SHLD69300NT - 300Amp Circuit Breaker

SHLD69300NT - 300Amp Circuit Breaker

When you need a 300 amp, 3-pole molded case circuit breaker that matches the requirements of your existing electrical system, the SHLD69300NT offers the form, fit, and functional compatibility needed for many commercial and industrial applications. Built on the SLD600A frame, this thermal magnetic breaker is designed to provide dependable overload and short-circuit protection while giving installers the flexibility to fine-tune trip settings for the application at hand. One of the standout features of the SHLD69300NT is its adjustable trip unit, allowing qualified personnel to customize settings such as continuous current, long-time delay, short-time pickup, short-time delay, instantaneous protection, and I²t pickup. These adjustments make it easier to coordinate protection within an electrical distribution system while helping reduce unnecessary nuisance trips. Built to last and engineered for compatibility with existing equipment, this breaker is a practical solution for maintaining and servicing electrical systems.

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 protects against overloads and short circuits.
• SLD600A Frame: Built on the SLD600A frame for compatible replacement applications.
• Adjustable Trip Unit: Adjustable trip unit includes Continuous Current Setting, Long Time Delay, Instantaneous Setting, Short Time Pickup, Short Time Delay, and Short Time I²t Pickup.
• Interrupting Ratings: 35kA @ 600VAC, 65kA @ 480VAC, and 100kA @ 240VAC.
• Replacement Design: Designed as a form, fit, and functional replacement in compatible equipment.
• Built to Last: Built to last in demanding commercial and industrial environments.
• Lug Terminals: Lug terminals are not included.
  

Technical Specifications

• Part Number: SHLD69300NT
  
• Type: SHLD6-A
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Frame Size: SLD600A Frame
  
• Trip Type: Thermal Magnetic
  
• Poles: 3
  
• Amperes: 300A
  
• Interrupting Capacity: 35kA @ 600VAC; 65kA @ 480VAC; 100kA @ 240VAC
  
• Adjustable Trip Functions:
  • Continuous Current Setting
  • Long Time Delay
  • Instantaneous Setting
  • Short Time Pickup
  • Short Time Delay
  • Short Time I²t Pickup
• 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 SHLD69300NT is manufactured for use in commercial and industrial electrical distribution systems and is designed to meet the electrical ratings of its product series.
• Installation Requirements: Installation should be performed by qualified personnel in accordance with applicable electrical codes, manufacturer recommendations, and local regulations.
• Compatibility Verification: Always verify system compatibility, interrupting capacity, and application requirements before installation.
  

Where It Works Best

• Commercial facilities
• Manufacturing plants
• Industrial buildings
• Electrical distribution panels
• Switchboards
• Motor control applications
• Equipment requiring a 3-pole, 300 amp thermal magnetic molded case circuit breaker
• Existing systems needing a compatible form, fit, and functional replacement