LPS-RK-50SP - 50Amp Fuse

LPS-RK-50SP - 50Amp Fuse

Getting the fuse right means checking more than the amp number stamped on the label. The Eaton Bussmann series LPS-RK-50SP is a 50A Class RK1 time-delay, current-limiting fuse rated for 600VAC and 300VDC. Eaton specifies interrupting ratings of 300 kAIC at 600VAC and 100 kAIC at 300VDC, along with a manufacturer-listed response time of 10 seconds at 500%. When properly selected, installed by your qualified electrical personnel, and operated within its specified ratings, the LPS-RK-50SP is built to last as part of a properly designed and maintained electrical system.

Key Features and Benefits

• 50A Class RK1 configuration: The 50-amp rating and Class RK1 designation give electricians and maintenance teams important checkpoints when identifying the correct fuse for compatible equipment.
• Time-delay operation: Eaton specifies the LPS-RK-50SP as a time-delay fuse, an operating characteristic that should match the circuit's protection requirements.
• Current-limiting design: Eaton identifies this model as a current-limiting fuse.
• Dual-element construction: Eaton specifies two elements as part of the fuse's physical and operating design.
• 600VAC and 300VDC ratings: Provides clearly defined AC and DC voltage ratings for appropriate applications.
• Ferrule End × ferrule end connection: Connection style provides another physical characteristic to check when confirming compatibility.
• Non-indicating: Eaton identifies this fuse as a non-indicating model.

Technical Specifications

• Manufacturer: Eaton
  
• Product Family: Bussmann Series
  
• Product Name: Eaton Bussmann Series LPS-RK Fuse
  
• Catalog Number: LPS-RK-50SP
  
• Product Type: Fuse
  
• Fuse Class: Class RK1
  
• Amperage Rating: 50A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• AC Interrupting Rating: 300 kAIC at 600VAC
  
• DC Interrupting Rating: 100 kAIC at 300VDC
  
• Manufacturer-Listed Response Time: 10 sec at 500%
  
• 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: 5.5 in.
  
• Product Height: 1.06 in.
  
• Product Width: 1.06 in.
  
• Product Weight: 2.6 lb.
  
• UPC: 051712548403
  
• CE Marked: Yes
  

Material Compliance and Certifications

According to Eaton's supplied specifications, the LPS-RK-50SP is CE Marked. Do not assume any additional certification or material-compliance designation for this catalog number unless supported by applicable manufacturer documentation.

Where It Works Best

The Eaton Bussmann LPS-RK-50SP 50A Class RK1 fuse is intended for compatible electrical equipment that requires its specific combination of a 50A rating, 600VAC or 300VDC rating, time-delay operation, current-limiting characteristics, dual-element construction, and ferrule-end × ferrule-end connection.