NEB1B020B - 20Amp Circuit Breaker

NEB1B020B - 20 Amp Circuit Breaker

If you're trying to match an NEB1B020B circuit breaker already installed in a panelboard, the details matter. This Type NEB molded case breaker is rated at 20 amps and is single-pole, with interrupting ratings of 35k AIC at 277VAC and 85k AIC at 120VAC. It measures approximately 5.5" high by 1.0" wide by 3.0" deep and is designed for panelboard mounting. The breaker is also 40°C and HACR-rated, and it includes load-side terminals. For maintenance and replacement work, those specifications make it easier to compare the NEB1B020B with the breaker already in the equipment. That's especially useful with legacy electrical systems, where getting the correct dimensions, mounting arrangement, pole count, amperage, and interrupting rating is more important than simply finding another 20A breaker. The molded case construction is built to last when properly installed and used within its specified ratings.

Key Features and Benefits

• 20-amp, 1-pole design for applications that call for this specific configuration.
• 35k AIC at 277VAC and 85k AIC at 120VAC interrupting ratings.
• Type NEB molded case construction for compatible electrical equipment.
• Panelboard mount configuration.
• HACR-rated for applications where this designation is required.
• Rated at 40°C.
• Load-side terminals included.
• Compact 5.5" x 1.0" x 3.0" dimensions make it easier to check the physical fit against an existing breaker.
• Well suited to maintenance and replacement situations where matching the original breaker specifications is essential.

Technical Specifications

• Part Number: NEB1B020B
  
• Type: NEB
  
• Breaker Style: Molded Case Circuit Breaker
  
• Amperage: 20A
  
• Poles: 1
  
• AIC Rating: 35k @ 277VAC; 85k @ 120VAC
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Mounting: Panelboard Mount
  
• Load-Side Terminals: Included
  
• Dimensions:
  • Height: 5.5 in.
  • Width: 1.0 in.
  • Depth: 3.0 in.

Material Compliance and Certifications

• Available specifications identify the NEB1B020B as HACR-rated and specify a 40°C rating. No additional material-compliance certifications have been provided for this part, so do not assume them.
• For installations that require a particular certification, listing, or material declaration, confirm the markings on the individual breaker and the equipment requirements before installation.

Where It Works Best

• The NEB1B020B is a natural fit for existing and legacy panelboard applications that were designed around the Type NEB breaker configuration. It can be especially useful during electrical maintenance or replacement work when the goal is to maintain the equipment's original form, fit, and function.
  
• And with a replacement breaker, 20 amps alone doesn't tell the whole story. Check the part number and physical dimensions, then confirm the pole count, voltage, AIC rating, mounting style, and terminal configuration. If those specifications match the existing equipment, the NEB1B020B 20A 1-pole breaker may meet the application's needs.