MJL36800 - 800 Amp Circuit Breaker

MJL36800 - 800 Amp Circuit Breaker

For the MJL36800, the important details go well beyond the 800 amp rating. This is an 800A, 3-pole circuit breaker rated for 600VAC at 50/60Hz, using an ET 1.0 basic electronic trip unit and an 80% continuous current rating. It comes with line and load lugs and uses an ABC phase connection. Together, these electrical ratings, trip characteristics, connections, and dimensions make the MJL36800 easier to evaluate for your compatible electrical distribution equipment where an exact form, fit, and functional match matters. Its solid construction is built to last when correctly selected, installed, and maintained for its intended electrical application.

Key Features and Benefits

• 800A, 3-Pole Configuration: Gives buyers a clear starting point when matching the MJL36800 to compatible electrical distribution equipment.
• ET 1.0 Electronic Trip Unit: The basic electronic trip design includes a 300–800A long-time pickup adjustment range.
• Magnetic Tripping Current: Specified at 1,600–8,000A, providing another important characteristic to compare with system requirements.
• Line and Load Lugs Included: The stated electrical connection includes lugs on both sides of the breaker.
• Aluminum/Copper Conductor Capability: AL800M23K terminals are specified for 3 x 3/0 AWG through 3 x 500 kcmil aluminum/copper conductors.
• 80% Continuous Current Rating: A clearly stated rating that can be checked as part of the overall application requirements.
• Integral Push-to-Trip: The breaker includes a push-to-trip button for manually tripping the device.

Technical Specifications

• Catalog Number: MJL36800
  
• Product Type: Circuit Breaker
  
• Device Application: Distribution
  
• Rated Current: 800A
  
• Number of Poles: 3
  
• Phase Connection: ABC
  
• Rated Operational Voltage: 600VAC, 50/60Hz, UL 489
  
• Network Frequency: 50/60Hz
  
• Breaking Capacity Code: J
  
• UL 489 AIR: 100kA @ 240VAC; 65kA @ 480VAC; 25kA @ 600VAC
  
• IEC 60947-2 Icu: 65kA @ 240VAC; 50kA @ 380/415VAC
  
• IEC 60947-2 Ics: 35kA @ 240VAC; 25kA @ 380/415VAC
  
• Trip Unit: ET 1.0
  
• Trip Unit Technology: Basic Electronic
  
• Long-Time Pickup Adjustment Range: 300–800A
  
• Magnetic Tripping Current: 1,600–8,000A
  
• Continuous Current Rating: 80%
  
• Rated Impulse Withstand Voltage (Uimp): 8kV, IEC 60947-2
  
• Rated Insulation Voltage (Ui): 750V, IEC 60947-2
  
• Electrical Connection: Lugs, Line and Load
  
• Circuit Breaker Application: HACR Rated
  
• Height: 12.86 in (326.64 mm)
  
• Width: 8.27 in (210.06 mm)
  
• Depth: 8.05 in (204.47 mm)
  
• Net Weight: 29 lb (13.2 kg)
  

Material Compliance and Certifications

The MJL36800 circuit breaker has documented UL, CSA, and NOM product certifications and carries a CE quality label. Listed standards include UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2. The supplied specifications also identify an IP40 degree of protection, Pollution Degree 3 per IEC 60947-1, and an HACR-rated application.

Where It Works Best

The MJL36800 800 amp circuit breaker suits compatible electrical distribution equipment that requires its specific combination of 800A current rating, three poles, 600VAC operation, ET 1.0 electronic trip technology, and line-and-load lug connections. Its published conductor range, interrupting ratings, and physical dimensions also make it easier to perform the detailed checks needed for existing or legacy equipment.