LPN-RK-500SP - 500 Amp Fuse

LPN-RK-500SP - 500 Amp Fuse

When you're dealing with a 500A fuse, getting the details right matters. The Eaton Bussmann series LPN-RK-500SP is a 500A Class RK1 time-delay, current-limiting fuse rated for 250VAC and 250VDC. Eaton specifies an interrupting rating of 300 kAIC at 250VAC and 100 kAIC at 250VDC, with dual-element construction and a blade-end × blade-end connection. Another distinguishing detail is its electrically isolated end cap, which Eaton lists as a special feature for this catalog number. When properly selected, installed by qualified electrical personnel, and operated within its specified ratings, the LPN-RK-500SP is built to last as part of a correctly designed and maintained electrical system.

Key Features and Benefits

• 500A Class RK1 configuration: Combines a 500-amp rating with the Class RK1 designation for applications requiring these specific electrical characteristics.
• 250VAC and 250VDC ratings: Eaton rates this catalog number for both AC and DC applications, subject to the appropriate system requirements.
• Time-delay operation: The LPN-RK-500SP is a time-delay fuse, an important characteristic when matching the fuse to the equipment's protection requirements.
• Current-limiting characteristics: Eaton classifies this model as current-limiting, providing another key specification to verify during fuse selection.
• Dual-element construction: Uses the manufacturer's stated dual-element configuration.
• Electrically isolated end cap: Eaton identifies this as a special feature of the LPN-RK-500SP.
• Blade end × blade end connection: Provides maintenance personnel with a key physical detail for checking compatibility with existing equipment.
• Non-indicating configuration: Eaton identifies this catalog number as non-indicating.

Technical Specifications

• Manufacturer: Eaton
  
• Product Family: Bussmann Series
  
• Product Name: Eaton Bussmann Series LPN-RK Fuse
  
• Catalog Number: LPN-RK-500SP
  
• Product Type: Fuse
  
• Fuse Class: Class RK1
  
• Amperage Rating: 500A
  
• AC Voltage Rating: 250VAC
  
• DC Voltage Rating: 250VDC
  
• AC Interrupting Rating: 300 kAIC at 250VAC
  
• DC Interrupting Rating: 100 kAIC at 250VDC
  
• Fuse Type: Time Delay; Current-Limiting
  
• Number of Elements: Dual
  
• Connection: Blade End × Blade End
  
• Fuse Indicator: Non-Indicating
  
• Special Feature: Electrically Isolated End Cap
  
• Product Length/Depth: 10.38 in.
  
• Product Height: 2.88 in.
  
• Product Width: 2.88 in.
  
• Product Weight: 0.03 lb., as listed by Eaton
  
• UPC: 051712538572
  
• CE Marked: Yes
  
• RoHS Compliant: Yes
  

Material Compliance and Certifications

According to Eaton's specifications, the Bussmann series LPN-RK-500SP is CE-marked and identified as RoHS Compliant. Those manufacturer-stated designations provide useful compliance information when evaluating the fuse for a particular piece of equipment, project, or facility.

Where It Works Best

The Eaton Bussmann LPN-RK-500SP 500A Class RK1 fuse is intended for compatible electrical equipment requiring a 500A rating, 250VAC / 250VDC voltage ratings, time-delay operation, current-limiting characteristics, dual-element construction, and a blade-end × blade-end connection. The manufacturer-listed electrically isolated end cap is another specification to consider when confirming the exact fuse the equipment requires.