LPN-RK-25SP - 25 Amp Fuse

LPN-RK-25SP - 25 Amp Fuse

A fuse may be a small component, but getting the specifications right matters. The Eaton Bussmann series LPN-RK-25SP is a 25A Class RK1 time-delay, current-limiting fuse rated for 250VAC and 250VDC. Whether you're evaluating a fuse for maintenance or a form, fit, and functional replacement application, these details provide the checkpoints needed to confirm compatibility instead of relying on amperage or appearance alone. When correctly selected, installed by qualified electrical personnel, and operated within its specified ratings, the LPN-RK-25SP is built to last as part of a properly designed and maintained electrical system.

Key Features and Benefits

• 25A Class RK1 fuse: Combines a 25-amp rating with the Class RK1 designation, two important specifications to confirm when selecting a fuse for compatible equipment.
• 250VAC and 250VDC ratings: Eaton rates this model for both AC and DC use within the stated electrical limits.
• Time-delay operation: Provides the manufacturer-specified time-delay characteristic needed in applications designed for this type of fuse.
• Current-limiting: Eaton identifies the LPN-RK-25SP as a current-limiting fuse.
• Dual-element construction: Uses a dual-element configuration as specified by the manufacturer.
• 8 seconds at 500%: Eaton provides this response-time specification for the LPN-RK-25SP, giving electrical professionals another characteristic to verify when matching the fuse to an application.
• Ferrule End × ferrule end connection: Clearly defined termination style helps with physical compatibility checks.
• Non-indicating configuration: Eaton identifies the LPN-RK-25SP as non-indicating.

Technical Specifications

• Manufacturer: Eaton
  
• Product Family: Bussmann Series
  
• Product Name: Eaton Bussmann Series LPN-RK Fuse
  
• Catalog Number: LPN-RK-25SP
  
• Product Type: Fuse
  
• Fuse Class: Class RK1
  
• Amperage Rating: 25A
  
• 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
  
• Response Time: 8 sec at 500%, as specified by Eaton
  
• Number of Elements: Dual
  
• Connection: Ferrule End × Ferrule End
  
• Fuse Indicator: Non-Indicating
  
• 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: 051712538350
  
• EAN: 5027590091602
  
• CE Marked: Yes
  

Material Compliance and Certifications

According to Eaton's specifications, the Bussmann series LPN-RK-25SP is CE-marked. This manufacturer-stated compliance information provides another reference point when checking the fuse against applicable equipment, facility, project, or regulatory requirements.

Where It Works Best

The Eaton Bussmann LPN-RK-25SP 25A Class RK1 fuse is intended for compatible electrical equipment requiring its combination of 25A current rating, 250VAC / 250VDC voltage ratings, time-delay operation, current-limiting characteristics, dual-element construction, and ferrule-end × ferrule-end connections. Eaton's stated high in-rush current motor protection is another characteristic to consider when evaluating the fuse for compatible motor applications.