LPN-RK-3SP - 3 Amp Fuse

LPN-RK-3SP - 3 Amp Fuse

Getting the fuse right means checking more than the amp rating printed on the label. The Eaton Bussmann series LPN-RK-3SP is a 3A Class RK1 time-delay, current-limiting fuse rated for 250VAC and 125VDC. When properly selected, installed by your qualified electrical personnel, and operated within its specified ratings, the LPN-RK-3SP is built to last as part of a correctly designed and maintained electrical system.

Key Features and Benefits

• 3A Class RK1 configuration: Provides a clearly defined amperage and fuse-class combination for matching compatible electrical equipment.
• 250VAC / 125VDC ratings: Separate AC and DC ratings make it easier to verify the fuse against the actual circuit requirements.
• Time-delay operation: Eaton specifies time-delay characteristics for the LPN-RK-3SP, an important consideration when selecting protection for circuits where short-duration current changes may occur.
• Current-limiting fuse: Eaton identifies this as current-limiting, another essential characteristic to verify during fuse selection.
• Dual-element construction: Uses the manufacturer's specified dual-element design.
• Ferrule End × ferrule end connection: Gives technicians a specific physical connection characteristic to confirm before replacement.

Technical Specifications

• Manufacturer: Eaton
  
• Product Family: Bussmann Series
  
• Product Name: Eaton Bussmann Series LPN-RK Fuse
  
• Catalog Number: LPN-RK-3SP
  
• Product Type: Fuse
  
• Fuse Class: Class RK1
  
• Amperage Rating: 3A
  
• AC Voltage Rating: 250VAC
  
• DC Voltage Rating: 125VDC
  
• AC Interrupting Rating: 300 kAIC at 250VAC
  
• DC Interrupting Rating: 100 kAIC at 125VDC
  
• Fuse Type: Time Delay; Current-Limiting
  
• Response Time: 8 sec. at 500%, as specified by Eaton
  
• Number of Elements: Dual
  
• Connection: Ferrule End × Ferrule End
  
• Fuse Indicator: Non-Indicating, per Eaton's dedicated Fuse Indicator specification
  
• Special Feature: High In-Rush Current Motor Protection
  
• Product Length/Depth: 2 in.
  
• Product Height: 0.56 in.
  
• Product Width: 0.56 in.
  
• Product Weight: 0.5 lb.
  
• UPC: 051712538183
  
• EAN: 5027590243698
  
• CE Marked: Yes
  

Material Compliance and Certifications

According to Eaton's supplied specifications, the LPN-RK-3SP is CE-marked. This manufacturer-stated compliance information provides a useful reference when evaluating the fuse against applicable equipment, project, facility, or regulatory requirements.

Where It Works Best

The Eaton Bussmann LPN-RK-3SP 3A Class RK1 fuse is intended for compatible electrical equipment requiring a 3A rating, 250VAC / 125VDC voltage ratings, Class RK1 construction, time-delay operation, current-limiting characteristics, dual elements, and a ferrule-end × ferrule-end connection. Eaton's stated high in-rush current motor protection is also relevant when evaluating this fuse for compatible motor applications.