Siemens CQD340 - Molded Case Circuit Breaker 40A 480V 3P
Siemens CQD340 - Molded Case Circuit Breaker 40A 480V 3P

Siemens CQD340 - Molded Case Circuit Breaker 40A 480V 3P

Siemens
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Siemens CQD340 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial electrical systems. It features a 40A current rating and a 480V AC voltage rating, engineered with a thermal-magnetic trip unit for both long-time delay and instantaneous short-circuit protection. The breaker's feed-thru connection accommodates copper wire from 14 to 6 AWG or aluminum wire from 12 to 6 AWG, and it operates within a temperature range of -25 to 70 °C. It is UL Listed and CSA Certified, meeting key industry standards with an interrupting capacity of 14kA at 480V. This breaker is typically applied in panelboards, switchboards, and industrial control panels for motor and feeder circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • Voltage Rating: 480V AC
  • Current Rating: 40A
  • Poles: 3
  • Connection: Feed-Thru
  • Wire Size: 12 to 6 AWG Aluminum / 14 to 6 AWG Copper
  • AIC Rating: 14kA @ 480V
  • Phase: 3
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Functions: LI (Long-Time and Instantaneous)
  • Certification: UL Listed, CSA Certified
  • Family: CQD Series
  • Weight: 2.101 lb


Product Identification
  • UPC: 078364327778
  • GTIN: 00783643277786