{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-4EF36-0JH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-4EF36-0JH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-4EF36-0JH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF36-0JH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-4EF36-0JH0, molded case circuit breaker, 3-pole, 50 A (40-50 °C), breaking capacity 121 kA at 240 VAC, 75.6 kA at 415 VAC, 70 x 76.2 x 130 mm.","salesMarkdown":"It carries a 50 A continuous rating across the 40 °C to 50 °C ambient band, with a slight derating curve above that: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. Breaking capacity is the headline spec here. At 240 VAC this MCCB interrupts 121 kA; at 415 VAC it handles 75.6 kA; at 440 VAC it's 52.5 kA; and at 500 V and 690 V it holds at 11.9 kA. That 121 kA figure at 240 V puts it squarely in the high-fault category for North American 120/240 V split-phase or 240 V delta services — useful downstream of a large transformer or near a utility service entrance where available fault current is high. ## Auxiliary configuration and panel integration The trip alarm switch signals the breaker's thermal-magnetic trip state back to a control system — useful for remote fault annunciation without adding a separate monitor relay. The 70 mm depth means it clears shallow enclosures; verify the enclosure depth plus wiring bending radius before committing the layout. ## Environmental and operating limits The storage minimum of -40 °C matters for cold warehouse or unheated site storage before installation. The operating maximum of 70 °C aligns with the derating curve top end — at 70 °C the breaker is still rated for 45 A, so it can run in a hot panel without immediate nuisance tripping as long as the load is below that derated value.","metaTitle":"Siemens SENTRON 3VA1150-4EF36-0JH0 MCCB, 50 A, 121 kA at 240","metaDescription":"Siemens SENTRON 3VA1150-4EF36-0JH0 molded case circuit breaker, 3-pole, 50 A rated at 40-50 °C, 121 kA breaking capacity at 240 VAC. Active 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":"76.2 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 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]":"3 in","Height [In]":"5.12 in","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"Yes","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","Of The Supplied Basic Switch":"3VA11504EF360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"shunt trip (STL)","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","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL32","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"S","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","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=192792&mlfb=3VA1150-4EF36-0JH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF36-0JH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1150-4EF36-0JH0 and what is the lead time?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time; no stock count or lead-time number is published here."},{"question":"What is the breaking capacity of 3VA1150-4EF36-0JH0 at different voltages?","answer":"At 240 VAC it interrupts 121 kA; at 415 VAC it handles 75.6 kA; at 440 VAC it's 52.5 kA; at 500 V and 690 V it holds at 11.9 kA."},{"question":"Does 3VA1150-4EF36-0JH0 include a shunt trip and auxiliary switches?","answer":"Yes, it ships with a shunt trip (STL) release and an auxiliary switch block configured as 2 auxiliary switches plus 1 trip alarm switch (HQ)."},{"question":"What compliance documentation is available for this part?","answer":"As a Siemens SENTRON product, it carries the manufacturer's standard declarations. Specific certifications (UL, IEC, RoHS, REACH) are documented in the official datasheet and declaration of conformity available from Siemens."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-4EF36-0JH0","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/3VA1150-4EF36-0JH0 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}}