LPN-RK-12SP - 12 Amp Fuse

LPN-RK-12SP - 12 Amp Fuse

Getting the fuse right means checking the whole specification—not just the amperage stamped on the body. The Eaton Bussmann series LPN-RK-12SP is a 12A 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-12SP is built to last as part of a correctly designed and maintained electrical system.

Key Features and Benefits

• 12A Class RK1 configuration: Combines a 12-amp rating with the Class RK1 designation for compatible electrical equipment.
• 250VAC / 125VDC ratings: Clearly specified AC and DC voltage ratings make it easier to match the fuse to the circuit requirements.
• Time-delay operation: Eaton specifies an 8-second response time at 500%, providing a manufacturer-defined reference point for its time-delay characteristics.
• Current-limiting fuse: Current-limiting characteristics are part of Eaton's stated fuse type and should be considered when confirming circuit-protection requirements.
• Dual-element construction: The LPN-RK-12SP uses two elements as specified by the manufacturer.
• Ferrule-endferrule connection: Gives electricians and maintenance personnel a clear physical connection detail to verify before replacement.
• Non-indicating configuration: Eaton identifies this particular 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-12SP
  
• Product Type: Fuse
  
• Fuse Class: Class RK1
  
• Fuse Type: Time Delay; Current-Limiting
  
• Number of Elements: Dual
  
• Amperage Rating: 12A
  
• AC Voltage Rating: 250VAC
  
• DC Voltage Rating: 125VDC
  
• AC Interrupting Rating: 300 kAIC at 250VAC
  
• DC Interrupting Rating: 100 kAIC at 125VDC
  
• Response Time: 8 sec. at 500%, as specified by Eaton
  
• Connection: Ferrule End × Fendule End
  
• Fusendndicator: 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: 051712538312
  
• EAN: 5027590064071
  
• CE Marked: Yes
  

Material Compliance and Certifications

According to Eaton's supplied specifications, the LPN-RK-12SP is CE Marked. That manufacturer-stated compliance information can be useful when reviewing the fuse against applicable equipment, facility, project, or compliance requirements.

Where It Works Best

The Eaton Bussmann LPN-RK-12SP 12A Class RK1 fuse is intended for compatible electrical equipment requiring its specific combination of 12A capacity, 250VAC / 125VDC ratings, time-delay operation, current-limiting characteristics, dual-element construction, and ferrule-end connections. Eaton's stated high in-rush current motor protection is particularly relevant when evaluating this fuse for compatible motor applications.