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Challenger A21540CT - 40A 4-Pole Thermal Magnetic Circuit Breaker

Challenger
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Challenger A21540CT is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 40A current rating and a 240V AC voltage rating, housed within a compact, plug-in configuration with four poles for comprehensive circuit isolation. The unit employs a thermal-magnetic protection mechanism, combining long-time delay and instantaneous trip (LI) functions, and is constructed with durable materials for industrial durability, meeting relevant industry standards for safety and performance. This breaker is typically applied in commercial and industrial panelboards and switchboards where a 10kA interrupting capacity at 240V is required for branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, A-Series, Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Phase: 3
  • Poles: 4
  • Connection: Plug-In
  • AIC Rating: 10kA @ 240V
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Weight: 5 lb