Square D EJB34090 - Molded Case Circuit Breaker 90A 480V 3P
Square D EJB34090 - Molded Case Circuit Breaker 90A 480V 3P
Square D EJB34090 - Molded Case Circuit Breaker 90A 480V 3P
Square D EJB34090 - Molded Case Circuit Breaker 90A 480V 3P

Square D EJB34090 - Molded Case Circuit Breaker 90A 480V 3P

Square D
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Square D EJB34090 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 90A current rating and a 480V AC voltage rating, housed within a compact, bolt-on unit measuring 143.76 mm H x 74.68 mm W x 102.87 mm D and weighing 3.459 lb. The breaker is cULus listed and employs a thermal-magnetic trip mechanism with long-time and instantaneous (LI) functions for robust protection, capable of interrupting up to 65kA at 480V. Its construction supports a wide operating temperature range from -25°C to 70°C and is engineered for compatibility with NF panelboards, accepting copper wire from AWG 14 to 2/0 and aluminum wire from AWG 12 to 2/0 for flexible installation.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, EJB Series, Thermal-Magnetic Protection with Long-Time and Instantaneous (LI) Trip
  • Voltage Rating: 480V AC
  • Current Rating: 90A
  • 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)
  • Weight: 3.459 lb
  • Standards: cULus Certified
  • Applications: Three-Phase Industrial Power Distribution, NF Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On Connection
  • 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: LI - Long-Time and Instantaneous Trip
  • Panel Type: NF panelboard
  • Breaker Type: Molded Case
  • Wire Size: AWG 12 to 2/0 (Aluminum), AWG 14 to 2/0 (Copper)
  • Family: EJB Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901723783
  • GTIN: 00785901723783