanical fit should be identical. Verify the busbar connection pattern and the shunt trip wiring — the 3VA1010-2ED42-0AE0 may have a different auxiliary contact configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-2ED42-0JH0","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/3VA1050-2ED42-0JH0 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}}