PB31400 - 1400Amp Circuit Breaker

PB31400 - 1400Amp Circuit Breaker

Working on an existing electrical system that calls for a PB31400 circuit breaker? The details are what matter. This Type PB breaker is rated at 1400 amps and uses a 3-pole, 60-cycle AB DE-ION configuration. Its interrupting ratings are 100k AIC at 600VAC, 100k AIC at 480VAC, and 125k AIC at 240VAC, while the magnetic low/high trip settings range from 2500A to 7000A. Physically, the breaker measures approximately 22 inches high by 12 inches wide by 9 inches deep. The PB31400 is well suited to maintenance and replacement work on compatible legacy electrical equipment, particularly when the goal is to keep the original system configuration intact. Instead of relying on amperage alone, compare the part number, breaker type, pole configuration, trip settings, interrupting rating, voltage requirements, and dimensions with the breaker already specified for the equipment. For systems designed around the PB31400, matching those details can help you identify the correct form, fit, and functional replacement. The breaker is built to last when used within its intended application and specified electrical ratings.

Key Features and Benefits

• 1400-amp rating for compatible electrical distribution applications.
• 3-pole configuration for systems designed around this breaker arrangement.
• Type PB design for matching compatible legacy equipment.
• Rated 100k AIC at 600VAC and 480VAC, with a 125k AIC rating at 240VAC.
• 2500A–7000A magnetic low/high trip settings provide an important reference when checking replacement compatibility.
• 60-cycle AB DE-ION circuit breaker configuration.
• Measures 22" H x 12" W x 9" D, making it easier to compare physical dimensions with an existing breaker.
• Useful for maintenance and replacement applications where retaining the required form, fit, and function is important.
• Built to last when correctly applied, installed, and operated within its specified ratings.

Technical Specifications

• Part Number: PB31400
  
• Type: PB
  
• Description: AB DE-ION Circuit Breaker
  
• Amperage: 1400A
  
• Poles: 3
  
• Frequency: 60 cycles
  
• AIC at 600VAC: 100k
  
• AIC at 480VAC: 100k
  
• AIC at 240VAC: 125k
  
• Magnetic Low/High Trip Settings: 2500A–7000A
  
• Dimensions:
  • Height: 22.0 in.
  • Width: 12.0 in.
  • Depth: 9.0 in.

Material Compliance and Certifications

• The available specifications do not include specific material compliance, listing, or certification information for the PB31400. Rather than assume a particular certification applies, check the markings or documentation for the individual breaker when a project has specific regulatory or compliance requirements.
  A qualified electrical professional should also confirm that the breaker meets the electrical codes and equipment requirements for the installation.

Where It Works Best

• The PB31400 makes the most sense in existing electrical equipment designed to use a Type PB, 1400A, 3-pole circuit breaker with corresponding ratings and dimensions. Typical applications include maintenance, repair, and replacement work where the goal is to keep a legacy electrical system in its intended configuration.
• And one important point: 1400 amps alone doesn't determine compatibility. Before installation, compare the PB type, number of poles, voltage and AIC ratings, magnetic trip settings, dimensions, mounting arrangement, and any other equipment-specific requirements with the existing breaker and system documentation. That extra check helps establish whether the PB31400 is the right match for the application.