JTD300-ID - 300 Amp Fuse

JTD300-ID - 300 Amp Fuse

When your equipment calls for a 300A indicating Class J time-delay fuse, the details beyond amperage matter. The JTD300-ID—manufacturer catalog reference JTD300ID—is a 300-amp fuse from the JTD_ID Series with Slo-Blo/Time Lag (T)/Time Delay operation, knife-blade construction, and an indicating design. For a replacement, check the full specification rather than relying on "300A" alone: fuse class, time-delay characteristic, AC or DC voltage, applicable interrupting rating, indicating status, knife-blade format, and mounting compatibility must match the equipment requirements.

Key Features and Benefits

• 300A continuous current rating for equipment specified for a 300-amp fuse
• Class J fuse configuration
• Indicating design provides the indicating feature specified for JTD300ID
• Time-delay operation identified as Slo-Blo/Time Lag (T)/Time Delay
• Rated for a maximum of 600VAC
• Maximum 500VDC rating
• Knife-blade construction gives you another important physical specification to verify during replacement
• Part of the JTD_ID Series
• POWR-PRO Fuse family style
• Mounts with a compatible fuse block, clip, or holder
• LFJ60400 Series is the specified holder family

Technical Specifications

• Catalog Number: JTD300-ID
  
• Manufacturer Catalog Reference: JTD300ID
  
• Series: JTD_ID
  
• Manufacturer Description: FUS 600V T/D CLASS J 300A INDICATING
  
• Product Type: Class J Time-Delay Indicating Fuse
  
• Continuous Current Rating: 300A
  
• Maximum AC Voltage: 600VAC
  
• Maximum DC Voltage: 500VDC
  
• AC Interrupting Value 1: 200,000A at 600VAC
  
• AC Interrupting Value 2: 300,000A at 600VAC
  
• DC Interrupting Rating: 20,000A at 500VDC
  
• Published Interrupting Rating: 20 kA at 500VDC
  
• Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
  
• Fuse Class: Class J
  
• Family Style: POWR-PRO Fuse
  
• Construction / Size: Knife-Blade
  
• Indicating: Yes
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Specified Holder Series: LFJ60400 Series
  

Material Compliance and Certifications

The supplied product information confirms the JTD300-ID's 300A continuous current rating, Class J designation, time-delay opening characteristic, AC and DC voltage ratings, interrupting values, indicating status, knife-blade construction, and mounting information.

Where It Works Best

The JTD300-ID suits electrical equipment designed for a 300A Class J time-delay indicating fuse with matching voltage, interrupting, physical, and mounting requirements. For AC service, confirm the equipment requirements against the 600VAC maximum rating and the applicable manufacturer-supplied AC interrupting value. For DC service, verify compatibility with the 500VDC maximum rating and 20 kA interrupting rating at 500VDC.