{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-5EF32-0KJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-5EF32-0KJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-5EF32-0KJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-5EF32-0KJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1332-5EF32-0KJ0, molded case circuit breaker, 3-pole, rated current 320 A at 40 °C, breaking capacity 187 kA at 240 V AC, thermal-magnetic overcurrent release TM240, with shunt trip and auxiliary switches.","salesMarkdown":"The thermal-magnetic release (TM240) handles overloads and short-circuits; the thermal element responds to sustained overcurrent while the magnetic element clears fast faults. Breaking capacity is 187 kA at 240 V AC, 121 kA at 415/440 V, 75.6 kA at 500 V, and 11.9 kA at 690 V — those numbers tell you the maximum fault current the breaker can safely interrupt at each voltage level. It also includes two auxiliary switches plus a separate trip-alarm switch, so you get status feedback for both the breaker position and whether it tripped on fault. The 3VA1332-5EF32-0KJ0 measures 248 mm high, 138 mm wide, and 110 mm deep — a standard MCCB footprint for 320 A frame size. Maximum power loss is 80.1 W at rated load. That's dissipated as heat inside the enclosure — factor it into your panel cooling calculation, especially if the breaker is grouped with other heat sources. The rated current derates from 320 A at 40 °C to 292 A at 70 °C; the table shows 320 A holds steady through 50 °C, then drops by roughly 7 A per 5 °C step above that.","metaTitle":"Siemens 3VA1332-5EF32-0KJ0 SENTRON MCCB, 320A, 187kA at 240V","metaDescription":"Siemens SENTRON 3VA1332-5EF32-0KJ0 molded case circuit breaker, 3-pole, 320A rated at 40°C, 187kA breaking capacity at 240V AC. TM240 thermal-magnetic release, shunt trip, 2 aux +","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"11.9 kA","at 40 °C":"320 A","at 45 °C":"320 A","at 50 °C":"320 A","at 55 °C":"313 A","at 60 °C":"306 A","at 65 °C":"299 A","at 70 °C":"292 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 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","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"80.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA13325EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HP","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":"3VA9988-0AB11","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=1401899&mlfb=3VA1332-5EF32-0KJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1332-5EF32-0KJ0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"The breaking capacity is 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 11.9 kA at 690 V. These are the maximum fault currents the breaker can safely interrupt at each voltage level."},{"question":"What auxiliary switches and releases come with this breaker?","answer":"This variant includes two auxiliary switches plus one trip-alarm switch for status feedback. It also has a shunt trip (STL) for remote opening. There is no undervoltage release and no ground-fault monitoring on this suffix."},{"question":"How do I get pricing and availability for 3VA1332-5EF32-0KJ0?","answer":"Submit an RFQ through this listing. We source through our independent distribution network and confirm current pricing and availability at quote time — no stock or price figures are published here."},{"question":"Will this breaker drop into a panel designed for 3VA2116-5HL32-0AK0?","answer":"No — the 3VA1332-5EF32-0KJ0 is a 320 A frame with a TM240 release, while the 3VA2116-5HL32-0AK0 is a different frame size and rating. Physical dimensions and busbar connections differ; you would need to verify the mounting footprint and terminal spacing before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-5EF32-0KJ0","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/3VA1332-5EF32-0KJ0 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}}