SHLD69300G - 300Amp Circuit Breaker

SHLD69300G - 300Amp Circuit Breaker

When your electrical system requires dependable 300-amp circuit protection, the SHLD69300G molded case circuit breaker delivers the ratings and adjustable protection features needed for many commercial and industrial applications. Built on the SLD600A frame, this 3-pole thermal magnetic circuit breaker is designed to provide a form, fit, and functional replacement for compatible equipment already in service. Its adjustable trip unit allows electricians and maintenance professionals to tailor protection settings to the needs of the installation, making it easier to coordinate system protection while helping guard against overloads, short circuits, and ground faults. The SHLD69300G includes adjustable settings for continuous current, long-time delay, instantaneous trip, ground fault pickup, and ground fault delay, giving users greater flexibility when configuring protection for connected equipment. With interrupting capacities rated at 35kA at 600VAC, 65kA at 480VAC, and 100kA at 240VAC, this breaker is well suited for demanding power distribution systems found in manufacturing facilities, commercial buildings, institutional properties, and other industrial environments. Built to last, it offers a dependable solution for maintaining existing electrical systems without changing equipment layouts or mounting configurations.

Key Features and Benefits

• 300 Amp Current Rating: 300 Amp current rating for commercial and industrial power distribution.
• Three-Pole Design: Three-pole design for three-phase electrical systems.
• Thermal Magnetic Trip Mechanism: Thermal magnetic trip mechanism helps protect against overloads and short circuits.
• Adjustable Trip Unit: Adjustable trip unit includes Continuous Current Setting, Long Time Delay, Instantaneous Setting, Ground Fault Pick Up, and Ground Fault Delay.
• SLD600A Frame: SLD600A frame for compatibility with designated equipment.
• Interrupting Ratings: 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 for compatible legacy installations.
• Lug Terminals: Lug terminals are not included.
  

Technical Specifications

• Part Number: SHLD69300G
  
• Type: SHLD6-A
  
• Frame Size: SLD600A Frame
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Trip Unit: Thermal Magnetic
  
• Poles: 3
  
• Amperage: 300 Amps
  
• Interrupting Rating: 35kA @ 600VAC; 65kA @ 480VAC; 100kA @ 240VAC
  
• Adjustable Functions: Continuous Current Setting, Long Time Delay, Instantaneous Setting, Ground Fault Pick Up, Ground Fault Delay
  
• Dimensions:
  • Height: 11.0 in.
  • Width: 7.5 in.
  • Depth: 4.0 in.
• Lug Terminals: Not Included
  

Material Compliance and Certifications

• Commercial and Industrial Use: Manufactured for use in commercial and industrial electrical distribution systems.
• SHLD6-A Platform: Designed to meet the electrical ratings and performance characteristics associated with the SHLD6-A platform.
• Interrupting Capacities: Interrupting capacities are specified for 240VAC, 480VAC, and 600VAC applications.
• Installation Requirements: Installation should be performed in accordance with applicable electrical codes and manufacturer recommendations.
  

Where It Works Best

• The SHLD69300G is commonly installed in commercial facilities, manufacturing plants, industrial operations, institutional buildings, and other large electrical distribution systems where a 300 Amp, 3-pole molded case circuit breaker is required. Its adjustable protection settings make it a practical choice for applications that require coordinated overcurrent and ground fault protection while maintaining compatibility with existing SLD600A frame equipment. Whether you're replacing a breaker during routine maintenance or restoring service to an existing panel, this unit is intended to match the form, fit, and function of compatible legacy installations.