SHLD69300NGT - 300Amp Circuit Breaker

SHLD69300NGT - 300Amp Circuit Breaker

When your electrical system calls for a 300 amp, 3-pole molded case circuit breaker, the SHLD69300NGT delivers the form, fit, and function needed for compatible equipment. Built on the SLD600A frame, this thermal magnetic circuit breaker is designed to provide dependable overcurrent and short-circuit protection in commercial and industrial power distribution systems. With an adjustable trip unit, it gives electricians and maintenance professionals the flexibility to tailor protection settings for the specific application, helping coordinate system protection while maintaining compatibility with existing equipment. The SHLD69300NGT features interrupting ratings of 35kA at 600VAC, 65kA at 480VAC, and 100kA at 240VAC, making it suitable for a wide range of electrical distribution applications. Its adjustable functions—including continuous current, long-time delay, short-time pickup and delay, instantaneous protection, and ground fault settings—allow the breaker to be configured to meet the needs of many installations. Built to last, this molded case circuit breaker is intended as a form, fit, and functional replacement for compatible systems.

Key Features and Benefits

• 300 Amp Molded Case Circuit Breaker: 300 Amp molded case circuit breaker.
• 3-Pole Configuration: 3-pole configuration for three-phase electrical systems.
• SHLD6-A Type: SHLD6-A type.
• SLD600A Frame: SLD600A frame.
• Thermal Magnetic Trip Unit: Thermal magnetic trip unit for overload and short-circuit protection.
• Adjustable Trip Settings: Adjustable trip settings include Continuous Current Setting, Long Time Delay, Instantaneous Setting, Short Time Pickup, Short Time Delay, Short Time I²t Pickup, Ground Fault Pickup, and Ground Fault Delay.
• Interrupting Capacity: 35kA @ 600VAC, 65kA @ 480VAC, and 100kA @ 240VAC.
• Built to Last: Built to last for long-term service in compatible electrical systems.
• Replacement Design: Designed as a form, fit, and functional replacement.
• Lug Terminals: Lug terminals not included.
  

Technical Specifications

• Part Number: SHLD69300NGT
  
• Type: SHLD6-A
  
• Frame: SLD600A
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Trip Unit: Thermal Magnetic
  
• Poles: 3
  
• Amperage: 300A
  
• Interrupting Rating: 35kA @ 600VAC; 65kA @ 480VAC; 100kA @ 240VAC
  
• Adjustable Functions:
  • Continuous Current
  • Long Time Delay
  • Instantaneous
  • Short Time Pickup
  • Short Time Delay
  • Short Time I²t Pickup
  • Ground Fault Pickup
  • Ground Fault Delay
• Dimensions:
  • Height: 11.0 in.
  • Width: 7.5 in.
  • Depth: 4.0 in.
• Lug Terminals: Not Included
  

Material Compliance and Certifications

• Electrical Distribution Systems: The SHLD69300NGT is manufactured for use in electrical power distribution systems and is designed to meet the specifications associated with its frame size, pole configuration, ampere rating, and interrupting capacity.
• Compatibility Verification: Compatibility should always be verified against the equipment manufacturer's requirements, system specifications, and applicable electrical codes before installation.
  

Where It Works Best

• The SHLD69300NGT is commonly used in commercial and industrial facilities where dependable circuit protection is required for three-phase electrical distribution. It is well suited for compatible switchboards, panelboards, motor control equipment, distribution systems, and other applications designed for the SLD600A frame and SHLD6-A configuration. Its adjustable trip functions make it a practical choice for coordinating protection in existing systems while providing the correct form, fit, and function for compatible equipment.