{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-5MH32-0CE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-5MH32-0CE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-5MH32-0CE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-5MH32-0CE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1332-5MH32-0CE0, molded case circuit breaker, 320 A, 3-pole, 187 kA at 240 V, undervoltage release, 4 auxiliary switches.","salesMarkdown":"It carries a breaking capacity of 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 — meaning it can safely interrupt fault currents up to those levels without cascading upstream, which is critical for selectivity coordination in high-fault installations. The 320 A rating is non-derated up to 50 °C ambient; at 55 °C it carries 313 A, at 60 °C 306 A, at 65 °C 299 A, and at 70 °C 292 A — so in a warm enclosure you lose about 1% per degree above 50 °C, which is typical for this class and worth factoring into your thermal budget. Maximum power loss is 82.6 W — not negligible in a crowded panel; plan for ventilation or derate adjacent devices if you're stacking breakers. Dimensions are 248 mm high, 138 mm wide, 110 mm deep — standard 3-pole MCCB footprint for a 320 A frame; it mounts on a DIN rail or directly to a backplate, so it drops into most existing SENTRON or third-party panels without re-drilling. No communication module onboard (no Modbus or PROFIBUS), and no ground-fault monitoring — those are separate add-ons if your spec requires them.","metaTitle":"Siemens 3VA1332-5MH32-0CE0 SENTRON MCCB, 320 A, 3-Pole","metaDescription":"Siemens 3VA1332-5MH32-0CE0 SENTRON MCCB, 320 A rated, 3-pole, 187 kA at 240 V. Active production. Sourced to order. RFQ for pricing and availability.","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":"320 A","Minimum":"320 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":"No","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":"Starter protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"82.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA13325MH320AA0","Design Of The Auxiliary Switch":"4 auxiliary switches 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":"TM120M","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":"3VA9608-0BB24","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"I","number of CO contacts / for auxiliary contacts":"4","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=1211037&mlfb=3VA1332-5MH32-0CE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1332-5MH32-0CE0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA1332-5MH32-0CE0 include auxiliary switches or an undervoltage release?","answer":"Yes, it comes with an undervoltage release (UVR) and four auxiliary switches (HQ design) factory-installed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-5MH32-0CE0","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/3VA1332-5MH32-0CE0 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}}