ED63B125 - 125Amp Circuit Breaker

ED63B125 - 125 Amp Circuit Breaker

The ED63B125 molded case circuit breaker delivers dependable circuit protection for commercial and industrial electrical systems that demand consistent performance under load. Built in the trusted Sentron style and designed on the ED6 frame platform, this 125 amp, 3-pole breaker is engineered to handle high fault conditions while maintaining system stability. With strong interrupting ratings—up to 18kA at 600VAC and 65kA at 240VAC—it provides the level of protection professionals expect when safeguarding equipment, panels, and downstream components. Its bolt-on mounting ensures a secure installation, while included load-side terminals help streamline setup and reduce installation time.

Designed for versatility, the ED63B125 is HACR rated and suitable for reverse feed applications, making it a practical choice for HVAC systems, distribution panels, and a wide range of demanding environments. Operating at 40°C, it performs reliably in typical field conditions without compromise. Whether you're upgrading an existing panel or maintaining critical infrastructure, this breaker offers the confidence and performance you need to keep operations running smoothly.

Key Features and Benefits

• 125 amp, 3-pole configuration: for reliable three-phase protection
• High interrupting capacity: up to 18kA @ 600VAC, 25kA @ 480VAC, and 65kA @ 240VAC
• Bolt-on design: ensures secure, stable installation
• Includes load-side terminals: for faster, more efficient setup
• HACR rated: for heating, air conditioning, and refrigeration applications
• Suitable for reverse feed use: adding installation flexibility
• Built on the proven Sentron ED6 frame platform

Technical Specifications

• Part Number: ED63B125
  
• Amperage: 125A
  
• Poles: 3
  
• Frame Type: ED6
  
• Interrupting Rating:
  • 18kA @ 600VAC
  • 25kA @ 480VAC
  • 65kA @ 240VAC
• Mounting Type: Bolt-On
  
• Operating Temperature: 40°C
  
• Weight: 3.0 lbs
  
• Dimensions (Height): 6.35 inches
  
• Terminal Type: Load-side terminals included
  
• Special Features: HACR rated, reverse feed capable
  

Material Compliance and Certifications

• Manufactured to meet industry standards for molded case circuit breakers
• HACR (Heating, Air Conditioning, and Refrigeration) rated: for HVAC system protection
• Designed for safe operation within standard electrical distribution environments

Where It Works Best

• The ED63B125 is well-suited for commercial buildings, industrial facilities, and HVAC systems where dependable circuit protection is essential. It performs especially well in panelboards and distribution systems that require high interrupting capacity and flexible installation options. Ideal for electricians, maintenance teams, and facility managers who need a breaker that installs easily and holds up under demanding electrical loads.