NEF431030 - 30Amp Circuit Breaker

NEF431030 - 30Amp Circuit Breaker

The NEF431030 3-Pole 30 Amp Circuit Breaker is designed to provide dependable overcurrent protection in commercial and industrial electrical systems. Built for three-phase applications, this thermal magnetic breaker helps protect wiring and connected equipment from damage caused by overloads and short circuits. If you're replacing an existing NEF frame breaker or performing panel maintenance, this model offers a straightforward solution that fits and performs the way it should. Its bolt-on design creates a secure connection to the panelboard bus, helping ensure stable operation over time.

Instead of complicated features you don’t need, the NEF431030 focuses on what matters most — consistent protection, proper fit, and reliable performance in demanding environments. With solid molded case construction and strong interrupting ratings, it’s built to handle real-world electrical conditions in facilities where downtime simply isn’t an option.

Key Features and Benefits

• Thermal magnetic trip mechanism for accurate overload and short-circuit protection
• 3-pole, 30 amp rating for three-phase power distribution
• Bolt-on mounting for a secure and stable installation
• Molded case construction designed for long service life
• Rated 14k A.I.C. at 480VAC and 18k A.I.C. at 240VAC

Technical Specifications

• Model: NEF431030
• Poles: 3
• Amperage: 30A
• Voltage Rating: Up to 480VAC
• Interrupting Capacity:
  • 14k @ 480VAC
  • 18k @ 240VAC
• Frame Type: NEF
• Mounting Style: Bolt-On
• Dimensions:
  • Width: 4.13"
  • Length: 6.19"
  • Depth: 3.38"
• Approximate Shipping Weight: 6 lbs

Material Compliance and Certifications

• This molded case circuit breaker is manufactured to meet applicable industry safety and performance standards. It is designed for use in properly rated electrical distribution equipment and supports compliance with standard electrical code requirements when installed correctly.

Where It Works Best

• The NEF431030 works well in commercial buildings, industrial facilities, and other locations that rely on three-phase electrical distribution. It’s a practical choice for panelboard upgrades, maintenance replacements, or restoring proper protection to an existing system. Electricians and maintenance professionals often choose this breaker when they need compatibility, reliable fault protection, and a secure bolt-on connection without unnecessary complexity.