PBF31000 1000 Amp Circuit Breaker

PBF31000  1000 Amp Circuit Breaker

Need to match a PBF31000 circuit breaker already used in an existing electrical system? Start with the ratings and physical configuration. The PBF31000 is a Type PBF, 3-pole AB DE-ION® circuit breaker rated at 1000 amps. It is intended for 60-cycle AC applications and has interrupting ratings of 100k AIC at 600VAC, 100k AIC at 480VAC, and 125k AIC at 240VAC. Its magnetic low/high trip settings range from 1500A to 5000A.

Physical fit matters as much as the electrical ratings, particularly when you're working with legacy equipment. The PBF31000 measures approximately 22 inches high, 12 inches wide, and 9 inches deep. Before installation, check those dimensions, along with the pole count, amperage, voltage, interrupting rating, and trip range, against the existing breaker and equipment specifications. For systems designed around this particular PBF breaker, the goal is simple: match the required form, fit, and function as closely as possible. This is a built-to-last breaker for compatible electrical equipment that requires PBF31000 specifications.

Key Features and Benefits

• 1000 amp rating for compatible applications that call for a 1000A breaker.
• Three-pole configuration for equipment designed around this arrangement.
• Type PBF, AB DE-ION® circuit breaker construction.
• Rated 100 kAIC at 600VAC and 100 kAIC at 480VAC.
• Rated 125 kAIC at 240VAC.
• 1500A to 5000A magnetic low/high trip setting range.
• Designed for 60-cycle (60 Hz) AC systems.
• Measures approximately 22"H x 12"W x 9"D, providing clear dimensions for checking physical fit.
• Well suited to maintenance situations where the existing equipment requires the specific characteristics of a PBF31000 breaker.

Technical Specifications

• Part Number: PBF31000
  
• Type: PBF
  
• Breaker Type: AB DE-ION® Circuit Breaker
  
• Poles: 3
  
• Amperage: 1000A
  
• AIC @ 600VAC: 100k
  
• AIC @ 480VAC: 100k
  
• AIC @ 240VAC: 125k
  
• Frequency: 60 cycles / 60 Hz
  
• Magnetic Low/High Trip Settings: 1500A–5000A
  
• Height: 22.0 in.
  
• Width: 12.0 in.
  
• Depth: 9.0 in.
  

Material Compliance and Certifications

• Material-compliance details and specific certification or listing information were not provided for the PBF31000. Rather than assume certifications, confirm these details using the breaker labeling, equipment documentation, and the requirements for the particular installation.
• Applicable codes and requirements can vary by location and application. A qualified electrical professional should confirm compatibility and compliance before installing the breaker or placing it into service.

Where It Works Best

• The PBF31000 makes the most sense in compatible legacy electrical equipment that was designed to use a Type PBF circuit breaker with these ratings and dimensions. That may include established industrial and commercial electrical systems where maintaining the original equipment configuration is important.
  
• When checking compatibility, don't rely on the 1000A rating alone. Review the full specification: PBF type, three poles, voltage, AIC rating, 60 Hz frequency, 1500A–5000A magnetic trip range, and physical dimensions. The existing equipment documentation and breaker identification should agree with the replacement being considered.
  
• For the right application, the PBF31000 maintains what already works—providing the required form, fit, and electrical function for compatible legacy equipment without unnecessary system changes.