NCLR300 - 300Amp Fuse

NCLR300 - 300Amp Fuse

The NCLR300 is a 300-amp, 600 VAC Class R fuse for applications that require time-delay and current-limiting protection. With a 200 kA A.I.C. rating at 600 VAC, it can handle high available fault currents when properly applied. The time-delay design also allows short periods of higher current, such as during equipment startup, without sacrificing the fuse's primary overcurrent protection function.

This is a cartridge-style, non-indicating fuse measuring 8.63 inches high, 2 inches wide, and 2 inches deep. If you're replacing an existing NCLR300, check those dimensions, along with the amperage, voltage, fuse class, and interrupting rating, before installation. It's a simple step that can save you from ending up with a fuse that doesn't match the equipment requirements.

Key Features and Benefits

• 300 amp rating for equipment requiring a 300A fuse
• 600 VAC rating for compatible AC electrical systems
• 200 kA A.I.C. at 600 VAC for high fault-current applications
• Time-delay design helps accommodate temporary startup and inrush currents
• Current-limiting Class R construction helps limit fault current
• Cartridge style for use with the appropriate fuse holder
• Non-indicating design without a visual blown-fuse indicator
• Measures 8.63" H × 2.0" W × 2.0" D

Technical Specifications

• Type: NCLR
  
• Fuse Class: Class R
  
• Amperage: 300 A
  
• Voltage: 600 VAC
  
• A.I.C. Rating: 200 kA @ 600 VAC
  
• Operation: Time-Delay
  
• Current Limiting: Yes
  
• Style: Cartridge
  
• Indication: Non-Indicating
  
• Dimensions:
  • Height: 8.63 in.
  • Width: 2.0 in.
  • Depth: 2.0 in.

Material Compliance and Certifications

The supplied specifications identify the NCLR300 as a Class R, time-delay, current-limiting fuse. The supplied specifications do not include specific agency certifications, listing numbers, or material or environmental compliance information. Confirm these details in the applicable manufacturer documentation when required for installation.

Where It Works Best

The NCLR300 300 amp fuse fits applications that require a Class R, 600 VAC time-delay fuse with a 200 kA interrupting rating. The time-delay characteristic can help equipment that experiences a brief current increase during startup.

For replacement applications, compare more than just the 300 A rating. Before installing the NCLR300, check the voltage, Class R designation, A.I.C. rating, physical dimensions, and time-delay requirements against the existing fuse and equipment specifications.