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Square D EJB34030SA - Molded Case Circuit Breaker 30A 3-Pole

Square D
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Square D EJB34030SA is a bolt-on molded case circuit breaker designed for remote tripping and emergency power-off applications via a factory-installed shunt trip. It is rated for 30 A at 480Y/277 V AC with a 65 kA interrupting capacity at 480 V, providing thermal-magnetic protection with long time and instantaneous trip functions. The three-pole breaker measures 5.66 in (143.76 mm) x 3.92 in (99.57 mm) x 4.05 in (102.87 mm) and weighs 4.34 lb, featuring bolt-on mounting for secure installation in NF and NQ panelboards. It is certified to CULus, UL, and CSA standards, with an operating temperature range of -13 to 158 °F (-25 to 70 °C). This breaker is suited for industrial automation, building systems, and automated control systems requiring reliable overload and short circuit protection.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Family: EJB Series
  • Type: Molded Case
  • Poles: 3
  • Current Rating: 30 A
  • Voltage Rating: 480V
  • Interrupting Rating: 65 kA @ 480V
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Connection: Bolt-On
  • Wire Size: AWG 12 to AWG 6, AWG 14 to AWG 6, Aluminum/Copper
  • Phase: 3
  • Temp Rating: -13 to 158 °F (-25 to 70 °C)
  • Weight: 4.34 lb
  • Dimensions: 5.66 in (143.76 mm) x 3.92 in (99.57 mm) x 4.05 in (102.87 mm) (Height x Width x Depth)
  • Certification: CULus, UL, CSA
  • Country of Origin: Mexico
  • Accessory: Factory-installed shunt trip
  • Application: Remote tripping, EPO systems, and industrial automation control


Product Identification
  • UPC: 785901594598
  • GTIN: 00785902000000