{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-3EF36-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-3EF36-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-3EF36-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-3EF36-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-3EF36-0DH0, molded case circuit breaker, 3-pole, 50 A rated current, 75.6 kA interrupting capacity at 240 V AC, line protection design, with undervoltage release and auxiliary switches.","salesMarkdown":"The Siemens 3VA1150-3EF36-0DH0 is a SENTRON molded case circuit breaker (MCCB) rated 50 A continuous at 40 °C through 50 °C, with a 3-pole construction and line-protection trip curve. It carries a full-load interrupting capacity of 75.6 kA at 240 V AC, 52.5 kA at 415 V, and still holds 11.9 kA at 690 V — enough to handle most industrial fault currents without cascading upstream breakers. ## Current rating vs. ambient — no derating until 55 °C At 55 °C it drops to 49 A, at 60 °C to 48 A, and at 70 °C to 45 A. ## Interrupting capacity across voltage levels The interrupting capacity is specified at five voltage points: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. This gives solid selectivity headroom downstream of a larger feeder breaker. That covers remote status monitoring and safety-related undervoltage trip without separate accessory orders. The UVR is wired to a control voltage — if that voltage drops, the breaker opens, which is standard for emergency-stop or power-loss sequences. ## Physical footprint and operating range Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a compact 3-pole MCCB footprint that fits standard panel mounting.","metaTitle":"Siemens 3VA1150-3EF36-0DH0 SENTRON MCCB, 50 A, 3-Pole, 75.6","metaDescription":"Siemens 3VA1150-3EF36-0DH0 SENTRON molded case circuit breaker, 50 A rated, 3-pole, interrupting capacity 75.6 kA at 240 V. Active production. Available to order. RFQ for volume pr","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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 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":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"17.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11503EF360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","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":"3VA9608-0BB25","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":"N","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=464734&mlfb=3VA1150-3EF36-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-3EF36-0DH0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB at 415 V?","answer":"52.5 kA at 415 V AC, with 75.6 kA at 240 V and 11.9 kA at 690 V."},{"question":"What auxiliary switches and releases come built in?","answer":"Two auxiliary switches, one trip alarm switch (HQ), and an undervoltage release (UVR) are factory-installed — no separate accessory order needed."},{"question":"Where can I buy 3VA1150-3EF36-0DH0 and how is it quoted?","answer":"It 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 the latest."},{"question":"Will 3VA1150-3EF36-0DH0 drop into a panel specified for 3VA1110-5EF32-0AM0 without rewiring?","answer":"Both are 3-pole SENTRON MCCBs in the same 3VA family, so the mounting footprint and bus-bar spacing are identical. The 3VA1150-3EF36-0DH0 is a higher-current variant (50 A vs. the 3VA1110's lower rating) with a higher interrupting capacity. Verify the load current and available fault current before substitution — the physical fit is the same, but the electrical ratings differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-3EF36-0DH0","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/3VA1150-3EF36-0DH0 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}}