Square D EJB34050 - Molded Case Circuit Breaker 50A 480V 3P
Square D EJB34050 - Molded Case Circuit Breaker 50A 480V 3P
Square D EJB34050 - Molded Case Circuit Breaker 50A 480V 3P
Square D EJB34050 - Molded Case Circuit Breaker 50A 480V 3P

Square D EJB34050 - Molded Case Circuit Breaker 50A 480V 3P

Square D
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Square D EJB34050 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 50A current rating and a 480V AC voltage rating, housed within a compact, bolt-on J-frame construction measuring 143.76 mm H x 74.68 mm W x 102.87 mm D and weighing 3.6 lb. This thermal-magnetic breaker, certified to cULus standards, offers long-time and instantaneous (LI) trip functions with a 65kA interrupting capacity at 480V and operates effectively in ambient temperatures from -25°C to 70°C. Its lug terminals accommodate copper or aluminum conductors from AWG 14 to 2/0, making it suitable for installation in NF-style panelboards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 480V AC
  • Current Rating: 50A
  • Dimensions: 143.76 mm H x 74.68 mm W x 102.87 mm D (5.66 in x 2.94 in x 4.05 in)
  • Standards: cULus
  • Applications: Three-Phase Industrial Power Distribution, NF Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous Trip (LI)
  • Frame Size: J; E-Frame
  • Panel Type: NF Panelboard
  • Breaker Type: Molded Case
  • Terminal Connection: Lug
  • Wire Size: AWG 12 to 2/0 (Aluminum), AWG 14 to 2/0 (Copper)
  • Certification: cULus
  • Weight: 3.6 lb


Product Identification
  • UPC: 785901335238
  • GTIN: 00785901335238