{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-2ED42-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-2ED42-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-2ED42-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-2ED42-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-2ED42-0DH0, molded case circuit breaker, 4-pole, 50 A (40 °C), breaking capacity 52.5 kA at 240 V, TM210 release, undervoltage release, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA1050-2ED42-0DH0 is a 4-pole molded case circuit breaker (MCCB) rated for 50 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release and an integrated undervoltage release (UVR). It's a line-protection device — meaning it sits between the transformer and the distribution bus, not a motor-protection breaker with phase-failure detection. The 52.5 kA interrupting capacity at 240 V gives you headroom for high-fault panels; at 415 V it still holds 32 kA, which covers most industrial service-entrance and feeder applications. The IP40 front rating means it's fine inside a dry enclosure but not washdown-rated. The 50 A rating holds flat from 40 °C to 50 °C, then derates to 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C — so if your panel ambient runs above 50 °C, you lose 1 A per 5 °C step. ## Panel integration Dimensions: 130 mm height, 101.6 mm width, 70 mm depth — that's a standard 4-pole MCCB footprint, so it drops into existing SENTRON or competitive cutouts without panel rework. The IP40 front means the breaker face is protected against solid objects over 1 mm, but the enclosure itself must handle the rest of the IP rating. The spring-cage terminals accept 0.2–2.5 mm² solid or ferruled stranded wire; strip length 8 mm.","metaTitle":"Siemens SENTRON 3VA1050-2ED42-0DH0 MCCB, 50 A, 4-Pole, 52.5","metaDescription":"Siemens SENTRON 3VA1050-2ED42-0DH0 molded case circuit breaker, 50 A rated at 40 °C, 4-pole, 52.5 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":"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":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB25","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=375151&mlfb=3VA1050-2ED42-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-2ED42-0DH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1050-2ED42-0DH0?","answer":"Submit an RFQ through this listing; availability and current pricing are confirmed at quote time through independent distribution."},{"question":"What is the closest functional second-source to 3VA1050-2ED42-0DH0?","answer":"The 3VA1010-2ED42-0AE0 is a lower-current sibling (100 A frame vs 50 A frame) but shares the same 4-pole, TM210 release, and UVR configuration — it will not drop into the same panel without checking the frame size and terminal spacing."},{"question":"What compliance documentation does this brand provide for 3VA1050-2ED42-0DH0?","answer":"Siemens provides RoHS, REACH, UL, and IEC declarations for the SENTRON 3VA series; specific certificates are available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-2ED42-0DH0","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/3VA1050-2ED42-0DH0 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}}