Siemens CQD390 - Molded Case Circuit Breaker 90A 480V 3P
Siemens CQD390 - Molded Case Circuit Breaker 90A 480V 3P

Siemens CQD390 - Molded Case Circuit Breaker 90A 480V 3P

Siemens
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Siemens CQD390 is a molded case circuit breaker designed for reliable overcurrent protection in three-phase industrial power distribution systems. It features a 90A current rating and a 480V AC voltage rating, housed in a compact, durable frame with a feed-thru connection style for straightforward installation. This thermal-magnetic breaker provides coordinated long-time and instantaneous trip functions, ensuring protection against both overloads and short circuits with an interrupting capacity of 14kA at 480V. Constructed for robust performance, it operates within a temperature range of -25 to 70 °C and is certified to UL and CSA standards for safety and compliance. Its typical applications include protecting feeders and branch circuits in industrial control panels, machinery, and other electrical equipment requiring a 3-pole configuration.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, CQD Series
  • Voltage Rating: 480V AC
  • Current Rating: 90A
  • Poles: 3
  • Connection: Feed-Thru
  • Wire Size: 6 to 1/0 AWG Aluminum, 8 to 1 AWG Copper
  • AIC Rating: 14kA @ 480V
  • Phase: 3
  • Functions: Long Time and Instantaneous Trip
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Certification: UL Listed, CSA Certified
  • Weight: 2.15 lb
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643277847
  • GTIN: 00783643277847