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Siemens CKL3B300 - Molded Case Circuit Breaker 300A 600V 3-Pole

Siemens
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Siemens CKL3B300 is a 3-pole molded case circuit breaker from the Cordon family, designed to provide thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions for industrial and commercial power distribution systems. Rated for 300A at 600V AC, it delivers a 100kA interrupting capacity at 480V AC, ensuring robust fault current interruption in three-phase applications. The unit features a bolt-on connection type, weighs 35 lb, and is constructed as a compact molded case for reliable performance in demanding environments. It complies with industry standards for overcurrent protection, making it suitable for use in panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Manufacturer: Siemens
  • Series: Cordon (CKL type)
  • Type: CKL
  • Amperage: 300A
  • Voltage Rating: 600V AC
  • Poles: 3
  • Phase: 3
  • Interrupt Rating: 100kA at 480V
  • Trip Unit: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Mounting Type: Molded Case
  • Weight: 35 lb