LPS-RK-125SP - 125Amp Fuse

LPS-RK-125SP - 125Amp Fuse

Choosing the right fuse takes more than matching the amp rating. Fuse class, voltage, interrupting rating, operating characteristics, connection style, and physical size all matter. The Eaton Bussmann series LPS-RK-125SP is a 125A 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-125SP is built to last as part of a properly designed and maintained electrical system.

Key Features and Benefits

• 125A Class RK1 configuration: Clearly identifies the amperage and fuse class that must match the equipment and circuit requirements.
• Time-delay operation: Eaton specifies time-delay characteristics for the LPS-RK-125SP, making this an important characteristic to confirm when matching an existing fuse.
• Current-limiting fuse: Current-limiting operation is part of the manufacturer's stated fuse type.
• Dual-element construction: Eaton identifies this LPS-RK fuse as a dual-element design.
• 600VAC / 300VDC voltage ratings: Provides defined AC and DC ratings for evaluating compatibility with the intended electrical system.
• Blade-end × blade-end connection: Gives installers another key physical characteristic to check against the existing fuse and equipment.
• Non-indicating design: Eaton identifies this particular fuse as non-indicating.

Technical Specifications

• Manufacturer: Eaton
  
• Product Family: Bussmann Series
  
• Product Name: Eaton Bussmann Series LPS-RK Fuse
  
• Catalog Number: LPS-RK-125SP
  
• Product Type: Fuse
  
• Fuse Class: Class RK1
  
• Amperage Rating: 125A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• AC Interrupting Rating: 300 kAIC at 600VAC
  
• DC Interrupting Rating: 100 kAIC at 300VDC
  
• Fuse Type: Time Delay; Current-Limiting
  
• Number of Elements: Dual
  
• Connection: Blade End × Blade End
  
• Fuse Indicator: Non-Indicating
  
• Special Feature: Electrically Isolated End Cap
  
• Product Length/Depth: 9.63 in.
  
• Product Height: 1.61 in.
  
• Product Width: 1.61 in.
  
• Product Weight: 2 lb.
  
• UPC: 051712548472
  
• CE Marked: Yes
  

Material Compliance and Certifications

According to Eaton's specifications, the Bussmann series LPS-RK-125SP is CE Marked. Do not assume 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-125SP 125A Class RK1 fuse is intended for compatible electrical equipment requiring a 125A rating, 600VAC / 300VDC voltage ratings, Class RK1 configuration, time-delay operation, current-limiting characteristics, dual-element construction, and a blade-end × blade-end connection. Its electrically isolated end cap is another manufacturer-specified characteristic to consider when confirming the exact fuse required for an application.