The Bussmann NON‑25 is a one‑time, non‑current‑limiting general‑purpose fuse designed for light‑duty circuits where temporary surges are not expected. This cartridge‑style fuse is part of the Bussmann NON series, known for dependable protection in lighting, heating, and other low‑fault‑current applications.

Key Features

• 25‑amp current rating for standard light‑duty electrical circuits. 
• Rated for 250 VAC / 125 VDC, suitable for a wide range of AC and DC applications. 
• One‑time, non‑current‑limiting design, ideal for circuits not subject to surges. 
• Non‑indicating fuse style for simple, cost‑efficient construction. 
• Class K5 / H classification for standard general‑purpose protection. 
• Fast‑acting operation—opens quickly under overload conditions. 
• Ferrule‑end cartridge construction for secure holder‑based installation. 
• 50 kA interrupt rating at both AC and DC voltage specifications. 

Specifications

• Model: NON‑25
• Amperage: 25 A
• Voltage Rating:
  • 250 Vac
  • 125 Vdc
• Interrupting Rating: 50 kAIC at 250 Vac / 125 Vdc 
• Fuse Type: One‑time, Medium/Normal Blow (non‑current‑limiting) 
• Class: K5 / H
• Body Style: Cartridge fuse, ferrule‑end x ferrule‑end
• Dimensions:
  • Diameter: 0.56 in
  • Length: 2 in
• Applications: Light‑duty circuit locations (lighting, heating, branch circuits, general purpose) 

Applications

The NON‑25 is commonly used in:

• Lighting circuits
• Heating circuits and appliances
• Residential and commercial fuse panels
• General‑purpose branch circuits without heavy motor loads
• Industrial control circuits requiring non‑time‑delay protection