LPS-RK-45SP - 45Amp Fuse

LPS-RK-45SP - 45Amp Fuse

When you're replacing or specifying a fuse, 45 amps is only one piece of the match. Fuse class, voltage, interrupting rating, time-delay characteristics, terminal style, and dimensions must all match the equipment requirements. The Eaton Bussmann series LPS-RK-45SP is a 45A Class RK1 time-delay, current-limiting fuse rated for 600VAC and 300VDC. When correctly selected, installed by qualified electrical personnel, and operated within its specified ratings, the LPS-RK-45SP is built to last as part of a properly designed and maintained electrical system.

Key Features and Benefits

• 45A Class RK1 configuration: Combines a 45-amp rating with a Class RK1 design, giving you two important specifications to confirm when matching a fuse.
• Time-delay operation: Eaton identifies the LPS-RK-45SP as a time-delay fuse, an operating characteristic you should match to the circuit and equipment requirements.
• Current-limiting design: Manufacturer specifications classify this fuse as current-limiting.
• Dual-element construction: The LPS-RK-45SP uses a dual-element configuration as specified by Eaton.
• 600VAC / 300VDC voltage ratings: Clearly defined AC and DC ratings make it easier to check the fuse against the intended application.
• Ferrule End × ferrule end connection: A key physical detail to verify when matching an existing fuse or fuse holder.
• Non-indicating configuration: Eaton identifies the LPS-RK-45SP as non-indicating.

Technical Specifications

• Manufacturer: Eaton
  
• Product Family: Bussmann Series
  
• Product Name: Eaton Bussmann Series LPS-RK Fuse
  
• Catalog Number: LPS-RK-45SP
  
• Product Type: Fuse
  
• Fuse Class: Class RK1
  
• Amperage Rating: 45A
  
• 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: 5.5 in.
  
• Product Height: 1.06 in.
  
• Product Width: 1.06 in.
  
• Product Weight: 2.6 lb.
  
• UPC: 051712548397
  
• CE Marked: Yes
  

Material Compliance and Certifications

According to Eaton's specifications, the Bussmann series LPS-RK-45SP is CE Marked. Do not assume additional certification or material-compliance designation for this exact catalog number unless applicable manufacturer documentation supports it.

Where It Works Best

The Eaton Bussmann LPS-RK-45SP 45A Class RK1 fuse is intended for compatible electrical equipment requiring a 45A 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 check when matching an existing fuse.