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CP4HD321

Cutler Hammer
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Eaton CP4HD321 is a 30-amp, 240-volt, 3-pole fusible bus plug designed for overcurrent protection in low-voltage power distribution systems. It features a 3-wire configuration with a 200kA interrupting capacity at 240V and supports Class R, H, and K fuses for versatile circuit protection. The unit weighs 40 lb and is constructed for plug-in mounting to Eaton CP2 and CP4 series bus duct systems. It complies with standard electrical certifications including UL and CSA for industrial and commercial installations. This bus plug is typically applied in manufacturing facilities, data centers, and commercial buildings requiring reliable branch circuit protection.

Key Features & Specifications
  • Manufacturer: Eaton
  • Type: CP4HD
  • Current Rating: 30 Amps
  • Voltage Rating: 240 Volts
  • Phase: 3
  • Poles: 3
  • Wire Configuration: 3-wire
  • Fuse Class: R, H, K
  • AIC Rating: 200kA@240V
  • Weight: 40 lb
  • Mounting Type: Plug-in for bus duct
  • Series/Frame: Compatible with CP2 and CP4 series busway
  • Certifications: UL, CSA


Eaton CP4HD321 - Fusible Bus Plug 30A 240V 3-Phase