JTD350-ID - 350 Amp Fuse

JTD350-ID - 350 Amp Fuse

When your equipment calls for a 350A indicating Class J fuse, the details beyond amperage are just as important as the number on the label. The JTD350-ID (manufacturer catalog reference JTD350ID) is a 350-amp, time-delay fuse from the JTD_ID Series, built with knife-blade construction and an indicating design. Its opening characteristic is specified as Slo-Blo/Time Lag (T)/Time Delay, with maximum voltage ratings of 600VAC and 500VDC. The fuse is part of the POWR-PRO Fuse family and mounts in a compatible fuse block, clip, or holder; the LFJ60400 Series is the PG holder. For replacement work, matching the JTD350-ID means checking the fuse class, time-delay characteristic, voltage and interrupting requirements, physical construction, and indicating configuration—not simply finding another fuse marked 350A.

Key Features and Benefits

• 350A continuous current rating for equipment specifically requiring a 350-amp fuse
• Class J configuration for systems designed around Class J fuse requirements
• Time-delay operation, specified as Slo-Blo/Time Lag (T)/Time Delay
• Indicating design provides an important identifying feature when matching the required fuse configuration
• Rated for a maximum of 600VAC
• Maximum DC voltage rating of 500VDC
• Knife-blade construction gives you another physical specification to confirm before replacement.
• Part of the JTD_ID Series
• Identified within the POWR-PRO Fuse family
• LFJ60400 Series is the specified PG holder family

Technical Specifications

• Catalog Number: JTD350-ID
  
• Manufacturer Catalog Reference: JTD350ID
  
• Series: JTD_ID
  
• Manufacturer Description: FUS 600V T/D CLASS J 350A INDICATING
  
• Product Type: Class J Time-Delay Indicating Fuse
  
• Continuous Current Rating: 350A
  
• 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 PG Holder: LFJ60400 Series
  

Material Compliance and Certifications

The supplied product information confirms the JTD350-ID's 350A continuous current rating, Class J designation, time-delay opening characteristic, 600VAC and 500VDC maximum ratings, interrupting values, knife-blade construction, indicating configuration, and mounting information.

Where It Works Best

The JTD350-ID 350A Class J time-delay indicating fuse suits electrical equipment designed for a 350A Class J fuse with time-delay operation, an indicating configuration, and matching knife-blade construction. For AC service, confirm the equipment requirements against the 600VAC maximum voltage 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.