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Siemens HKB3B800 - Molded Case Circuit Breaker 800A 3-Pole 600V

Siemens
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Siemens HKB3B800 is a 3-pole molded case circuit breaker from the HKB3 Series, designed for overcurrent and short-circuit protection in industrial and commercial power distribution systems. It is rated for 800A at 600VAC with a thermal magnetic trip unit providing LI (Long-Time and Instantaneous) protection functions, and delivers an interrupting capacity of 50kA at 480VAC. The breaker features a bolt-on mounting configuration for secure installation in panelboards and switchgear, weighs 42 lb, and operates at 50/60 Hz. It is UL 489 listed and classified as HACR type, ensuring compliance with rigorous safety standards for demanding environments. Typical applications include main and feeder protection in industrial plants, commercial facilities, and power distribution networks.

Key Features & Specifications
  • Type: Molded Case
  • Family: HKB3 Series
  • Type: HKB
  • Poles: 3
  • Current Rating: 800A
  • Voltage Rating: 600VAC
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • AIC Rating: 50kA@480VAC, 65kA @ 480VAC, 100kA @ 240VAC
  • Connection: Bolt-On
  • Phase: 3
  • Weight: 42 lb
  • Frequency: 50/60 Hz
  • HACR Type
  • Non-interchangeable frame
  • UL 489 listed