LPJ-125SP - 125 Amp Fuse

LPJ-125SP - 125 Amp Fuse

The Eaton Bussmann series LPJ-125SP is a 125A Class J time-delay, current-limiting fuse designed for your compatible commercial and industrial electrical equipment, including applications that require accommodating temporary motor inrush current without sacrificing specified overcurrent protection characteristics. Rated 600VAC and 300VDC, the LPJ-125SP has an interrupting rating of 300 kAIC at 600VAC and 100 kAIC at 300VDCat 300VDC. Its dual-element construction and 10-second response time at 500% of rated current are key characteristics when matching this fuse to an electrical system's requirements.

Key Features and Benefits

• 125A Class J fuse: Designed for compatible electrical systems requiring a 125-amp Class J fuse with the specified characteristics.
• AC and DC voltage ratings: Rated for 600VAC and 300VDC, providing clearly defined application limits for compatibility checks.
• Time-delay operation: The time-delay characteristic is particularly useful in compatible circuits where temporary inrush currents occur during normal equipment startup.
• High inrush current motor protection: Eaton specifically identifies the LPJ-125SP for applications involving high inrush current motor protection.
• Dual-element construction: Uses two elements as part of its specified time-delay fuse design.
• 10-second response at 500%: Eaton specifies a response time of 10 seconds at 500% of rated current.
• Bolted blade connections: Features a bolted blade-to-bolted blade configuration for compatible fuse holders and equipment.
• Non-indicating design: The LPJ-125SP does not incorporate a built-in fuse-status indicator.

Technical Specifications

• Manufacturer: Eaton
  
• Product Family: Bussmann Series
  
• Product Name: Eaton Bussmann Series LPJ Fuse
  
• Catalog Number: LPJ-125SP
  
• Product Type: Fuse
  
• Fuse Class: Class J
  
• Fuse Type: Time Delay, Current Limiting
  
• Number of Elements: Dual
  
• Amperage Rating: 125A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• AC Interrupting Rating: 300 kAIC at 600VAC
  
• DC Interrupting Rating: 100 kAIC VDC
  
• Response Time: 10 seconds at 500%
  
• Connection: Bolted Blade End × Bolted Blade End
  
• Fuse Indicator: Non-Indicating
  
• Special Feature: Non-Indicating; High Inrush Current Motor Protection
  
• Product Length/Depth: 5.875 in.
  
• Product Height: 1.656 in.
  
• Product Width: 1.656 in.
  
• Product Weight: 0.8 lb.
  
• UPC: 051712523424
  
• CE Marked: Yes
  
• RoHS Compliant: Yes
  

Material Compliance and Certifications

The Eaton Bussmann LPJ-125SP fuse is CE Marked and RoHS Compliant. RoHS compliance addresses restrictions on certain hazardous substances, while the CE marking indicates the manufacturer's declaration of conformity with applicable requirements for that marking.

Where It Works Best

The LPJ-125SP 125A Class J fuse is best suited to compatible commercial and industrial electrical systems requiring its combination of time-delay operation, current-limiting characteristics, dual-element construction, and high-inrush-current motor protection. Its time-delay characteristic makes it particularly relevant for properly engineered applications where temporary startup or inrush current is expected and where the equipment specifically calls for a fuse with these characteristics.