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Square D EH14050 - Molded Case Breaker 50A 1-Pole

Square D
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Square D EH14050 is a molded case circuit breaker from the EH Series designed for overload and short circuit protection in commercial and industrial power distribution systems. This single-pole unit is rated for 50A at 277/480V with a 14kA interrupting capacity at 277V, providing LI (Long-Time and Instantaneous) protection through its thermal magnetic trip mechanism. The breaker weighs 2 lb, features plug-in connection for easy installation in compatible panelboards, and accepts wire sizes from 14 to 2 AWG aluminum or copper. It is a 1-phase device that meets industry standards for reliable circuit protection in demanding electrical environments. Typical applications include lighting and power distribution systems requiring dependable branch circuit protection.

Key Features & Specifications
  • Type: EH
  • Item Subcategory: Molded Case
  • Family: EH Series
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 480V
  • Poles: 1
  • Connection: Plug-In
  • Protection: Thermal Magnetic
  • Wire Size: 14 to 2 AWG AL/CU
  • AIC rating: 14kA@277V
  • Phase: 1
  • Current Rating: 50A
  • Weight: 2 lb
  • Amperage: 50A
  • Voltage: 277/480V
  • Mounting Type: Plug-In
  • Interrupt Rating: 14kA @ 277V
  • Application: Lighting and Power Distribution
  • Compatible Panelboards: NEHB
  • Protection Type: Molded Case
  • Frame: EH


Part Number: EH14050