LPJ-450SP - 450 Amp Fuse

LPJ-450SP - 450 Amp Fuse

To choose the right fuse, check the full specification—not just the amp rating. The Eaton Bussmann series LPJ-450SP is a 450A Class J time-delay, current-limiting fuse rated for 600VAC and 300VDC. It is also CE-marked and RoHS-compliant. With its ratings and physical specifications clearly defined, the LPJ-450SP gives electricians and maintenance professionals several important checkpoints for confirming the correct fuse for compatible equipment. When you select, install, and operate it within its specified ratings, this fuse is built to last as part of a properly designed and maintained electrical system.

Key Features and Benefits

• 450A Class J fuse: Rated at 450 amps and identified by Eaton as a Class J fuse for compatible electrical equipment.
• Time-delay characteristics: Eaton specifies a response time of 10 seconds at 500% of rated current, a key characteristic to verify when the application calls for time-delay protection.
• High-inrush-current motor protection: Eaton identifies high-inrush-current motor protection as one of the LPJ-450SP's special features.
• Dual-element construction: Uses a dual-element configuration as part of the fuse design.
• 600VAC / 300VDC ratings: Clearly specified voltage ratings make it easier to evaluate the fuse against compatible AC or DC equipment requirements.
• Bolted-blade connection: Features a bolted-blade-to-bolted-blade connection for compatible mounting arrangements.
• Non-indicating specification: Eaton's dedicated fuse-indicator specification identifies the LPJ-450SP as non-indicating.

Technical Specifications

• Manufacturer: Eaton
  
• Series: Bussmann Series LPJ
  
• Product Name: Eaton Bussmann Series LPJ Fuse
  
• Catalog Number: LPJ-450SP
  
• Product Type: Fuse
  
• Fuse Class: Class J
  
• Fuse Type: Time Delay, Current Limiting
  
• Number of Elements: Dual
  
• Amperage Rating: 450A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• AC Interrupting Rating: 300 kAIC at 600VAC
  
• DC Interrupting Rating: 100 kAIC VDC
  
• Manufacturer-Specified Response Time: 10 seconds at 500%
  
• Connection: Bolted Blade End × Bolted Blade End
  
• Fuse Indicator: Non-Indicating
  
• Special Feature: High In-Rush Current Motor Protection
  
• Product Length/Depth: 8 in.
  
• Product Height: 2.5 in.
  
• Product Width: 2.5 in.
  
• Product Weight: 1.39 lb.
  
• UPC: 051712522854
  
• CE Marked: Yes
  
• RoHS Compliant: Yes
  

Material Compliance and Certifications

According to Eaton's specifications, the LPJ-450SP is CE Marked and RoHS Compliant. These manufacturer-stated compliance details help when checking the fuse against applicable equipment, facility, project, or material requirements.

Where It Works Best

The Eaton Bussmann LPJ-450SP 450A Class J fuse is intended for compatible electrical equipment that requires its combination of 450A capacity, 600VAC or 300VDC operation, time-delay characteristics, current-limiting design, dual-element construction, and bolted-blade connections. Eaton also identifies high-inrush-current motor protection as a special feature, making that specification particularly relevant when evaluating the fuse for compatible motor applications.