NEB3B020B - 20Amp Circuit Breaker

NEB3B020B - 20Amp Circuit Breaker

Need an NEB3B020B circuit breaker for an existing panelboard? This 20A, 3-pole molded case circuit breaker is designed for applications that call for the NEB configuration and matching electrical specifications. It has an interrupting rating of 35 kA.I.C. at 480VAC and 85 kA.I.C. at 240VAC, along with a 40°C rating and HACR rating. This panelboard-mounted breaker includes load-side terminals. At 5.5 inches high, 3 inches wide, and 3 inches deep, it also gives you clear dimensions to check against the breaker you're replacing. That's especially useful when you're maintaining an older electrical system, where matching the original breaker isn't as simple as finding the same amperage. Pole count, mounting style, interrupting rating, dimensions, and terminal configuration must all match. When your equipment specifically requires an NEB3B020B 20-amp breaker, this unit provides the form, fit, and function needed for the intended application. Its molded case construction is built to last when properly installed, maintained, and operated within its specified ratings.

Key Features and Benefits

• 20-amp, 3-pole design for compatible three-pole circuit applications.
• NEB configuration for equipment requiring this specific breaker type.
• Panelboard mount for use with compatible panelboard installations.
• Rated 35k A.I.C. at 480VAC and 85k A.I.C. at 240VAC.
• 40°C rated for applications that match this temperature specification.
• HACR rated for applicable heating, air-conditioning, and refrigeration circuits.
• Load-side terminals included as part of the breaker configuration.
• A practical choice for legacy electrical equipment when you need to maintain the original form, fit, and electrical specifications.
• Molded-case construction built to last under the specified operating conditions.
  

Technical Specifications

• Part Number: NEB3B020B
  
• Type: NEB
  
• Product Type: Molded Case Circuit Breaker
  
• Amperage: 20A
  
• Poles: 3
  
• A.I.C. Rating: 35k @ 480VAC; 85k @ 240VAC
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Mounting: Panelboard Mount
  
• Load-Side Terminals: Included
  
• Height: 5.5 in.
  
• Width: 3.0 in.
  
• Depth: 3.0 in.
  

Material Compliance and Certifications

• The NEB3B020B is specified as HACR-rated and carries a 40°C rating. Its published electrical specifications include interrupting ratings of 35 kA I.C. at 480VAC and 85 kA I.C. at 240VAC.
• The available specifications did not include other material compliance or certification details, so do not assume additional certifications. Before installation, check the breaker requirements for your specific panelboard and application.
  

Where It Works Best

• The NEB3B020B makes the most sense in existing or legacy panelboard installations that require this particular NEB breaker configuration. It's especially useful for maintenance and replacement work where you want to preserve the electrical system's intended setup rather than change its design.
• One thing worth checking carefully: 20 amps and three poles alone don't establish compatibility. Confirm the part number, mounting method, dimensions, voltage, interrupting rating, terminal arrangement, and other application requirements against the breaker being replaced and the equipment documentation.