RJF36080U31A - 800Amp Circuit Breaker

RJF36080U31A - 800Amp Circuit Breaker

When your electrical system demands dependable protection for high-capacity applications, the RJF36080U31A PowerPact® circuit breaker is built to deliver. Designed with an 800-amp rating and a 3-pole configuration, this PowerPact® R-Frame molded case circuit breaker helps protect valuable electrical equipment from overloads and short circuits while keeping your power distribution system operating efficiently. What makes this breaker stand out is its Micrologic® interchangeable ammeter electronic trip unit (Code 3.0A). Instead of relying on traditional thermal-magnetic technology, the electronic trip unit provides more precise protection with Long Time and Instantaneous trip functions. That means better control over your electrical system and improved protection for feeders, switchboards, and other critical equipment. Built for operation at 40°C with an 80% continuous current rating, the RJF36080U31A is well-suited for demanding commercial and industrial environments. It also offers impressive interrupting capabilities—25 kA at 600 VAC, 65 kA at 480 VAC, and 100 kA at 240 VAC—helping safeguard electrical systems during fault conditions. Whether you're replacing an existing breaker or maintaining a facility's electrical infrastructure, this model provides the performance professionals expect in high-power applications.

Key Features and Benefits

• 800 Amp Current Rating: 800 Amp current rating for demanding electrical distribution systems.
• 3-Pole Design: 3-pole design for three-phase applications.
• PowerPact® R-Frame: PowerPact® R-Frame molded case circuit breaker.
• Micrologic® Electronic Trip Unit: Micrologic® interchangeable ammeter electronic trip unit (Code 3.0A).
• Protection Functions: Long-time and Instantaneous protection functions for dependable overcurrent protection.
• 80% Rated: 80% rated for continuous operation at 40°C.
• High Interrupting Capacity:
  • 25kA @ 600VAC
  • 65kA @ 480VAC
  • 100kA @ 240VAC
• Equipment Protection: Helps protect electrical equipment from overloads and short-circuit conditions.
• Long-Term Reliability: Designed for long-term reliability in demanding commercial and industrial environments.
  

Technical Specifications

• Part Number: RJF36080U31A
  
• Type: RJF
  
• Product Family: PowerPact® R-Frame
  
• Poles: 3
  
• Amperage: 800A
  
• Rated Temperature: 40°C
  
• Continuous Rating: 80% Rated
  
• Trip Unit: Micrologic® Interchangeable Ammeter Electronic Trip Unit (Code 3.0A)
  
• Protection Functions: Long Time, Instantaneous
  
• Interrupting Capacity: 25kA @ 600VAC; 65kA @ 480VAC; 100kA @ 240VAC
  
• Dimensions:
  • Height: 16.54 in.
  • Width: 16.24 in.
  • Depth: 6.63 in.

Material Compliance and Certifications

• Industry Standards: The RJF36080U31A is manufactured to meet applicable industry standards for molded case circuit breakers used in commercial and industrial electrical systems.
• Installation Requirements: Always confirm compatibility with your equipment and ensure installation complies with applicable electrical codes and manufacturer recommendations.
  

Where It Works Best

• The RJF36080U31A is an excellent choice anywhere dependable, high-capacity circuit protection is essential. It's commonly used in:
  • Industrial manufacturing facilities
  • Commercial office buildings
  • Data centers
  • Healthcare facilities
  • Educational campuses
  • Water and wastewater treatment plants
  • Distribution panels
  • Switchboards
  • Large feeder circuits
  • Critical power distribution systems
  Whether you're maintaining an existing electrical system or upgrading your facility's power distribution equipment, the RJF36080U31A offers the combination of capacity, electronic trip protection, and interrupting performance needed to help keep operations running safely and reliably.