NGH312036E - 1200Amp Circuit Breaker

NGH312036E - 1200Amp Circuit Breaker

The NGH312036E is a 3-pole, 1200-amp NGH electronic molded-case circuit breaker designed to provide dependable overcurrent and ground-fault protection in your demanding commercial and industrial electrical distribution systems. Built with an N-Frame design and thermal magnetic operating characteristics, this breaker combines high interrupting performance with advanced electronic trip functions to help you protect valuable electrical equipment and minimize unnecessary downtime. Featuring independently adjustable short-time pickup and delay settings, along with ground fault protection, the NGH312036E gives maintenance professionals greater flexibility when coordinating protective devices across complex power systems. Its non-interchangeable trip unit offers a fixed configuration for applications where a dedicated protection setup is preferred. Please note that the catalog number does not include a rating plug or lug terminals; these components can be selected separately when required for installation.

Key Features and Benefits

• 1200 Amp Continuous Current Rating: 1200-amp continuous current rating for high-capacity power distribution applications.
• 3-Pole Configuration: 3-pole configuration for protecting three-phase electrical systems.
• N-Frame Design: N-Frame molded case circuit breaker design for dependable circuit protection.
• Electronic Trip Unit: Electronic trip unit with non-interchangeable trip units for dedicated protection settings.
• Adjustable Short-Time Functions: Independently adjustable short-time pickup and delay functions help improve system coordination.
• Ground Fault Protection: Integrated ground fault protection helps safeguard equipment and reduce the risk of electrical damage.
• HACR Rated: HACR rated for use in heating, air conditioning, and refrigeration applications where applicable.
• High Interrupting Capacity: High interrupting capacity rated for:
  • 35kA at 600VAC
  • 65kA at 480VAC
  • 100kA at 240VAC
• Thermal Magnetic Operating Design: Thermal magnetic operating design provides dependable overcurrent protection.
• Rating Plug and Lug Terminals: Rating plug and lug terminals are not included with the catalog number.
  

Technical Specifications

• Part Number: NGH312036E
  
• Type: NGH
  
• Frame: N-Frame
  
• Circuit Breaker Type: Electronic Molded Case Circuit Breaker
  
• Trip Unit: Non-Interchangeable
  
• Poles: 3
  
• Current Rating: 1200 Amps
  
• Interrupting Rating:
  • 35kA @ 600VAC
  • 65kA @ 480VAC
  • 100kA @ 240VAC
• Protection Functions:
  • Independently Adjustable Short-Time Pickup
  • Independently Adjustable Short-Time Delay
  • Ground Fault Protection
• HACR Rated: Yes
  
• Operating Technology: Thermal Magnetic
  
• Dimensions:
  • Height: 16.0 in.
  • Width: 8.25 in.
  • Depth: 5.5 in.

Material Compliance and Certifications

• HACR Rating: The NGH312036E is HACR rated, making it suitable for qualifying heating, air conditioning, and refrigeration equipment applications.
• Construction: Its molded case construction and electronic protection functions are designed to support reliable operation in commercial and industrial electrical systems.
• Installation Requirements: As with any electrical protection device, installation should be performed in accordance with applicable electrical codes, manufacturer requirements, and project specifications.
  

Where It Works Best

• The NGH312036E is an excellent choice for commercial buildings, manufacturing facilities, industrial plants, data centers, institutional campuses, and large electrical distribution systems that require high-amperage circuit protection with adjustable trip settings. Its combination of electronic protection features, high interrupting ratings, and integrated ground-fault protection makes it well-suited for protecting feeders, switchboards, panelboards, motor distribution equipment, and other critical power infrastructure where dependable performance and selective coordination are important.