EF2B050 - 50Amp Circuit Breaker

EF2B050 - 50 Amp Circuit Breaker

When you’re maintaining an existing electrical system, the last thing you want is guesswork. The EF2B050 molded case circuit breaker gives you a straightforward, dependable replacement that fits right into EF2 frame setups without unnecessary complications. With a 50-amp rating and a 2-pole configuration, it’s designed to handle everyday protection needs—helping guard your equipment against overloads and short circuits while keeping your system operating as intended. What makes this breaker especially practical is its balance of size, rating, and compatibility. It delivers interrupting capacities of 14k A.I.C. at both 600VAC and 480VAC, along with 18k A.I.C. at 240VAC, making it suitable for a wide range of commercial and industrial applications. Built for operation at 40°C, it’s made to handle typical working conditions without issue. If you’re working with older panelboards or distribution equipment, this breaker offers a reliable, form-fit-function solution that keeps your setup consistent and compliant with its original design.

Key Features and Benefits

• 50 Amp rating: 50 Amp rating for consistent circuit protection in everyday applications
• 2-pole configuration: 2-pole configuration ideal for multi-phase electrical systems
• Interrupting capacity: Interrupting capacity up to 14k A.I.C. at 600VAC and 480VAC, and 18k A.I.C. at 240VAC
• EF2 frame type: EF2 frame type ensures proper fit with compatible panels and enclosures
• Molded case design: Molded case design built to last and withstand regular use
• 40°C rating: Rated for operation at 40°C, suitable for standard environments
• Simple replacement: Simple, no-hassle replacement for maintaining existing systems

Technical Specifications

• Part Number: EF2B050
  
• Poles: 2
  
• Amperes: 50A
  
• Frame Type: EF2
  
• A.I.C. Rating & Voltage:
  • 14k @ 600VAC
  • 14k @ 480VAC
  • 18k @ 240VAC
• Operating Temperature: 40°C
  
• Breaker Type: Molded Case Circuit Breaker
  
• Shipping Weight/Dimensions: 3.0 lbs, 6.0” height
  

Material Compliance and Certifications

• Industry Standards: The EF2B050 is produced to meet established industry standards for molded case circuit breakers. It is intended for use in systems that follow recognized electrical safety requirements. Always verify installation compliance with local codes and application-specific standards.

Where It Works Best

• The EF2B050 is a solid choice for commercial buildings, industrial facilities, and institutional environments where EF2 frame breakers are already installed. It works well in panelboards and distribution systems that require a 50-amp, 2-pole breaker with defined interrupting ratings. If your goal is to keep an existing system running safely and efficiently without changing its design, this breaker fits right in.