PJA36080U44A - 800Amp Circuit Breaker

PJA36080U44A - 800Amp Circuit Breaker

Need an 800-amp circuit breaker for a commercial or industrial electrical system? The PJA36080U44A is a 3-pole, Type PJA molded case circuit breaker designed for high-current power distribution applications. It is rated 800A and has a 65kA interrupting Rating at 480VAC, giving it the capacity to handle demanding electrical systems where higher available fault currents are a concern. This breaker also uses a MicroLogic 6.0 A electronic trip unit with LSIG protection, covering long-time, short-time, instantaneous, and ground-fault protection. Its I-Line configuration is intended for compatible panelboard and switchboard applications. For replacement work, the details matter, so don't rely on amperage alone. Compare the part number, pole count, voltage, interrupting Rating, trip unit, mounting style, and physical dimensions with the breaker you're replacing or your equipment specifications.

Key Features and Benefits

• 800A Rating for high-current commercial and industrial electrical applications.
• Three-pole configuration for compatible three-phase systems.
• 65kA A.I.C. at 480VAC provides substantial fault-current interrupting capability.
• MicroLogic 6.0 A electronic trip unit provides LSIG protection functions.
• The trip system incorporates long-time, short-time, instantaneous, and ground-fault protection.
• I-Line configuration for use with compatible I-Line electrical distribution equipment.
• A practical option for replacement, maintenance, retrofit, and equipment-upgrade projects when the required specifications match.

Technical Specifications

• Part Number: PJA36080U44A
  
• Type: PJA
  
• Product Type: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperage: 800A
  
• A.I.C. Rating: 65kA at 480VAC
  
• Maximum Rated Operational Voltage: 600VAC
  
• Interrupting Rating at 600VAC: 25kA
  
• Frequency: 50/60 Hz
  
• Trip Unit: MicroLogic 6.0 A Electronic
  
• Protection: LSIG
  
• Continuous Current Rating: 80%
  
• Mounting / Connection: I-Line
  
• Height: 12.86 in.
  
• Width: 8.27 in.
  
• Depth: 8.05 in.
  

Material Compliance and Certifications

• Manufacturer documentation identifies the PJA36080U44A with applicable UL 489, CSA/NMX, and IEC standards and certifications. These standards cover the safety and performance requirements for this type of circuit breaker.
• Certification requirements aren't necessarily the same for every job. Before installation, confirm that the breaker's ratings and certifications meet the electrical codes, equipment requirements, and specifications for the particular project.

Where It Works Best

• The PJA36080U44A circuit breaker makes sense in commercial and industrial applications that specifically call for an 800A, 3-pole PJA breaker with a 65kA interrupting Rating at 480VAC. That can include compatible I-Line panelboards and switchboards, as well as other electrical distribution applications that require this particular configuration.
• It's also a useful choice when you're replacing an existing breaker and need to match the original equipment closely. An 800A rating by itself doesn't tell the whole story. Check the voltage, number of poles, A.I.C. rating, trip unit, mounting configuration, dimensions, and equipment compatibility before matching.
• For facilities dealing with substantial electrical loads, the combination of an 800A rating and electronic LSIG protection gives the PJA36080U44A the protection capabilities needed for demanding power-distribution applications.