{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-5GE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-5GE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-5GE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5GE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-5GE42-0AA0, molded case circuit breaker, 4-pole, 50 A, TM220 thermal-magnetic trip, interrupting 187 kA at 240 V.","salesMarkdown":"## Line protection MCCB, 50 A frame, 4-pole, TM220 trip The Siemens SENTRON 3VA1150-5GE42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous 50 A at 40 °C and derating to 45 A at 70 °C. The TM220 thermal-magnetic trip unit handles overload and short-circuit response without external control power — it's self-powered, so it clears faults even if the control voltage drops. Interrupting capacity is 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V, which covers most industrial distribution panels where high fault current is expected downstream of a transformer. ## Panel fit and thermal considerations Dimensions are 130 mm height, 101.6 mm width, 70 mm depth — a 4-pole frame that occupies roughly four module spaces on a DIN rail or panel-mount base. The thermal derating curve is flat from 40 °C to 50 °C (50 A), then drops to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. Maximum power loss is 14.6 W at rated current — modest for a 50 A frame, but in a sealed cabinet with multiple breakers the cumulative heat matters.","metaTitle":"Siemens 3VA1150-5GE42-0AA0 SENTRON MCCB, 50 A, 4-Pole, TM220","metaDescription":"Siemens SENTRON 3VA1150-5GE42-0AA0 molded case circuit breaker, 50 A, 4-pole, TM220 trip unit, 187 kA at 240 V. 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":"50 A","Minimum":"50 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 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":"TM220","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":"M","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":"https://cdn.aoctrl.com/2e6941448c76d7e178c975e08a0a5ddf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=89972&mlfb=3VA1150-5GE42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5GE42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1150-5GE42-0AA0 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm current availability and pricing."},{"question":"What is the interrupting capacity of 3VA1150-5GE42-0AA0 at different voltages?","answer":"187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V."},{"question":"What trip unit does 3VA1150-5GE42-0AA0 use?","answer":"TM220 thermal-magnetic overcurrent release, designed for line protection. No undervoltage release or ground-fault monitoring on this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-5GE42-0AA0","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/3VA1150-5GE42-0AA0 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}}