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Cutler Hammer CHB345 - 3-Pole 45A Molded Case Circuit Breaker

Cutler Hammer
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Cutler Hammer CHB345 is a 3-pole molded case circuit breaker designed for overcurrent protection in commercial and industrial electrical distribution systems. It is rated for 45 amps at 240 volts AC, providing long-time and instantaneous (LI) trip functions through a thermal magnetic protection mechanism. This bolt-on breaker weighs 1 lb and features a compact construction for installation in Type CHB loadcenters. It carries a 10kA interrupting capacity at 240V and is UL 489 certified, ensuring compliance with industry safety standards. Typical applications include branch circuit protection in panelboards and switchboards within three-phase electrical systems.

Key Features & Specifications
  • Type: Molded Case
  • Family: CHB Series
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 240V
  • Current Rating: 45A
  • Number of Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 10kA@240V
  • Weight: 1 lb
  • Certifications: UL 489
  • Compatible with Type CHB Loadcenters