ED63B045L - 45Amp Circuit Breaker

ED63B045L - 45 Amp Circuit Breaker

The ED63B045L is a dependable 45-amp, 3-pole molded case circuit breaker designed for protecting three-phase electrical systems in commercial and light industrial setups. Built on the ED6 frame platform, it’s a solid choice when you need consistent performance without overcomplicating the install. Whether you're replacing an existing breaker or working on a new panel, this unit fits in easily and does exactly what it’s supposed to do—protect your equipment and keep things running safely. This breaker handles fault conditions with confidence, offering interrupting ratings up to 18kA at 600VAC, 25kA at 480VAC, and 65kA at 240VAC. It’s also HACR rated, so it’s commonly used in HVAC-related applications. You’ll find installation straightforward thanks to included line and load-side terminals, and the reverse feed capability gives you a bit more flexibility depending on how your system is set up. Overall, it’s a practical, workhorse-style breaker that electricians and maintenance teams rely on.

Key Features and Benefits

• 45 amp, 3-pole configuration for three-phase systems
• High interrupting capacity for handling fault conditions safely
• ED6 frame design for broad compatibility
• HACR rated for HVAC and refrigeration equipment
• Line and load-side terminals included for easier installation
• Reverse feed capable for added installation flexibility
• Designed for standard 40°C operating environments

Technical Specifications

• Part Number: ED63B045L
  
• Amperage: 45A
  
• Poles: 3
  
• Frame Type: ED6
  
• Interrupting Rating:
  • 18kA @ 600VAC
  • 25kA @ 480VAC
  • 65kA @ 240VAC
• Temperature Rating: 40°C
  
• Breaker Type: Molded Case Circuit Breaker (MCCB), Sentron Style
  
• Terminals: Line and Load Included
  
• Reverse Feed: Yes
  
• Weight: 3.0 lbs
  
• Height: 6.35 inches
  

Material Compliance and Certifications

• This breaker is built to meet standard U.S. electrical safety expectations and is HACR rated, making it suitable for heating, air conditioning, and refrigeration systems. It aligns with commonly accepted industry requirements for molded case circuit breakers used in commercial and industrial environments.

Where It Works Best

• Commercial buildings and tenant spaces
• Industrial equipment and control panels
• HVAC and refrigeration systems
• Panel upgrades or breaker replacements using ED6 frame units
• Maintenance stock for electricians and facility teams