JTD250-ID - 250 Amp Fuse

JTD250-ID - 250 Amp Fuse

When your equipment calls for an indicating 250A Class J time-delay fuse, the details beyond amperage matter. The JTD250-ID—manufacturer catalog reference JTD250ID—is a 250-amp fuse from the JTD_ID Series, with Slo-Blo/Time Lag (T)/Time Delay operation and knife-blade construction. Rather than matching on “250A” alone, confirm the Class J requirement, time-delay characteristic, voltage and interrupting ratings, indicating design, physical configuration, and holder requirements against the equipment specifications.

Key Features and Benefits

• 250A continuous current rating for equipment specified for a 250-amp fuse
• Class J fuse configuration for applications requiring this particular fuse class
• Indicating design provides the specified indicating configuration
• Slo-Blo/Time Lag (T)/Time Delay opening characteristic
• Rated for a maximum of 600VAC
• Also rated for a maximum of 500VDC
• Knife-blade construction gives you another important physical detail to verify during replacement
• Part of the JTD_ID Series
• Identified within the POWR-PRO Fuse family
• Specified for mounting in a fuse block, clip, or holder
• LFJ60400 Series is the specified holder family

Technical Specifications

• Catalog Number: JTD250-ID
  
• Manufacturer Catalog Reference: JTD250ID
  
• Series: JTD_ID
  
• Manufacturer Description: FUS 600V T/D CLASS J 250A INDICATING
  
• Product Type: Class J Time-Delay Indicating Fuse
  
• Continuous Current Rating: 250A
  
• 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 JTD250-ID/JTD250ID electrical ratings, Class J designation, time-delay opening characteristic, indicating status, knife-blade construction, mounting method, and holder series described above.

Where It Works Best

The JTD250-ID suits electrical equipment designed for a 250A Class J time-delay indicating fuse with corresponding electrical and physical requirements. For AC equipment, confirm compatibility with the 600VAC maximum rating and the applicable manufacturer-supplied AC interrupting value. For DC equipment, verify the 500VDC maximum rating and 20 kA interrupting rating at 500VDC against the equipment requirements.