JTD350 - 350 Amp Fuse

JTD350 - 350 Amp Fuse

A 350-amp rating may be the first thing you notice on the JTD350, but choosing the correct replacement means checking the whole specification. The JTD350 is a 350A Class J time-delay fuse with knife-blade construction and Slo-Blo/Time Lag (T)/Time Delay operation. Part of the JTD Series and POWR-PRO Fuse family, it carries maximum voltage ratings of 600VAC and 500VDC. When you're matching a JTD350 to existing equipment, don't stop at amperage: verify Class J requirements, time-delay operation, AC or DC voltage, applicable interrupting rating, knife-blade construction, non-indicating configuration, and holder compatibility.

Key Features and Benefits

• 350A continuous current rating for equipment specifically requiring a 350-amp fuse
• Class J fuse configuration for installations designed around this fuse class
• Time-delay operation specified as Slo-Blo/Time Lag (T)/Time Delay
• Maximum voltage rating of 600VAC
• Supports equipment requirements up to a maximum of 500VDC
• Knife-blade construction provides a clear physical characteristic to check when identifying a replacement
• Part of the JTD Series
• POWR-PRO Fuse family style
• Non-indicating design
• Compatible mounting method includes a fuse block, clip, or holder
• LFJ60400 Series is the specified PG holder family

Technical Specifications

• Catalog Number: JTD350
  
• Series: JTD
  
• Manufacturer Description: FUS 600V T/D CLASS J 350A
  
• Product Type: Class J Time-Delay 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: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Specified PG Holder: LFJ60400 Series
  

Material Compliance and Certifications

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

Where It Works Best

The JTD350 350A Class J time-delay fuse suits electrical equipment designed for a 350A, Class J, non-indicating, time-delay fuse with matching electrical and physical requirements. For AC service, verify the equipment requirements against the 600VAC maximum rating and the applicable manufacturer-supplied AC interrupting value. For DC service, confirm compatibility with the 500VDC maximum rating and 20 kA interrupting rating at 500VDC.