KLPC350 - 350Amp Fuse

KLPC350 - 350Amp Fuse

When you're replacing a high-amperage Class L fuse, the number on the label is only part of the match. The KLPC350 is a 350A Class L time-delay, current-limiting fuse with a 600VAC maximum rating, 480VDC maximum rating, and bolt-in construction. For anyone checking a KLPC350 as a replacement, that makes comparison more straightforward—but verify the 350A rating, Class L configuration, voltage, interrupting requirements, opening characteristic, and bolt-in mounting against the equipment specifications.

Key Features and Benefits

• 350A continuous current rating for equipment specifically designed around this Class L fuse rating.
• Handles applications rated up to 600VAC.
• Supports compatible DC equipment up to 480VDC.
• The time-delay opening characteristic provides a different operating profile than a fast-acting fuse.
• The KLPC series provides a minimum 10-second time delay at 500% of rated current, according to the manufacturer.
• Current-limiting design is a defining performance characteristic of the KLPC series.
• Class L configuration gives buyers a critical specification to check when replacing an existing fuse.
• Bolt-in construction and mounting provide a clearly identified physical format for compatibility checks.
• Match the non-indicating design when the equipment or replacement specification calls for this configuration.

Technical Specifications

• Catalog Number: KLPC350
  
• Manufacturer Description: FUS 600V T/D CLASS L 350A
  
• Series: KLPC
  
• Product Type: Time-Delay, Current-Limiting Fuse
  
• Family Style: POWR-PRO Fuse
  
• Continuous Current Rating: 350A
  
• Maximum AC Voltage: 600VAC
  
• Maximum DC Voltage: 480VDC
  
• AC Interrupting Value 1: 200,000A at 600VAC
  
• AC Interrupting Value 2: 300,000A at 600VAC
  
• DC Interrupting Rating: 20,000A at 480VDC
  
• Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
  
• Specified Series Time Delay: Minimum 10 seconds at 500% of rated current
  
• Fuse Class: Class L
  
• Current-Limiting: Yes
  
• Construction / Size: Bolt-In
  
• Mounting Method: Bolt-In
  
• Indicating: No
  
• Fuse-Link Material: 99.9% pure silver
  
• End Bell Material: Silver-plated copper
  
• Body Material: Glass-reinforced melamine
  
• Sealing: O-ring seals between body and end bells
  
• Filler: Granular quartz
  

Material Compliance and Certifications

The manufacturer identifies the KLPC series as UL Listed Class L fuses and states that the series provides a minimum 10-second time delay at 500% of rated current while maintaining its current-limiting characteristics. The supplied information does not provide an individual UL listing number for the KLPC350, so do not assume a catalog-specific listing number.

Where It Works Best

The KLPC350 350A Class L fuse suits electrical equipment designed for a 350A, time-delay, current-limiting Class L fuse with bolt-in mounting. The manufacturer describes the broader KLPC family as providing overcurrent protection for circuits ranging from 200 through 6000 amperes, with the KLPC350 providing the specific 350A configuration covered here.

For AC equipment, verify the installation against the 350A continuous current rating, 600VAC maximum voltage, applicable AC interrupting requirement, Class L configuration, time-delay characteristic, and bolt-in mounting. For DC equipment, confirm compatibility with the 480VDC maximum voltage and 20,000A interrupting rating at 480VDC.