{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-5EF32-0HA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-5EF32-0HA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-5EF32-0HA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5EF32-0HA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-5EF32-0HA0, 3-pole molded case circuit breaker, 50 A at 40 °C, TM240 thermal-magnetic release, 187 kA breaking capacity at 240 V, shunt trip (STL).","salesMarkdown":"## Siemens 3VA1150-5EF32-0HA0 — 50 A MCCB with TM240 Release and Shunt Trip It carries a continuous current rating of 50 A at 40 °C, with minimal thermal derating up to 70 °C (45 A at 70 °C). The TM240 thermal-magnetic release provides fixed overload and short-circuit protection curves, while the integrated shunt trip (STL) allows remote tripping for emergency-off or supervisory control circuits. Breaking capacity is the headline number here: 187 kA at 240 V AC, stepping down to 121 kA at 415 V and 75.6 kA at 440 V. That SCCR headroom means this breaker can sit upstream of a high-fault panel without cascading — useful for industrial switchboards where the transformer rating drives available fault current above 100 kA. The shunt trip (STL) auxiliary release requires a separate control voltage — verify polarity and free-wheel diode on the coil before energizing. Maximum power loss is 14.6 W, so ventilation in a sealed enclosure is advisable if multiple breakers are ganged.","metaTitle":"Siemens 3VA1150-5EF32-0HA0 SENTRON MCCB, 50 A, 3-Pole, 187 k","metaDescription":"Siemens 3VA1150-5EF32-0HA0 SENTRON molded case circuit breaker, 50 A rated at 40 °C, 3-pole, TM240 release, 187 kA at 240 V. Current lifecycle stage. Sourced to order against RFQ.","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":"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]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","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":"3VA11505EF320AA0","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":"3VA9688-0BL30","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":"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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=494970&mlfb=3VA1150-5EF32-0HA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5EF32-0HA0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA1150-5EF32-0HA0 include a shunt trip?","answer":"Yes, it includes a shunt trip (STL) auxiliary release for remote tripping, designed for emergency-off or supervisory control circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-5EF32-0HA0","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/3VA1150-5EF32-0HA0 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}}