{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-4GF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-4GF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-4GF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4GF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-4GF42-0AA0, 4-pole molded case circuit breaker, 50 A rated current, 121 kA breaking capacity at 240 VAC, TM240 thermal-magnetic release, line protection design.","salesMarkdown":"Four poles, rated 50 A continuous at 40 °C, with a TM240 thermal-magnetic overcurrent release — that means the thermal element handles overloads and the magnetic element clears short-circuits, no undervoltage release or ground-fault monitoring fitted on this variant. The interrupting ratings tell you where it can go: 121 kA at 240 VAC, 75.6 kA at 415 VAC, 52.5 kA at 440 VAC, and 11.9 kA at both 500 VAC and 690 VAC. For a 50 A frame, those are high-interrupting numbers — it clears a fault without upstream coordination issues in most low-voltage switchgear. At 40 °C, 45 °C, and 50 °C the breaker holds 50 A without derating. At 55 °C it drops to 49 A, at 60 °C to 48 A, at 65 °C to 46 A, and at 70 °C to 45 A — a 10 % reduction at the top of the operating range. Ambient operating range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Maximum power loss is 14.6 W. Dimensions are 130 mm height, 101.6 mm width, 70 mm depth. The 70 mm depth is the dimension that matters for enclosure depth clearance — standard 200 mm deep enclosures clear it easily, but shallow gland-plate layouts need checking against that 70 mm plus wiring space.","metaTitle":"Siemens 3VA1150-4GF42-0AA0 SENTRON MCCB, 4-Pole, 50 A, 121 k","metaDescription":"Siemens 3VA1150-4GF42-0AA0 SENTRON molded case circuit breaker, 4-pole, 50 A rated, 121 kA breaking capacity at 240 VAC. Active production. Sourced to order against RFQ.","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":"500 A","Minimum":"250 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","Courant permanent assigné Iu":"50 A","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM240","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%","operating voltage / at AC / rated value":"690 V","Max. rated operational voltage Ue with DC":"600 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"160 A","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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6,5 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fd6165e5741d01be66799a6a3561fe80.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=51603&mlfb=3VA1150-4GF42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4GF42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1150-4GF42-0AA0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ to confirm availability and current pricing at quote time."},{"question":"What is the breaking capacity of 3VA1150-4GF42-0AA0 at 240 V?","answer":"121 kA at 240 VAC, per the spec table. At 415 V it is 75.6 kA, at 440 V it is 52.5 kA, and at 500 V and 690 V it is 11.9 kA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-4GF42-0AA0","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/3VA1150-4GF42-0AA0 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}}