{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5MN32-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5MN32-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, molded case circuit breaker, 3VA2450-5MN32-0HC0, 500 A, 3-pole, motor protection design, 121 kA at 415 V, with shunt trip and auxiliary switches.","salesMarkdown":"## SENTRON 3VA2 — 500 A MCCB for Motor Protection It carries a 3-pole configuration with an integrated shunt trip (STL) and two auxiliary switches (HQ) factory-fitted, so it arrives ready for remote trip and status feedback without additional wiring modules. Breaking capacity is 121 kA at 415 V and 440 V, dropping to 75.6 kA at 500 V and 9 kA at 690 V — figures that suit it for high-fault industrial distribution downstream of a transformer or upstream of motor control centers. The 187 kA rating at 240 V confirms it handles the worst-case bolted fault on a 240 V delta secondary. ## Thermal Derating and Continuous Current Above that, it steps down: 495 A at 55 °C, 490 A at 60 °C, 485 A at 65 °C, and 480 A at 70 °C. For a panel that runs warm — say a 55 °C internal ambient — you lose 5 A of headroom, not enough to force a frame-size jump, but worth confirming against the motor FLA plus service factor. Maximum power loss is 99 W at rated load. That heat stays inside the enclosure; factor it into the panel's thermal budget if the MCCB shares a compartment with solid-state drives or PLCs. Footprint is 138 mm wide by 248 mm tall by 110 mm deep (5.43 × 9.76 × 4.33 in). ## Integrated Auxiliaries and Releases Factory-installed shunt trip (STL) allows remote tripping from a PLC or E-stop circuit. Two auxiliary switches (HQ) provide normally-open and normally-closed contacts for status feedback — one pair for the breaker's open/closed state, the other for trip indication. No separate auxiliary switch block to order and snap on. Phase failure detection is built into the motor-protection curve. Undervoltage release is not fitted on this variant; if UVR is required, the 3VA2450-5MN32-0AA0 basic switch is the starting point for adding one.","metaTitle":"Siemens 3VA2450-5MN32-0HC0 SENTRON MCCB, 500 A, 3-Pole, Moto","metaDescription":"Siemens 3VA2450-5MN32-0HC0 SENTRON molded case circuit breaker, 500 A at 40-50 °C, 3-pole, motor protection design, 121 kA at 415 V. Current 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":"110 mm","Width":"138 mm","Height":"248 mm","Maximum":"13 s","Minimum":"4 s","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"9 kA","at 40 °C":"500 A","at 45 °C":"500 A","at 50 °C":"500 A","at 55 °C":"495 A","at 60 °C":"490 A","at 65 °C":"485 A","at 70 °C":"480 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Limited To 1 S":"6 kA","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":"Motor protection","Communication Function":"No","Phase Failure Detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"99 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2450-5MN32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"500 A","Insulation Voltage / Rated Value":"800 V","adjustable trip class (Tc CLASS)":"10A, 10E, 20E","Design Of The Overcurrent Release":"ETU350M","protection class IP / on the front":"IP40","operating power / at AC-3 / at 230 V":"110 000 W","operating power / at AC-3 / at 400 V":"200 000 W","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL30","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 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":"LSI","number of CO contacts / for auxiliary contacts":"2","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":"on both sides nut keeper kit","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=570130&mlfb=3VA2450-5MN32-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5MN32-0HC0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5MN32-0HC0","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/3VA2450-5MN32-0HC0 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}}