{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-4EF36-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-4EF36-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-4EF36-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF36-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-4EF36-0HC0, molded case circuit breaker, 3-pole, 50 A at 40 °C, interrupting rating 121 kA at 240 V, line protection design, with shunt trip and 2 auxiliary switches.","salesMarkdown":"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). That makes it a fast mover for standard 50 A feeder circuits in commercial and light industrial switchboards. Three poles, 800 V rated insulation voltage, and interrupting ratings that step from 121 kA at 240 V down to 11.9 kA at 690 V. The 121 kA at 240 V covers high-fault service-entrance positions on 240/120 V split-phase or 208Y/120 V systems; the 75.6 kA at 415 V handles most 400 V-class industrial distribution. ## Built-in trip unit and auxiliary hardware The shunt trip lets a remote PLC or emergency-stop circuit force the breaker open — typical for safety interlocks on conveyor feeders or pump panels. No undervoltage release is installed on this variant. The breaker is 76.2 mm wide, 130 mm tall, 70 mm deep, so it fits a standard 3-pole MCCB footprint on a DIN rail or panel-mount base.","metaTitle":"Siemens 3VA1150-4EF36-0HC0 SENTRON MCCB, 50 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1150-4EF36-0HC0 molded case circuit breaker, 50 A continuous, 3-pole, 121 kA interrupting at 240 V. Active production. 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":"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":"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":"3VA11504EF360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches 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":"3VA9688-0BL30","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=76844&mlfb=3VA1150-4EF36-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF36-0HC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1150-4EF36-0HC0 and how is it quoted?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"What is the interrupting capacity of 3VA1150-4EF36-0HC0 at 415 V?","answer":"At 415 V the interrupting rating is 75.6 kA, which covers most 400 V-class industrial distribution panel fault levels."},{"question":"Does this breaker include a shunt trip or auxiliary switches?","answer":"Yes, it ships with a shunt trip (STL) release for remote tripping and two factory-fitted HQ auxiliary switches for status feedback. No undervoltage release is installed."},{"question":"What is the continuous current rating at elevated temperatures?","answer":"Rated 50 A at 40 °C, with derating to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C — minimal loss for a standard MCCB."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-4EF36-0HC0","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/3VA1150-4EF36-0HC0 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}}