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Murray MP145 - Molded Case Circuit Breaker 45A 1-Pole (10kA AIC)

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Murray MP145 is a molded case circuit breaker designed for providing reliable overcurrent protection in single-phase, 120V AC residential and light commercial electrical systems. It features a 45A current rating and a 10kA interrupting capacity at 120V, utilizing a thermal-magnetic trip mechanism for both long-time delay and instantaneous short-circuit protection. The compact, plug-in unit measures 2.756 x 0.787 x 2.756 inches and weighs 0.331 lb, constructed for straightforward installation in compatible load centers. This MP Series breaker is engineered to meet relevant industry standards for safety and performance in its designated applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, MP-T, Thermal Magnetic Protection
  • Voltage Rating: 120V AC
  • Current Rating: 45A
  • Dimensions: 2.756" H x 0.787" W x 2.756" D (70mm x 20mm x 70mm)
  • Standards: Complies with UL and other applicable industry standards
  • Applications: Residential and light commercial branch circuit protection
  • Switch Type: Thermal Magnetic
  • Configuration: Plug-In
  • Phase: 1
  • Amperage: 45A
  • AIC Rating: 10kA @ 120V
  • Connection: Plug-In
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Frame Size: MP Series
  • Trip Type: Thermal Magnetic
  • Breaker Type: Molded Case
  • Mounting: Plug-In
  • Weight: 0.331 lb
  • Country of Origin: Mexico


Product Identification
  • UPC: 040892010480
  • GTIN: 00040892010480