EF3B015 - 15 Amp Circuit Breaker

EF3B015 - 15 Amp Circuit Breaker

If you’re maintaining an existing electrical system and need a breaker that fits right the first time, the EF3B015 circuit breaker is a straightforward, no-nonsense solution. Designed on the EF3 frame, this 3-pole, 15-amp molded case circuit breaker is built to match the footprint and performance expectations of compatible legacy panels. It delivers dependable circuit protection across multiple voltage levels, helping safeguard equipment and minimize downtime. Whether you're handling routine maintenance or replacing a failed unit, this breaker is made to slide into place without forcing changes to your setup—keeping things simple, efficient, and reliable.

Key Features and Benefits

• Exact-fit replacement for EF3 frame systems—no need for modifications
• 3-pole design supports three-phase power distribution
• 15-amp capacity for precise branch circuit protection
• Versatile voltage ratings for use in a range of commercial and industrial setups
• Molded case construction helps maintain insulation integrity and safety
• Rated for 40°C ambient environments, aligning with standard operating conditions
• Built to last, making it a dependable choice for ongoing system maintenance

Technical Specifications

• Part Number: EF3B015
  
• Poles: 3
  
• Amperage: 15A
  
• Frame Type: EF3
  
• A.I.C. Rating:
  • 14k @ 600VAC
  • 14k @ 480VAC
  • 18k @ 240VAC
• Operating Temperature: 40°C
  
• Breaker Type: Molded Case Circuit Breaker
  
• Approximate Shipping Dimensions:
  • Height: 6.0 inches
  • Weight: 4.5 lbs

Material Compliance and Certifications

• The EF3B015 molded case circuit breaker is manufactured to meet recognized industry standards for electrical safety and performance.
• It is intended for use in systems that follow National Electrical Code (NEC) guidelines and other applicable regulations.
• Always verify compatibility with your equipment and local codes to ensure proper installation.

Where It Works Best

• This circuit breaker is a practical fit for commercial facilities, industrial environments, and older distribution systems that rely on EF3 frame components. You’ll often find it used in panelboards, lighting systems, and motor control applications where a 3-pole, 15-amp breaker is required. It’s especially useful when maintaining or restoring existing infrastructure without redesigning the entire system.