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Eaton FD4050 - Molded Case Circuit Breaker 50A 600V 4-Pole

Cutler Hammer
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Eaton FD4050 is a Series C molded case circuit breaker from the F Frame family, designed for overcurrent protection in low voltage distribution systems. This 4-pole unit provides LI (Long-Time and Instantaneous) thermal magnetic protection at a 50A current rating and 600V AC, with a 25kA interrupting capacity at 480V AC for three-phase applications. The bolt-on connection design and 5 lb weight facilitate secure installation in industrial and commercial panelboards, while the fixed thermal and fixed magnetic trip elements ensure reliable fault interruption without adjustment. The breaker complies with applicable industry standards for low voltage distribution and is suitable for use in harsh and hazardous environments. Typical applications include branch circuit protection in manufacturing facilities, commercial buildings, and infrastructure projects requiring a compact, high-interrupting molded case breaker.

Key Features & Specifications
  • Manufacturer: Eaton
  • Item Subcategory: Molded Case
  • Family: Series C
  • Type: FD
  • Weight: 5 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: F Frame
  • Voltage Rating: 600 Vac, 250 Vdc
  • Poles: 4
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 25kA@480V
  • Phase: 3
  • Current Rating: 50 A
  • Interrupt Rating: 100 kAIC at 240V, 65 kAIC at 480V
  • Mounting Type: Bolt-on
  • Breaker Type: HFD
  • Trip Type: Fixed Thermal, Fixed Magnetic
  • Application: Industrial, Commercial
  • Compatibility: Series C Accessories
  • Environment: Harsh, Hazardous