JTD400-ID - 400 Amp Fuse

JTD400-ID - 400 Amp Fuse

When your equipment calls for a 400A indicating Class J fuse, matching the amperage is only part of the job. The JTD400-ID—identified by the manufacturer as JTD400ID—is a 400-amp Class J time-delay fuse with knife-blade construction and an indicating design. For replacement selection, compare the complete set of electrical and physical specifications with your equipment requirements, including Class J configuration, time-delay characteristic, voltage, interrupting requirements, indicating status, knife-blade construction, and holder compatibility.

Key Features and Benefits

• 400A continuous current rating for equipment requiring a 400-amp fuse
• Class J configuration provides an important specification for correct replacement matching
• Time-delay operation, identified as Slo-Blo/Time Lag (T)/Time Delay
• Indicating design distinguishes the JTD400-ID from a non-indicating configuration
• Rated for a maximum of 600VAC
• Maximum DC voltage rating of 500VDC
• Knife-blade construction gives buyers another physical characteristic to confirm when replacing an existing fuse
• Part of the JTD_ID Series
• Identified within the POWR-PRO Fuse family
• LFJ60400 Series is specified as the PG holder

Technical Specifications

• Catalog Number: JTD400-ID
  
• Manufacturer Catalog Reference: JTD400ID
  
• Series: JTD_ID
  
• Manufacturer Description: FUS 600V T/D CLASS J 400A INDICATING
  
• Product Type: Class J Time-Delay Indicating Fuse
  
• Continuous Current Rating: 400A
  
• 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 JTD400-ID/JTD400ID electrical ratings, Class J designation, time-delay opening characteristic, knife-blade construction, indicating status, mounting method, and specified holder series.

Where It Works Best

The JTD400-ID 400A Class J time-delay indicating fuse is suited to electrical equipment designed for a 400A Class J indicating knife-blade fuse with the corresponding time-delay characteristics. In AC service, confirm that the equipment requirements fall within the 600VAC maximum rating and match the applicable manufacturer-supplied AC interrupting value. For DC service, verify compatibility with the 500VDC maximum voltage and 20 kA interrupting rating at 500VDC.