NEF421015 - 15Amp Circuit Breaker

NEF421015 - 15Amp Circuit Breaker

The NEF421015 15 amp 2-pole circuit breaker protects commercial and industrial electrical systems from overloads and short circuits. Designed for NEF frame panelboards, this molded case circuit breaker uses a thermal magnetic trip unit to detect sustained overcurrent conditions and respond instantly to short circuits. It helps prevent damage to wiring and connected equipment while supporting safe, consistent system performance. The bolt-on mounting style allows electricians to secure the breaker firmly into place, making it a reliable choice for replacing an existing breaker in a compatible panel.

Key Features and Benefits

• Delivers 15 amp branch circuit protection for commercial and industrial applications
• Uses a two-pole configuration for 240V and 480V systems
• Combines thermal and magnetic tripping to handle overloads and short circuits
• Secures firmly with a bolt-on mounting design
• Interrupts fault currents up to 14kA at 480VAC and 18kA at 240VAC
• Features a durable molded case built for demanding environments

Technical Specifications

• Model Number: NEF421015
  
• Amperage: 15A
  
• Number of Poles: 2
  
• Maximum Voltage: 480VAC
  
• Interrupting Capacity:
  • 14kA @ 480VAC
  • 18kA @ 240VAC
• Frame Type: NEF
  
• Trip Unit Type: Thermal Magnetic
  
• Mounting Type: Bolt-On
  
• Dimensions:
  • 2.75" W
  • 6.19" L
  • 3.38" D
• Weight: 4.5 lbs
  

Material Compliance and Certifications

• Manufacturers build the NEF421015 to meet recognized industry standards for molded case circuit breakers used in commercial and industrial power distribution.
• When installers follow applicable electrical codes and rated specifications, this breaker supports safe and compliant operation.

Where It Works Best

• Use the NEF421015 as a direct replacement in existing NEF frame panelboards.
• Maintenance teams and electricians rely on it in office buildings, retail centers, and light industrial facilities where matching the original system design matters.
• When you need a 15 amp, two-pole bolt-on circuit breaker that fits properly and performs as expected, this model gets the job done.