EDB34040 - 40 Amp Circuit Breaker

EDB34040 - 40 Amp Circuit Breaker

The Schneider Electric EDB34040 is a dependable 40 Amp, 3-pole E-Frame circuit breaker engineered to provide reliable overload and short-circuit protection for commercial and industrial electrical distribution systems. Specifically designed for installation in compatible Square D NF panelboards, this bolt-on molded case circuit breaker combines proven thermal-magnetic trip technology with durable construction to help protect valuable electrical equipment while minimizing unexpected downtime. Whether you're replacing an existing breaker or upgrading a panelboard, the EDB34040 offers the performance and compatibility electricians, contractors, and facility managers rely on for demanding applications.

Key Features and Benefits

• 40 Amp current rating for dependable branch circuit protection.
• Three-pole configuration for three-phase electrical systems.
• Bolt-on mounting ensures a secure installation in compatible NF panelboards.
• Thermal-magnetic trip unit protects against overloads and short circuits.
• Built-in trip indicator allows for quick fault identification.
• Rated for systems 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 lighting and HVAC applications.
• Designed for consistent, long-term performance in commercial and industrial environments.
  

Technical Specifications

• Manufacturer: Schneider Electric
  
• Catalog Number: EDB34040
  
• Series: EDB E-Frame (125A Frame)
  
• Product Type: Molded Case Circuit Breaker
  
• Current Rating: 40 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.
  • Width: 2.94 in.
  • Depth: 4.05 in.
• Weight: Approximately 4 lbs.
  

Material Compliance and Certifications

• The Schneider Electric EDB34040 is cULus Listed, UL Listed for High-Intensity Discharge (HID) applications, HACR-rated, and TAA-compliant. It is calibrated for operation in ambient temperatures up to 40°C (104°F) and is manufactured to meet recognized industry standards for safety, quality, and performance. Installation should be completed by qualified electrical personnel in accordance with the National Electrical Code (NEC) and applicable local regulations.
• When installed in accordance with electrical codes, you can be confident that this unit meets expected construction and compliance benchmarks.
  

Where It Works Best

• Commercial office buildings
• Manufacturing and industrial facilities
• Healthcare and medical centers
• Educational campuses and schools
• Retail stores and shopping centers
• Warehouses and distribution facilities
• Government and municipal buildings
• HVAC and air conditioning equipment (HACR applications)
• High Intensity Discharge (HID) lighting systems
• Electrical maintenance, renovation, and retrofit projects