NEB1B030B - 30Amp Circuit Breaker

NEB1B030B - 30 Amp Circuit Breaker

When an existing panelboard calls for a specific breaker, matching the details is important. The NEB1B030B is a 30-amp, 1-pole Type NEB molded-case circuit breaker made for panelboard-mounted applications. It measures 5.5 inches high, 1.0 inch wide, and 3.0 inches deep, giving you clear dimensions to compare with the breaker already in your equipment. Electrically, the NEB1B030B is rated 35k AIC at 277VAC and 85k AIC at 120VAC. It is also HACR-rated at 40°C and comes with load-side terminals. This breaker is especially useful when servicing compatible legacy equipment where changing the original panelboard setup isn't the goal—you need the correct form, fit, and ratings for the application. Built to last and made for its intended Type NEB application, the NEB1B030B is a straightforward choice for maintenance and replacement work when its specifications match the existing system.

Key Features and Benefits

• 30-amp, 1-pole design for electrical systems requiring this specific configuration.
• Type NEB molded case construction for compatible panelboard applications.
• Rated 35k AIC at 277VAC and 85k AIC at 120VAC.
• Panelboard mount configuration makes it suitable for equipment designed around this breaker style.
• Measures 5.5" H x 1.0" W x 3.0" D, making it easier to confirm the physical fit before installation.
• HACR-rated for applicable heating, air-conditioning, and refrigeration circuit applications.
• 40°C rated to match applications calling for this temperature specification.
• Load-side terminals included as part of the breaker configuration.
• Well suited to maintaining compatible legacy electrical systems where the existing setup needs to be preserved.
• Built to last when properly installed and operated within the stated ratings.

Technical Specifications

• Part Number: NEB1B030B
  
• Type: NEB
  
• Breaker Type: Molded Case Circuit Breaker
  
• Amperage: 30 Amps
  
• Poles: 1
  
• A.I.C. Rating & Volts: 35k @ 277VAC; 85k @ 120VAC
  
• Mounting: Panelboard Mount
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 5.5 in.
  • Width: 1.0 in.
  • Depth: 3.0 in.
• Terminals: Includes Load-Side Terminals
  

Material Compliance and Certifications

• The NEB1B030B is HACR rated and carries a 40°C temperature rating. The available specifications provide no other material compliance, environmental certification, or certification details, so do not assume additional certifications. For jobs with specific compliance requirements, check the equipment documentation and applicable project requirements before installation.

Where It Works Best

• The NEB1B030B makes the most sense in compatible panelboards and existing electrical systems designed for a 30 amp, single-pole Type NEB breaker with these ratings and dimensions. This is especially relevant for maintenance and replacement jobs where keeping the original equipment configuration matters.
  
• Before replacing an existing breaker, compare more than the amperage alone. Check the part number, number of poles, voltage, AIC rating, physical dimensions, mounting style, and terminal requirements against the existing equipment. When those details match the NEB1B030B, you have a much clearer picture of whether it's the right fit for the application.