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Square D 999220 - Molded Case Circuit Breaker, 20A 3P 600V

Square D
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Square D 999220 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase electrical systems. It features a 20A current rating and a 600V voltage rating, with a 10kA interrupting capacity at that voltage for effective fault isolation. The breaker utilizes a thermal-magnetic protection mechanism offering both long-time and instantaneous (LI) trip functions, and its three-pole, bolt-on configuration ensures a secure connection within compatible panelboards. This ML-1 type unit from the 99 Series is engineered to meet relevant industry standards for safety and performance in industrial and commercial applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, ML-1, Thermal Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 20A
  • Poles: 3
  • Connection: Bolt-On
  • Phase: 3
  • AIC Rating: 10kA @ 600V
  • Functions: LI (Long-Time and Instantaneous)
  • Family: 99 Series
  • Weight: 2 lb


Product Identification
  • GTIN: 00741566107016