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Hubbell MCR300 - 1 Pole 300 Amp Circuit Breaker (240/480 VAC)

Hubbell
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Hubbell MCR300 is a single pole, 300 amp molded case circuit breaker engineered for reliable electrical protection in commercial and industrial environments. It operates at 240/480 VAC with a 10kA interrupt rating and features a thermal-magnetic trip unit for precise overcurrent response. The breaker weighs 5.19 lb, utilizes an EHD frame, and is designed for standard panelboard mounting with a compact construction that optimizes panel space. It is UL Listed and CSA Certified, ensuring compliance with rigorous safety standards. This breaker is well-suited for new installations and upgrades in load centers and panelboards within demanding commercial and industrial settings.

Key Features & Specifications
  • Manufacturer: Hubbell
  • Amperage: 300 Amp
  • Poles: 1 Pole
  • Voltage: 240/480 VAC
  • Frame: EHD
  • Interrupt Rating: 10kA
  • Mounting Type: Standard Panelboard
  • Trip Unit: Thermal-Magnetic
  • Certifications: UL Listed, CSA Certified
  • Series: MCR
  • Application: Commercial, Industrial
  • Weight: 5.19 lb


Part Number: MCR300