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Zinsco QCB40 - Molded Case Circuit Breaker 40A 240V 2-Pole

Zinsco
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Zinsco QCB40 is a molded case circuit breaker designed for providing reliable overcurrent protection in industrial and commercial electrical systems. It features a 40A current rating and a 240V AC voltage rating, housed within a compact, durable molded case with a bolt-on connection for secure installation. This thermal magnetic breaker complies with industry standards for safety and performance, offering both long-time and instantaneous (LI) trip functions. It is engineered for single-phase applications, providing a 10kA interrupting capacity at 240V to safeguard electrical circuits.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Poles: 2
  • Phase: 1
  • AIC Rating: 10kA @ 240V
  • Functions: LI (Long-Time and Instantaneous)
  • Family: QC Series
  • Weight: 3 lb
  • Connection: Bolt-On
  • Protection: Thermal Magnetic


Product Identification
  • Manufacturer: Thomas & Betts / Zinsco
  • Model: QCB40
  • Item Subcategory: Molded Case