MJA36800 - 800 Amp Circuit Breaker

MJA36800 - 800 Amp Circuit Breaker

Boost your system’s protection with the MJA36800 800A circuit breaker from Schneider Electric’s PowerPacT M line. With a 3-pole configuration and a 600 V AC rating (50/60 Hz), this heavy-duty breaker provides reliable protection against faults and overloads in demanding industrial power systems. The advanced ET 1.0 electronic trip unit enhances safety by tailoring responses to overcurrent conditions—helping you minimize downtime and maintain a dependable electrical environment.

Key Features and Benefits

• High current capability: With an 800 A rating, this breaker handles substantial loads—ideal for power-hungry installations.
• Precise protection: The built-in ET 1.0 trip unit monitors current continuously and reacts quickly to overloads and short circuits.
• Simplified installation: Thanks to I-Line construction (line-side) and mechanical lugs (load-side), wiring and retrofit integration are streamlined.
• Future-ready design: Scalable upgrade paths let you adapt as your facility’s power demands evolve—no need to replace the whole unit.
• Efficient performance: It offers high interrupting capacity, minimizes operational risk, and supports a safer electrical infrastructure.

Technical Specifications

• Rated Current: 800 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 600 V AC, 50/60 Hz
  
• Interrupting Capacity:
  • 25 kA @ 600 V AC
  • 65 kA @ 480 V AC
  • 100 kA @ 240 V AC (per UL 489)
• Trip Unit: ET 1.0 (electronic trip)
  
• Connections: I-Line terminations (line side); mechanical lugs (load side)
  
• Dimensions:
  • Height: 12.86″
  • Width: 8.27″
  • Depth: 8.05″
• Weight: ~29 lbs
  

Material Compliance and Certifications

• Standards compliance: UL, CSA, NOM certifications, and adherence to IEC 60947-2
• CE marked: For use in European markets.
• RoHS / REACH compliant: Limited hazardous substances
• Green Premium label: Showing alignment with sustainability and eco-responsible manufacturing.

Where It Works Best

• The MJA36800 800A breaker is an excellent fit where reliability and power control matter most. Use it in:
• Industrial plants handling heavy machinery or large motors
• Data centers require uninterrupted protection
• Large infrastructure projects with high power demands
• Commercial facilities with critical electrical zones