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Square D MHL26450 - MHL Series 2-Pole 450A Circuit Breaker (600V)

Square D
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Square D MHL26450 is a 2-pole molded case circuit breaker from the MHL Series, designed for overcurrent protection in commercial and industrial power distribution systems. It delivers 450A of current capacity at 600VAC with a 65kA interrupting rating at 480VAC, utilizing thermal-magnetic trip technology for long-time and instantaneous fault response. The M Frame breaker weighs 40 lb, features a feed-thru connection, and is rated for single-phase operation. It is UL listed and CSA certified per UL Standard 489, ensuring compliance with North American electrical safety standards. This breaker is suitable for medium to heavy-duty electrical systems requiring reliable overcurrent protection and fault interruption.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: MHL Series
  • Type: MHL
  • Weight: 40 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: M Frame
  • Voltage Rating: 600VAC
  • Poles: 2
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • AIC rating: 65kA@480V
  • Phase: 1
  • Current Rating: 450A
  • Interrupting Capacity: 25kA @ 600VAC
  • Series: MHL (1000 Ampere Frame)
  • Trip Type: Thermal-Magnetic
  • Certifications: UL Listed, CSA Certified
  • Network Frequency: 50/60 Hz
  • Mounting: Feed-Thru
  • Rated Service Breaking Capacity: 35kA @ 240VAC