NEB2B020B - 20 Amp Circuit Breaker

NEB2B020B - 20 Amp Circuit Breaker

When you’re replacing a breaker in an existing panelboard, the details matter. The NEB2B020B is a 20-amp, 2-pole Type NEB molded-case circuit breaker made for compatible panelboard applications. It is rated 35k AIC at 480VAC and 85k AIC at 240VAC, with a 40.25°C rating, and it is HACR rated. The breaker measures approximately 5.5 inches high, 2 inches wide, and 3 inches deep and includes load-side terminals. That combination of size, mounting style, amperage, poles, and interrupting ratings makes the NEB2B020B a practical choice for servicing equipment designed around this specific breaker configuration. For electricians and maintenance teams working with older electrical systems, finding the correct replacement often comes down to matching what is already there. If your equipment calls for an NEB2B020B, this breaker provides the form, fit, and function needed for its intended application. It’s a straightforward, built-to-last component for keeping compatible electrical equipment in service.

Key Features and Benefits

• 20-amp rating for applications designed around this amperage.
• 2-pole configuration for compatible electrical circuits and panelboards.
• Type NEB molded case design for equipment requiring this specific breaker type.
• Panelboard mount configuration.
• Rated 35k AIC at 480VAC and 85k AIC at 240VAC.
• HACR-rated for applications where this rating is required.
• 40.25°C rating.
• Includes load-side terminals for the specified connection arrangement.
• Designed to provide the required form, fit, and function when matched with compatible equipment.

Technical Specifications

• Part Number: NEB2B020B
  
• Product Type: Molded Case Circuit Breaker
  
• Type: NEB
  
• Amperage: 20A
  
• Poles: 2
  
• AIC Rating / Voltage: 35k @ 480VAC; 85k @ 240VAC
  
• Dimensions:
  • Height: 5.5 in.
  • Width: 2.0 in.
  • Depth: 3.0 in.
• Mounting: Panelboard Mount
  
• Temperature Rating: 40.25°C
  
• HACR Rated: Yes
  
• Terminals: Includes Load-Side Terminals
  

Material Compliance and Certifications

• The NEB2B020B is HACR-rated and has a 40.25°C rating. When replacing an existing circuit breaker, check more than the amp rating. The breaker type, number of poles, voltage, AIC rating, dimensions, mounting style, and terminal arrangement must match the equipment requirements.
• Install it in accordance with applicable electrical codes and the requirements of the panelboard or other equipment where the breaker will be installed.

Where It Works Best

• The NEB2B020B is a good fit for maintenance and replacement work involving compatible legacy panelboards and electrical distribution equipment designed for a Type NEB breaker. This is especially useful when the goal is to keep an existing system in service without changing the breaker configuration the equipment was designed to use.
• Before replacing an existing breaker, compare the part number and specifications carefully. Look for the 20 amp rating, 2-pole configuration, NEB type, panelboard mounting, physical dimensions, load-side terminal arrangement, and required AIC rating at the system voltage. Matching these details helps ensure the breaker fits the application and performs the function intended by the equipment design.