{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1450-5FF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1450-5FF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1450-5FF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1450-5FF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1450-5FF42-0AA0, molded case circuit breaker, 4-pole, 500 A continuous rated current, TM240 thermal-magnetic overcurrent release, line protection design.","salesMarkdown":"The TM240 thermal-magnetic release handles overloads and short-circuits without external control power — a straightforward fit for main or feeder protection where communication functions aren't required. Breaking capacity is voltage-dependent: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 11.9 kA at 690 V. The 248 mm height, 184 mm width, and 110 mm depth fit standard SENTRON mounting patterns — verify busbar spacing against your existing panel layout. ## Where it lands in the SENTRON family — line protection, no frills It's the thermal-magnetic workhorse for main or feeder breakers where you don't need electronic trip units or remote monitoring. The 4-pole configuration covers three-phase-plus-neutral or three-phase with a switched neutral.","metaTitle":"Siemens 3VA1450-5FF42-0AA0 SENTRON MCCB, 500 A, 4-Pole, TM24","metaDescription":"Siemens SENTRON 3VA1450-5FF42-0AA0 molded case circuit breaker, 500 A continuous, 4-pole, TM240 release. Breaking capacity 187 kA at 240 V. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","Height":"248 mm","Maximum":"5 000 A","Minimum":"2 500 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":"500 A","at 45 °C":"500 A","at 50 °C":"500 A","at 55 °C":"488 A","at 60 °C":"476 A","at 65 °C":"464 A","at 70 °C":"452 A","Depth [In]":"4.33 in","Width [In]":"7.24 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","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":"122.7 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"500 A","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","design of the N-conductor protection":"50%","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"630 A","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=569019&mlfb=3VA1450-5FF42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1450-5FF42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1450-5FF42-0AA0?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels. No automated price or lead time is displayed because availability fluctuates — a quote gives you the real number."},{"question":"What is the breaking capacity of 3VA1450-5FF42-0AA0 at different voltages?","answer":"187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 11.9 kA at 690 V. The interrupting rating drops as system voltage rises — at 690 V it's still adequate for most industrial feeds but verify against your available fault current."},{"question":"What are the physical dimensions of 3VA1450-5FF42-0AA0?","answer":"Height 248 mm, width 184 mm, depth 110 mm. Fits standard SENTRON mounting and busbar patterns. Verify busbar spacing and enclosure cutout against these dimensions before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1450-5FF42-0AA0","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/3VA1450-5FF42-0AA0 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}}