LPN-RK-50SP - 50 Amp Fuse

LPN-RK-50SP - 50 Amp Fuse

Choosing the right fuse isn't simply a matter of matching the amperage. The Eaton Bussmann series LPN-RK-50SP is a 50A Class RK1 time-delay, current-limiting fuse rated for 250VAC and 125VDC. Eaton specifies an interrupting rating of 300 kAIC at 250VAC and 100 kAIC at 250VDC, along with dual-element construction and a ferrule-end-to-ferrule-end connection. When correctly selected, installed by your qualified electrical personnel, and operated within its specified ratings, this fuse is built to last as part of a properly designed and maintained electrical system.

Key Features and Benefits

• 50A Class RK1 fuse: Provides the specific 50-amp rating and Class RK1 configuration required by compatible equipment.
• Time-delay operation: Eaton identifies the LPN-RK-50SP as a time-delay fuse, an important characteristic when matching a replacement fuse to the equipment's protection requirements.
• Current-limiting design: Current-limiting operation is part of the manufacturer's stated fuse configuration.
• Dual-element construction: Uses Eaton's specified dual-element arrangement.
• 250VAC / 125VDC ratings: Suitable for compatible AC or DC equipment when all other application requirements are satisfied.
• 10 seconds at 500%: Manufacturer-specified response-time data provides another checkpoint when confirming the required fuse characteristics.
• Ferrule End × ferrule end connection: An important physical characteristic to verify when checking form and fit.
• Non-indicating: Eaton's Fuse Indicator specification identifies this model as non-indicating.

Technical Specifications

• Manufacturer: Eaton
  
• Product Family: Bussmann Series
  
• Product Name: Eaton Bussmann Series LPN-RK Fuse
  
• Catalog Number: LPN-RK-50SP
  
• Product Type: Fuse
  
• Fuse Class: Class RK1
  
• Amperage Rating: 50A
  
• AC Voltage Rating: 250VAC
  
• DC Voltage Rating: 125VDC
  
• AC Interrupting Rating: 300 kAIC at 250VAC
  
• DC Interrupting Rating: 100 kAIC at 250VDC
  
• Fuse Type: Time Delay; Current-Limiting
  
• Number of Elements: Dual
  
• Response Time: 10 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: 0.81 in.
  
• Product Height: 2.99 in.
  
• Product Width: 0.81 in.
  
• Product Weight: 0.13 lb.
  
• UPC: 051712538404
  
• EAN: 5027590416979
  
• CE Marked: Yes
  

Material Compliance and Certifications

According to Eaton's specifications, the Bussmann series LPN-RK-50SP is CE Marked. No additional material-compliance designation or certification should be assumed beyond the information supplied for this specific catalog number.

Where It Works Best

The Eaton Bussmann LPN-RK-50SP 50A Class RK1 fuse is intended for compatible electrical equipment requiring a 50A rating, 250VAC / 125VDC voltage ratings, time-delay operation, current-limiting characteristics, dual-element construction, and ferrule-end × ferrule-end connection. Its electrically isolated end cap is another manufacturer-listed characteristic to check when identifying the exact fuse required for an application.