NGB2B100B - 100 Amp Circuit Breaker

NGB2B100B - 100 Amp Circuit Breaker

Need an NGB2B100B circuit breaker for an existing panelboard? This 100-amp, 2-pole molded-case circuit breaker is an NGB Type breaker designed for panelboard mounting. It measures 5.0 inches high, 2.0 inches wide, and 3.06 inches deep, which is useful when you're checking an existing installation for the correct fit. Electrically, the NGB2B100B is rated 25k AIC at 480VAC and 100k AIC at 240VAC. It is also HACR-rated, has a 40.25°C rating, and comes with load-side terminals. For maintenance or replacement work, the big advantage is that it is straightforward: you can compare the part number, size, amperage, poles, mounting style, and electrical ratings against the breaker already in the equipment. When those specifications match the panelboard requirements, the NGB2B100B provides the form, fit, and function needed for the application. Its molded case construction is built to last when the breaker is correctly applied and operated within its specified ratings.

Key Features and Benefits

• 100 amp rating for applications that require a 100A breaker.
• 2-pole design for compatible two-pole circuits.
• NGB Type configuration for matching compatible NGB panelboard applications.
• Rated 25k AIC at 480VAC and 100k AIC at 240VAC.
• Panelboard mount configuration.
• HACR rated for applications where this rating is required.
• Load-side terminals included as part of the breaker configuration.
• Compact 5.0" H x 2.0" W x 3.06" D dimensions make it easier to compare the physical size with an existing breaker.

Technical Specifications

• Part Number: NGB2B100B
  
• Type: NGB
  
• Breaker Type: Molded Case Circuit Breaker
  
• Amperage: 100 Amps
  
• Poles: 2
  
• A.I.C. Rating & Volts: 25k @ 480VAC; 100k @ 240VAC
  
• Mounting: Panelboard Mount
  
• Height: 5.0 in.
  
• Width: 2.0 in.
  
• Depth: 3.06 in.
  
• Temperature Rating: 40.25°C
  
• HACR Rated: Yes
  
• Load-Side Terminals: Included
  

Material Compliance and Certifications

• The NGB2B100B is HACR rated. No other material compliance information or third-party certifications were provided in the available specifications, so do not assume additional certifications. Always check equipment and installation requirements when a particular listing, certification, or material standard is required.
  

Where It Works Best

• The NGB2B100B is intended for compatible panelboards and legacy electrical equipment that call for an NGB Type 100-amp, 2-pole molded case circuit breaker with these specific ratings and dimensions. It's especially relevant when you're maintaining existing equipment and need to match the breaker already specified for the system.
• Before using it as a replacement, check more than amperage. Compare the part number, breaker type, poles, voltage, AIC rating, dimensions, mounting style, terminals, and panelboard requirements. A careful match helps ensure the breaker has the correct form, fit, and function for the intended installation.