NEB1B025B - 25Amp Circuit Breaker

NEB1B025B - 25 Amp Circuit Breaker

When you're replacing a breaker in an existing panelboard, the details matter. The NEB1B025B is a 25-amp, 1-pole molded-case circuit breaker made for compatible panelboard applications that require an NEB-type breaker. It is rated 35k AIC at 277VAC and 85k AIC at 120VAC, with a 40°C rating and HACR rating. The breaker measures 5.5 inches high, 1 inch wide, and 3 inches deep and includes load-side terminals. Those specifications make it easier to compare the NEB1B025B with an existing breaker and confirm the required form, fit, and electrical ratings. For older and legacy electrical equipment in particular, checking the complete specification is important—amperage alone doesn't determine compatibility. When properly matched to the equipment, installed correctly, and maintained as required, this molded case circuit breaker is built to last.

Key Features and Benefits

• 25-amp, 1-pole design for compatible single-pole applications.
• NEB type for equipment designed around this breaker configuration.
• Rated 35 kA at 277VAC and 85 kA at 120VAC.
• Panelboard mount configuration for compatible electrical equipment.
• HACR-rated and rated for 40°C.
• Includes load-side terminals.
• Compact dimensions of 5.5" H x 1.0" W x 3.0" D help when checking physical fit.
• Well suited to maintenance and replacement situations where matching the existing breaker specifications is essential.

Technical Specifications

• Part Number: NEB1B025B
  
• Type: NEB
  
• Breaker Type: Molded Case Circuit Breaker
  
• Amperage: 25 Amps
  
• Poles: 1
  
• AIC Rating & Voltage: 35k @ 277VAC; 85k @ 120VAC
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Mounting: Panelboard Mount
  
• Dimensions:
  • Height: 5.5 in.
  • Width: 1.0 in.
  • Depth: 3.0 in.
• Terminals: Load-Side Terminals Included
  

Material Compliance and Certifications

• The NEB1B025B circuit breaker is specified as HACR-rated and carries a 40°C rating. Its stated interrupting ratings are 35k AIC at 277VAC and 85k AIC at 120VAC.
• No other material-compliance certifications or regulatory listings are identified in the available specifications. If a particular approval or certification is required for the installation, confirm it from the breaker markings and applicable equipment documentation.

Where It Works Best

• The NEB1B025B is a good fit for existing and legacy panelboard systems that specifically require its NEB configuration, 25 amp rating, single pole, dimensions, mounting style, and electrical ratings. This is especially useful for replacement and maintenance work where correct form and fit matter.
  
• Before replacing an existing breaker, compare more than the amperage. Check the part number, breaker type, number of poles, voltage, AIC rating, dimensions, mounting arrangement, and terminal configuration. Matching these details helps determine whether the NEB1B025B is appropriate for the equipment.
  
• As with any circuit breaker replacement, qualified electrical personnel should confirm compatibility and installation, and complete the work in accordance with the equipment requirements and applicable electrical codes.