EJB24125 - 125 Amp Circuit Breaker

EJB24125 - 125 Amp Circuit Breaker

Bring reliable protection and dependable performance to your electrical system with the Schneider Electric EJB24125 circuit breaker. Designed for use in Square D NF Panelboards, this 125‑amp E‑Frame breaker offers high-capacity fault handling and long-term operational stability—ideal for industrial and commercial installations where safety and consistent power distribution matter most.

Key Features and Benefits

• Precise overload and short‑circuit protection: The EJB24125 features a thermal‑magnetic trip unit that responds quickly and accurately, safeguarding wiring and equipment from overloads and dangerous fault conditions.
• Secure bolt‑on mounting: Easily installs in Square D NF Panelboards, ensuring a snug and stable fit that won’t loosen over time.
• Durable for long-term use: Built with quality materials and manufacturing standards that support up to 20 years of service, giving you peace of mind and minimizing maintenance.
• High interrupting capacity: Designed to clear substantial overloads or short circuits, even in heavy-duty environments — critical for ensuring electrical safety and preventing costly downtime.

Technical Specifications

• Rated Current: 125 A
• Maximum Operating Voltage: 480Y/277 VAC
• Breaking Capacity:
  • 100 kA at 120 VAC
  • 65 kA at 277 VAC
• Trip Unit Rating: 2300 A
• Dimensions:
  • Height: 5.66″
  • Width: 1.96″
  • Depth: 4.05″
• Weight: 3 lb (1.36 kg)
• Ambient Air Temperature (Operation): Up to 104 °F (40 °C)

Material Compliance and Certifications

• Certifications: The EJB24125 is cULus certified, meeting stringent North American safety and performance standards.
• Environmental Compliance: It carries the Green Premium® designation, reflecting a commitment to environmental responsibility. The design is mercury‑free and compliant with RoHS and REACH regulations, ensuring a more environmentally friendly choice for responsible installations.

Where It Works Best

• This circuit breaker is an excellent choice for commercial and industrial lighting panelboards, power distribution systems, and general-purpose feeder circuits. Its high interrupt rating and reliable performance also make it suitable for HVAC, refrigeration, and other systems that demand strong, consistent protection. If you’re managing a facility that requires dependable overcurrent protection and long-lasting safety, the EJB24125 stands as a solid, professional-grade solution.