EDB34090 - 90 Amp Circuit Breaker

EDB34090 - 90 Amp Circuit Breaker

The Schneider Electric EDB34090 is a high-performance 90 Amp, 3-pole E-Frame circuit breaker engineered to provide dependable overload and short-circuit protection in commercial and industrial electrical systems. Specifically designed for use in compatible Square D NF panelboards, this bolt-on breaker features proven thermal-magnetic trip technology that responds quickly to abnormal electrical conditions while delivering reliable protection during everyday operation. Whether you're replacing an existing breaker or installing a new panelboard, the EDB34090 offers the durability, performance, and safety professionals expect from Schneider Electric.

Rated for 480Y/277 VAC, the EDB34090 delivers interrupting capacities of up to 25 kA at applicable voltage ratings, helping protect electrical equipment against fault currents. An integrated trip indicator provides a clear visual signal when the breaker has tripped, making troubleshooting and maintenance faster and more efficient.

Key Features and Benefits

• 90 Amp current rating for reliable branch circuit protection
• Three-pole design for three-phase electrical distribution systems
• Bolt-on mounting provides a secure and dependable installation
• Thermal-magnetic trip unit delivers protection against overloads and short circuits
• Built-in trip indicator simplifies maintenance and fault identification
• Rated for operation up to 480Y/277 VAC
• Interrupting capacity up to 25 kA at applicable voltage ratings
• Compatible with both copper and aluminum conductors
• HACR and HID rated for HVAC and lighting applications
• Designed for use with compatible Square D NF panelboards
• Supports optional accessories for expanded installation flexibility

Technical Specifications

• Manufacturer: Schneider Electric
  
• Catalog Number: EDB34090
  
• Series: EDB E-Frame (125A Frame)
  
• Product Type: Miniature Circuit Breaker
  
• Device Type: E-Frame
  
• Current Rating: 90 Amps
  
• Poles: 3
  
• Maximum Operating Voltage: 480Y/277 VAC
  
• Trip Unit Technology: Thermal-Magnetic
  
• Trip Unit Rating: 2300 A
  
• Holding Current: 1000 A
  
• Interrupting Ratings:
  • 25 kA @ 120 VAC
  • 25 kA @ 120/240 VAC
  • 25 kA @ 240 VAC
  • 18 kA @ 277 VAC
  • 18 kA @ 480Y/277 VAC
• Mounting Style: Bolt-On
  
• Panelboard Compatibility: Square D NF Panelboards
  
• Wire Range:
  • Copper: 14 AWG–2/0 AWG
  • Aluminum: 12 AWG–2/0 AWG
• Connection Type: Aluminum Lugs
  
• Number of Spaces Required: 3
  
• Breaking Capacity Code: D
  
• Tightening Torque:
  • 34.5 lb-in (3.9 N·m) for 14–10 AWG conductors
  • 49.6 lb-in (5.6 N·m) for 8 AWG–2/0 AWG conductors
• Dimensions:
  • Height: 5.66 in. H
  • Width: 2.94 in. W
  • Depth: 4.05 in. D
• Weight: Approximately 4 lbs.
  

Material Compliance and Certifications

The Schneider Electric EDB34090 is cULus Listed, UL Listed for High-Intensity Discharge (HID) applications, HACR rated, and TAA compliant, demonstrating adherence to recognized North American safety and performance standards. It is calibrated for operation in ambient temperatures up to 40°C (104°F) to help ensure consistent performance under normal operating conditions. Installation should be performed by qualified electrical personnel in accordance with the National Electrical Code (NEC) and all applicable local electrical codes.

Where It Works Best

• Commercial office buildings
• Manufacturing and industrial facilities
• Schools and universities
• Hospitals and healthcare facilities
• Retail stores and shopping centers
• Warehouses and distribution centers
• Government and municipal buildings
• HVAC equipment and air conditioning systems (HACR applications)
• High Intensity Discharge (HID) lighting systems
• Electrical panel upgrades, maintenance, and retrofit projects