EJB34100 - 100 Amp Circuit Breaker

EJB34100 - 100 Amp Circuit Breaker

The Schneider Electric EJB34100 100 Amp Circuit Breaker is a premium three‑pole E‑Frame unit engineered to deliver strong, dependable protection for your electrical system. With a 100 A current rating and a wide 480Y/277 V AC operating range, this breaker is built to shield your circuits from overloads and short circuits while offering dependable performance in demanding commercial or industrial settings. Its thermal‑magnetic trip unit reacts quickly and accurately to fault conditions, and the bolt‑on design makes installation straightforward — simply secure it into your NF panelboard, and you’re ready to go.

Key Features and Benefits

• High Interrupting Capacity: With a maximum interrupt rating up to 100 kA at 120 V AC (65 kA–100 kA across common voltages), the EJB34100 gives your electrical system serious protection against major fault currents.
• Reliable Thermal‑Magnetic Trip Unit: Delivers precise, consistent tripping performance for both overloads and short circuits, helping prevent damage to wiring, equipment, and panels.
• Bolt‑On Mounting: Simplifies and stabilizes installation into NF‑style panelboards; this secure mounting reduces installation time and ensures a strong, durable fit.
• Durability for Years of Service: Built with quality materials and design standards, the breaker is made to provide long-term protection for up to two decades — minimizing maintenance needs and downtime.

Technical Specifications

• Device Short Name: EJB
• Module Type: E‑Frame
• Line Rated Current: 100 A
• Maximum Operating Voltage: 480Y / 277 V AC
• Wire Range: AWG 12…AWG 2/0 aluminum, AWG 14…AWG 2/0 copper
• Breaking Capacity:
  • 65 kA @ 277 V AC
  • 100 kA @ 240 V AC
  • 65 kA @ 480Y/277 V AC
  • 100 kA @ 120 V AC
  • 100 kA @ 120/240 V AC
• Mounting Mode: Bolt‑on
• Number of Poles: 3 (Three‑Pole)
• Trip Unit Technology: Thermal‑Magnetic
• Dimensions:
  • Height: 5.66 in (143.76 mm)
  • Width: 2.94 in (74.68 mm)
  • Depth: 4.05 in (102.87 mm)
• Net Weight: 4 lb (1.81 kg)

Material Compliance and Certifications

• Certified to cULus standards: meets strict North American safety and performance regulations.
• Built under the Green Premium environmental standard: free of mercury and compliant with RoHS and REACH regulations, reflecting a responsible approach to manufacturing and long-term environmental safety.

Where It Works Best

• The EJB34100 is especially well suited for installation in NF‑style panelboards used for lighting, branch circuits, and low‑voltage equipment. Its high interrupt capacity and reliable thermal‑magnetic trip mechanism make it a dependable choice for commercial buildings, industrial facilities, and large residential applications where circuit protection is critical. Whether you’re protecting lighting panels, motor loads, or other low-voltage systems, this breaker offers a solid balance of safety, longevity, and dependable performance.