LPN-RK-5SP - 5 Amp Fuse

LPN-RK-5SP - 5 Amp Fuse

Getting the right fuse means checking more than the amp rating printed on the label. The Eaton Bussmann series LPN-RK-5SP is a 5A Class RK1 time-delay, current-limiting fuse rated for 250VAC and 125VDC. Eaton specifies interrupting ratings of 300 kAIC at 250VAC and 100 kAIC at 125VDC, giving you clear electrical specifications to match against the equipment you're servicing. When correctly selected, installed by qualified electrical personnel, and operated within its specified ratings, the LPN-RK-5SP is built to last as part of a properly designed and maintained electrical system.

Key Features and Benefits

• 5A Class RK1 configuration: Combines a 5-amp rating with the Class RK1 format specified for compatible electrical equipment.
• Time-delay operation: Eaton identifies this fuse as time-delay, an important characteristic to match when replacing a fuse in equipment designed for this type of protection.
• Current-limiting fuse: Current-limiting operation is part of the manufacturer's specified fuse design.
• Dual-element construction: Uses the dual-element configuration Eaton specifies for this catalog number.
• 250VAC and 125VDC ratings: Provides clearly defined AC and DC voltage ratings for proper application matching.
• 8 seconds at 500%: Eaton lists this response-time specification, providing another identification and application-matching point.
• Ferrule End × ferrule end connection: Helps identify the required physical connection when checking form and fit.
• Non-indicating: Eaton identifies this catalog number as a non-indicating fuse.

Technical Specifications

• Manufacturer: Eaton
  
• Product Family: Bussmann Series
  
• Product Name: Eaton Bussmann Series LPN-RK Fuse
  
• Catalog Number: LPN-RK-5SP
  
• Product Type: Fuse
  
• Fuse Class: Class RK1
  
• Amperage Rating: 5A
  
• 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
  
• Number of Elements: Dual
  
• Response Time: 8 sec at 500%, as specified by Eaton
  
• Connection: Ferrule End × Ferrule End
  
• Fuse Indicator: Non-Indicating
  
• Special Feature: Electrically Isolated End Cap
  
• Product Length/Depth: 2 in.
  
• Product Height: 0.56 in.
  
• Product Width: 0.56 in.
  
• Product Weight: 0.049 lb.
  
• UPC: 051712538237
  
• EAN: 5027590091589
  
• CE Marked: Yes
  

Material Compliance and Certifications

According to Eaton's supplied specifications, the LPN-RK-5SP is CE Marked. Do not assume any additional certification or material-compliance designation for this catalog number unless confirmed in current manufacturer documentation.

Where It Works Best

The Eaton Bussmann LPN-RK-5SP 5A Class RK1 fuse is intended for compatible electrical equipment requiring its specific combination of 5A capacity, 250VAC / 125VDC ratings, Class RK1 construction, time-delay operation, current-limiting characteristics, dual elements, and ferrule-end × ferrule-end connections. Its electrically isolated end cap is another manufacturer-listed detail to consider when confirming the exact fuse configuration required.