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Zinsco QB243020 - Molded Case Circuit Breaker 20A 3P (240V)

Zinsco
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Zinsco QB243020 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 240V AC voltage rating, housed within a compact, durable industrial enclosure. This thermal magnetic breaker utilizes a bolt-on connection and offers both long-time and instantaneous (LI) trip functions for coordinated protection. It is UL certified and engineered to interrupt up to 10kA of fault current at 240V, ensuring compliance with critical safety standards for industrial power distribution and motor control applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection with LI (Long-time & Instantaneous) Functions
  • Voltage Rating: 240V AC
  • Current Rating: 20A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 10kA @ 240V
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Certification: UL
  • Family: QB Series
  • Weight: 3 lb