NEB3B030B - 30Amp Circuit Breaker

NEB3B030B - 30Amp Circuit Breaker

Finding the right breaker for an existing panelboard often comes down to the details. The NEB3B030B is a 30-amp, 3-pole molded-case circuit breaker made for compatible Type NEB panelboard applications. It has an interrupting rating of 35k AIC at 480VAC and 85k AIC at 240VAC, along with a 40°C rating and HACR rating. The breaker measures 5.5 inches high, 3 inches wide, and 3 inches deep, and includes load-side terminals. Those specifications matter most when you're maintaining older electrical equipment and the breaker must match the existing setup, not just provide the same amperage. For electricians, maintenance departments, and facility teams working with compatible NEB equipment, the NEB3B030B provides the familiar form, fit, and function needed for the job. Its molded case construction is straightforward, durable, and built to last in its intended application.

Key Features and Benefits

• 30-amp rating for applications designed around this current rating.
• 3-pole configuration for compatible three-pole electrical systems.
• Type NEB design for equipment that requires this breaker configuration.
• Rated 35 kA icu at 480VAC and 85 kA icu at 240VAC.
• Panelboard-mount design for compatible installations.
• HACR rated for applications that require this rating, with all other specifications matching.
• 40°C rating for its specified operating conditions.
• Load-side terminals included, an important detail when matching existing equipment.
• Measures just 5.5" H x 3.0" W x 3.0" D, making it easy to compare the physical dimensions with the breaker being replaced.
  

Technical Specifications

• Part Number: NEB3B030B
  
• Type: NEB
  
• Breaker Type: Molded Case Circuit Breaker
  
• Amperage: 30A
  
• Poles: 3
  
• AIC Rating: 35k @ 480VAC; 85k @ 240VAC
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Mounting: Panelboard Mount
  
• Height: 5.5 in.
  
• Width: 3.0 in.
  
• Depth: 3.0 in.
  
• Terminals: Load-Side Terminals Included
  

Material Compliance and Certifications

• The NEB3B030B is HACR-rated and rated for 40 °C. The available specifications identify no other material-compliance certifications or agency listings, so do not assume them.
• When using this breaker as a replacement, check more than the amperage alone. Confirm the part number, number of poles, voltage and interrupting ratings, dimensions, mounting arrangement, and the requirements of the panelboard or other equipment before installation.
  

Where It Works Best

• The NEB3B030B circuit breaker is best suited to existing electrical systems and panelboards designed for the Type NEB configuration. It's a practical choice for maintenance and replacement work where matching the original breaker's specifications and physical fit is important.
• This breaker may also be used in compatible heating, air-conditioning, and refrigeration applications that call for an HACR-rated breaker, provided the rest of the electrical specifications match the equipment.
• For replacement work, the key is a proper match. If the application calls for a 30-amp, 3-pole NEB molded case circuit breaker, compare the existing equipment against the NEB3B030B's 35k AIC at 480VAC, 85k AIC at 240VAC, panelboard mounting configuration, and 5.5" x 3" x 3" dimensions. Checking those details helps ensure the breaker has the form, fit, and electrical characteristics the existing system requires.