NEF431020 - 20Amp Circuit Breaker

NEF431020 - 20Amp Circuit Breaker

The NEF431020 3 Pole 20 Amp Molded Case Circuit Breaker is built for protecting three-phase electrical systems in commercial and industrial settings. With thermal magnetic trip protection, it reacts to sustained overloads and also trips instantly during short-circuit conditions. That combination helps protect wiring, connected equipment, and panelboards from damage caused by excess current. This breaker uses a bolt-on mounting design, creating a solid, secure connection to the panel. That matters in real-world applications where electrical systems see constant load changes and daily operation. The NEF frame design makes it a direct replacement option in compatible setups, helping reduce installation time and keeping downtime to a minimum.

Key Features and Benefits

• Thermal magnetic trip unit: Thermal magnetic trip unit for overload and short-circuit protection
• 3-pole configuration: 3-pole configuration for three-phase systems
• 20 amp rating: 20 amp rating for branch circuit protection
• Bolt-on style: Bolt-on style for a firm, stable panel connection
• Interrupting rating: Interrupting rating of 14k AIC at 480VAC and 18k AIC at 240VAC

Technical Specifications

• Model Number: NEF431020
  
• Type: Molded Case Circuit Breaker
  
• Frame Type: NEF
  
• Poles: 3
  
• Amperage Rating: 20A
  
• AIC Rating: 14k @ 480VAC; 18k @ 240VAC
  
• Dimensions: 4.13" W x 6.19" L x 3.38" D
  
• Weight: 6 lbs
  

Material Compliance and Certifications

• The NEF431020 is manufactured to meet recognized industry standards for performance and safety in commercial and industrial power distribution systems.
• When installed properly and used in compatible equipment, it supports code-compliant operation and dependable circuit protection.
  

Where It Works Best

• This 3 pole 20 amp circuit breaker is commonly used in commercial buildings, warehouses, manufacturing facilities, and other properties running three-phase power.
• It’s a practical fit for lighting circuits, small motors, and distribution panels that require reliable 20A overcurrent protection.
• For maintenance teams replacing an existing NEF frame breaker, this model provides a straightforward, compatible solution.