Square D EJB34100SA - Molded Case Circuit Breaker 100A 3-Pole
Square D EJB34100SA - Molded Case Circuit Breaker 100A 3-Pole

Square D EJB34100SA - Molded Case Circuit Breaker 100A 3-Pole

Square D
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Square D EJB34100SA is a bolt-on molded case circuit breaker designed for thermal-magnetic overload and short-circuit protection with a factory-installed shunt trip for remote tripping. It is rated for 100A at 480Y/277 V AC with a 65kA interrupting capacity at 480V and features LI (Long Time and Instantaneous) protection functions across three poles. This 3-phase 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, accepting wire sizes from AWG 12 to AWG 2/0 Aluminum and AWG 14 to AWG 2/0 Copper. It is UL 489 Listed and CSA Certified, operating within a temperature range of -13 to 158 °F (-25 to 70 °C). Typical applications include emergency power-off (EPO) systems, automated safety shutdowns, and power distribution in industrial and commercial facilities.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Molded Case
  • Family: EJB Series
  • Country of Origin: Mexico
  • 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)
  • Weight: 4.34 lb
  • Functions: LI - Long Time and Instantaneous
  • Voltage Rating: 480V
  • Poles: 3
  • Protection: Thermal Magnetic
  • Wire Size: AWG 12 to AWG 2/0 Aluminum, AWG 14 to AWG 2/0 Copper
  • AIC rating: 65kA@480V
  • Phase: 3
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Current Rating: 100A
  • Product Type: Bolt-On Thermal-Magnetic Circuit Breaker with Shunt Trip
  • Type: EJB
  • Amperage Rating: 100 A
  • Voltage Rating: 480Y/277 V AC
  • Interrupting Rating: 18 kA @ 480Y/277 V AC
  • Trip Unit: Fixed thermal-magnetic
  • Accessory: Factory-installed shunt trip
  • Mounting: Bolt-on (for NF/NQ panelboards)
  • Application: Remote tripping, EPO systems, and control system shutdowns
  • Certifications: UL 489 Listed, CSA Certified


Product Identification
  • UPC: 785901649205