EJB24090 - 90 Amp Circuit Breaker

EJB24090 - 90 Amp Circuit Breaker

The Schneider Electric EJB24090 90A Circuit Breaker delivers powerful circuit protection when you’re powering commercial or industrial electrical systems. This two‑pole E‑Frame breaker handles up to 90 amps at a maximum operating voltage of 480Y/277 VAC, and brings a high‑capacity interrupt rating — up to 100 kA at 120 VAC — to safeguard your wiring against overloads and short‑circuit faults. Its thermal‑magnetic trip unit reacts quickly and precisely, ensuring a sensitive response to dangerous conditions while maintaining stable operation under normal loads. Built for demanding environments, this circuit breaker offers bolt‑on mounting and a simple trip indicator for easy maintenance and troubleshooting. Whether you're installing a new panel or upgrading existing infrastructure, this breaker gives you reliable protection you can count on.

Key Features and Benefits

• High Interrupting Capacity: Rated at up to 100 kA at 120 VAC, the EJB24090 helps preserve system integrity during high‑fault conditions, greatly reducing the risk of damage to wiring and equipment.
• Thermal‑Magnetic Trip Unit: Provides accurate, dependable overload and short‑circuit protection, giving you peace of mind in heavy‑duty commercial or industrial settings.
• Solid Mounting System: The bolt‑on mounting design ensures the breaker stays securely in place, even under vibration or load shifts, making it ideal for long‑term installations.
• Built-In Trip Indicator: The integrated signal indicator simplifies maintenance by letting technicians quickly identify and isolate tripped circuits.
• HACR Rating: Suitable for heating, air‑conditioning, and refrigeration applications, giving you flexibility for a variety of HVAC and power distribution uses.

Technical Specifications

• Product Series: 125 A Frame EDB–EGB–EJB
• Device Short Name: EJB (E‑Frame Series)
• Trip Unit Type: Thermal‑Magnetic
• Line Rated Current: 90 A
• Poles: 2‑Pole
• Maximum Operating Voltage: 480Y/277 VAC
• Wire Size Compatibility: AWG 12 … AWG 2/0 aluminum, AWG 14 … AWG 2/0 copper
• Interrupting Capacity:
  • 100 kA at 120 VAC / 120/240 VAC
  • 65 kA at 277 VAC
  • 65 kA at 480Y/277 VAC
• Mounting Style: Bolt‑On
• Dimensions:
  • Height: 5.66 in
  • Width: 1.96 in
  • Depth: 4.05 in
• Net Weight: 3 lb (1.36 kg)

Material Compliance and Certifications

• UL Listed: This breaker is UL listed (cULus), affirming that it meets stringent safety and performance standards necessary for commercial and industrial installations.
• Green Premium: It carries Schneider Electric’s “Green Premium” designation, indicating compliance with environmental regulations and transparency regarding environmental impact.
• Environmental Responsibility: Free of mercury and compliant with the EU RoHS directive, the EJB24090 is designed with both safety and environmental responsibility in mind.

Where It Works Best

• The EJB24090 shines in commercial and industrial installations—especially in electrical panelboards requiring dependable overload and short‑circuit protection. It’s a practical choice for HVAC systems, refrigeration units, manufacturing equipment, and any facility where high reliability is essential. If you’re outfitting or upgrading a power distribution panel and you need a 90 A breaker that balances capacity, durability, and safety — this circuit breaker offers a solid, long‑lasting solution.