LPS-RK-4SP - 4Amp Fuse

LPS-RK-4SP - 4Amp Fuse

Choosing the right fuse takes more than matching the amp number. Fuse class, voltage rating, interrupting capacity, operating characteristics, connection style, and physical dimensions must all match the equipment. The Eaton Bussmann series LPS-RK-4SP is a 4A Class RK1 time-delay, current-limiting fuse rated for 600VAC and 300VDC. When correctly selected, installed by your qualified electrical personnel, and operated within its specified ratings, the LPS-RK-4SP is built to last as part of a properly designed and maintained electrical system.

Key Features and Benefits

• 4A Class RK1 configuration: Combines a 4-amp rating with a Class RK1 design, providing two essential checkpoints when selecting or matching a fuse.
• Time-delay operation: Eaton classifies the LPS-RK-4SP as a time-delay fuse. Match this operating characteristic to the requirements of the circuit and connected equipment.
• Current-limiting fuse: Manufacturer specifications identify this model as current-limiting.
• Dual-element construction: The LPS-RK-4SP uses a dual-element configuration.
• 600VAC and 300VDC ratings: Clearly specified AC and DC voltage ratings help with application and replacement verification.
• Ferrule End × ferrule end connection: An important physical specification when checking fit with an existing fuse holder or compatible equipment.
• Non-indicating configuration: Eaton identifies the LPS-RK-4SP as non-indicating.

Technical Specifications

• Manufacturer: Eaton
  
• Product Family: Bussmann Series
  
• Product Name: Eaton Bussmann Series LPS-RK Fuse
  
• Catalog Number: LPS-RK-4SP
  
• Product Type: Fuse
  
• Fuse Class: Class RK1
  
• Amperage Rating: 4A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• AC Interrupting Rating: 300 kAIC at 600VAC
  
• DC Interrupting Rating: 100 kAIC at 300VDC
  
• Response Time: 10 sec at 500% (manufacturer specified)
  
• Fuse Type: Time Delay; Current-Limiting
  
• Number of Elements: Dual
  
• Connection: Ferrule End × Ferrule End
  
• Fuse Indicator: Non-Indicating
  
• Special Feature: Electrically Isolated End Cap
  
• Product Length/Depth: 5 in.
  
• Product Height: 0.81 in.
  
• Product Width: 0.81 in.
  
• Product Weight: 1.6 lb.
  
• UPC: 051712548212
  
• CE Marked: Yes
  

Material Compliance and Certifications

According to Eaton's specifications, the Bussmann series LPS-RK-4SP is CE Marked. Do not assume any additional certification or material-compliance designation for this exact catalog number without supporting manufacturer documentation.

Where It Works Best

The Eaton Bussmann LPS-RK-4SP 4A Class RK1 fuse is intended for compatible electrical equipment requiring its specific combination of a 4A rating, 600VAC / 300VDC voltage ratings, Class RK1 configuration, time-delay operation, current-limiting characteristics, dual-element construction, and ferrule-end × ferrule-end connection. Its electrically isolated end cap is another manufacturer-specified detail to consider when matching an existing fuse.