NEF431020R - 20Amp Circuit Breaker

NEF431020R - 20Amp Circuit Breaker

The NEF431020R 20 amp circuit breaker is a 3-pole molded case breaker built for commercial and industrial electrical systems that require steady, dependable protection. Designed with a thermal magnetic trip mechanism, it helps guard against overloads and short circuits—two of the most common causes of equipment damage and downtime. The built-in rotary handle makes operation simple and controlled, which is especially helpful in maintenance settings where clear on/off indication and ease of use are important. With its bolt-on design and solid construction, the NEF431020R fits securely into compatible panelboards and distribution equipment operating at 240V and 480V AC.

Key Features and Benefits

• 20 Amp, 3-Pole Design: Suitable for three-phase power distribution systems.
• Thermal Magnetic Protection: Responds to both sustained overloads and instantaneous short circuits.
• Rotary Handle: Provides straightforward switching and clear operational control.
• Bolt-On Mounting: Creates a secure, stable connection within approved electrical assemblies.
• Interrupting Capacity: Rated 14k AIC at 480VAC and 18k AIC at 240VAC.

Technical Specifications

• Part Number: NEF431020R
  
• Amperage: 20A
  
• Poles: 3
  
• Voltage Rating: Up to 480VAC
  
• AIC Rating: 14k @ 480VAC; 18k @ 240VAC
  
• Frame Type: NEF
  
• Trip Type: Thermal Magnetic
  
• Mounting Style: Bolt-On
  
• Dimensions:
  • Width: 4.13 inches
  • Length: 6.19 inches
  • Depth: 3.38 inches
• Weight: 6.50 lbs
  

Material Compliance and Certifications

• Industry Standards: Manufactured to meet recognized industry standards, the NEF431020R is built for use in commercial and industrial electrical systems that require code-compliant overcurrent protection.
• Performance Reliability: It is designed to perform reliably under typical operating conditions found in professional installations.
  

Where It Works Best

• This breaker is commonly used in commercial facilities, industrial buildings, and maintenance applications where a 20 amp, 3-pole breaker with rotary control is needed. It works well in panelboards and distribution systems that require consistent circuit protection and secure bolt-on installation. If you’re maintaining or replacing equipment in an existing electrical system, the NEF431020R offers a practical, straightforward solution.