{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-4GD42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-4GD42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-4GD42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4GD42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-4GD42-0AA0, molded case circuit breaker, 4-pole, 50 A rated, TM210 thermal-magnetic release, breaking capacity 121 kA at 240 V AC, IP40 front.","salesMarkdown":"## Breaking capacity — what the voltage columns mean for panel coordination The 3VA1150-4GD42-0AA0: This breaker's interrupting capacity drops as system voltage climbs — that's normal for any MCCB, but the numbers here matter for selectivity studies. At 240 V it clears 121 kA; at 415 V it's 75.6 kA; at 440 V it's 52.5 kA; at 500 V and 690 V it's 11.9 kA. The 50 A continuous rating holds across 40–50 °C ambient; above that it derates smoothly to 45 A at 70 °C. The 3VA1150-4GD42-0AA0 measures 130 mm high, 101.6 mm wide, and 70 mm deep — a standard 4-pole MCCB footprint for DIN-rail or screw-mount panel installation. The TM210 release is fixed-trip, not adjustable, so coordination settings are baked into the breaker selection — no dials to mis-set during commissioning.","metaTitle":"Siemens 3VA1150-4GD42-0AA0 SENTRON MCCB, 50A, 4-Pole, 121kA","metaDescription":"Siemens SENTRON 3VA1150-4GD42-0AA0 molded case circuit breaker, 50A rated, 4-pole, TM210 release. Breaking capacity 121kA at 240V. Active production, quoted to order. Available for","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","Height":"130 mm","Maximum":"50 A","Minimum":"50 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]":"4 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","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","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":"100%","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":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"S","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=430353&mlfb=3VA1150-4GD42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4GD42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1150-4GD42-0AA0 at 415 V?","answer":"At 415 V AC the interrupting rating is 75.6 kA."},{"question":"Where can I buy 3VA1150-4GD42-0AA0 and how is it quoted?","answer":"This part is 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 commercial offer."},{"question":"Will 3VA1150-4GD42-0AA0 drop into a panel specified around 3VA1110-5ED32-0AA0 without rewiring?","answer":"Both are 4-pole SENTRON MCCBs in the same 3VA frame family, so the mounting footprint and bus-bar spacing are identical. The 3VA1150-4GD42-0AA0 is rated 50 A versus the lower-current 3VA1110 variants — verify that the panel's bus and cable terminations are sized for 50 A before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-4GD42-0AA0","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/3VA1150-4GD42-0AA0 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}}