{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-5EF36-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-5EF36-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-5EF36-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5EF36-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-5EF36-0KH0, molded case circuit breaker, 3-pole, 50 A at 40 °C, 187 kA breaking capacity at 240 V, line protection design.","salesMarkdown":"## 50 A MCCB with 187 kA interrupting capacity — line protection for high-fault panels The Siemens SENTRON 3VA1150-5EF36-0KH0 is a 3-pole molded case circuit breaker rated 50 A at 40 °C, sized for line protection in distribution panels where fault currents can hit 187 kA at 240 V. That interrupting capacity drops to 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V or 690 V — so it handles high-available-fault commercial and industrial services without cascading upstream. Thermal derating is mild: it holds 50 A through 50 °C, then drops to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C (–). That means in a 50 °C panel ambient — common in enclosed switchgear — you still get full ampacity. ## Auxiliary and release configuration — shunt trip, two aux switches, trip alarm The basic switch assembly is order code 3VA11505EF360AA0. For a panel that needs remote open via a PLC or E-stop contact, the shunt trip covers it without adding a separate relay. That 76.2 mm width (3 inches) is the standard 3-pole MCCB footprint for the 3VA frame — it drops into the same mounting hole pattern and bus-bar spacing as other 3VA three-pole units. Depth of 70 mm (2.76 in) leaves clearance for rear-connected bus stabs or plug-in base adapters in a typical distribution panel. No DIN-rail mounting on this frame; it bolts directly to a mounting plate or busbar system.","metaTitle":"3VA1150-5EF36-0KH0 SENTRON MCCB, 50 A, 3-Pole, 187 kA","metaDescription":"Siemens SENTRON 3VA1150-5EF36-0KH0 molded case circuit breaker, 50 A at 40 °C, 3-pole, 187 kA breaking at 240 V. Active production. Quoted 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":"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":"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":"3VA11505EF360AA0","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":"3VA9688-0BL33","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":"M","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=293962&mlfb=3VA1150-5EF36-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5EF36-0KH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1150-5EF36-0KH0?","answer":"This part 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 a firm price and lead time."},{"question":"What is the breaking capacity of 3VA1150-5EF36-0KH0 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 (–)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-5EF36-0KH0","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/3VA1150-5EF36-0KH0 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}}