EDB34045 - 45 Amp Circuit Breaker

EDB34045 - 45 Amp Circuit Breaker

The Schneider Electric EDB34045 is a high-performance 45 Amp, 3-pole E-Frame circuit breaker designed to provide dependable overload and short-circuit protection in commercial and industrial electrical distribution systems. Engineered for use in compatible Square D NF panelboards, this bolt-on molded-case circuit breaker features proven thermal-magnetic trip technology that responds quickly to sustained overloads and fault conditions, helping safeguard electrical equipment and maintain system reliability. Whether you're replacing an existing breaker or installing new branch circuit protection, the EDB34045 delivers the consistent performance professionals expect in demanding applications.

Key Features and Benefits

• 45 Amp current rating for reliable branch circuit protection
• Three-pole configuration designed for three-phase electrical systems
• Bolt-on mounting provides a secure installation in compatible NF panelboards
• Thermal-magnetic trip unit delivers dependable overload and short-circuit protection
• Built-in trip indicator allows for quick identification of tripped circuits
• 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
• HID and HACR rated for specialized lighting and HVAC applications
• Designed for long-lasting performance in demanding commercial and industrial environments

Technical Specifications

• Manufacturer: Schneider Electric
  
• Catalog Number: EDB34045
  
• Series: EDB E-Frame (125A Frame)
  
• Product Type: Molded Case Circuit Breaker
  
• Current Rating: 45 Amps
  
• Poles: 3
  
• Maximum Operating Voltage: 480Y/277 VAC
  
• Trip Unit Technology: Thermal-Magnetic
  
• Trip Unit Rating: 1800 A
  
• Holding Current: 630 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
  
• 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 EDB34045 is cULus Listed, UL Listed for High-Intensity Discharge (HID) applications, HACR rated, and TAA compliant, helping to ensure it meets recognized safety and performance standards for commercial electrical installations. It is calibrated for operation at ambient temperatures up to 40°C (104°F) and is manufactured to deliver dependable protection in accordance with industry requirements. Installation should always 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
• Industrial manufacturing facilities
• Healthcare and medical centers
• Schools and universities
• Retail stores and shopping centers
• Warehouses and distribution facilities
• Government and municipal buildings
• HVAC equipment and air conditioning systems (HACR applications)
• High Intensity Discharge (HID) lighting systems
• Electrical maintenance, modernization, and retrofit projects