EDB34070 - 70 Amp Circuit Breaker

EDB34070 - 70 Amp Circuit Breaker

The Schneider Electric EDB34070 is a high-quality 70 Amp, 3-pole E-Frame circuit breaker engineered to provide dependable overload and short-circuit protection in commercial and industrial electrical distribution systems. Designed for installation in compatible Square D NF panelboards, this bolt-on circuit breaker combines proven thermal-magnetic trip technology with secure mounting to deliver consistent, long-lasting performance. Whether you're replacing an existing breaker or expanding a power distribution system, the EDB34070 helps safeguard electrical equipment while minimizing unnecessary downtime.

Rated for operation up to 480Y/277 VAC, the EDB34070 features interrupting capacities of up to 25 kA at applicable voltage ratings, making it well suited for demanding applications where reliable fault protection is critical. An integrated trip indicator provides immediate visual confirmation when the breaker has tripped, allowing maintenance personnel to identify fault conditions more efficiently.

Key Features and Benefits

• 70 Amp current rating for reliable branch circuit protection
• Three-pole design for three-phase electrical systems
• Bolt-on mounting ensures a secure fit in compatible NF panelboards
• Thermal-magnetic trip unit provides dependable overload and short-circuit protection
• Built-in trip indicator simplifies troubleshooting after a fault
• 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 dependable performance in commercial and industrial installations
• Supports a variety of optional field-installable accessories for added flexibility

Technical Specifications

• Manufacturer: Schneider Electric
  
• Catalog Number: EDB34070
  
• Series: EDB E-Frame (125A Frame)
  
• Product Type: Miniature Circuit Breaker
  
• Device Type: E-Frame
  
• Current Rating: 70 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
  
• 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 EDB34070 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. The breaker is calibrated for operation in ambient temperatures up to 40°C (104°F) to help ensure reliable performance under normal operating conditions. Installation should always be performed by qualified electrical professionals in accordance with the National Electrical Code (NEC) and applicable local regulations.

Where It Works Best

• Commercial office buildings
• Manufacturing and industrial facilities
• Schools and universities
• Healthcare and medical centers
• 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 system upgrades, maintenance, and retrofit projects