NCLR40 - 40 Amp Fuse

NCLR40 - 40 Amp Fuse

The NCLR40 is a 40-amp, time-delay Class R fuse made for applications that call for current-limiting protection at up to 600 VAC. It has a 200 kA A.I.C. rating at 600 VAC and comes in a compact cartridge-style design. Because it's a time-delay fuse, the NCLR40 is suited to compatible equipment where brief current surges can be part of normal operation. It's also non-indicating, so there are no visual blown-fuse indicators built into the unit. If you're replacing an NCLR40 that's already in service, the important things to check are pretty simple: amperage, voltage, fuse class, interrupting rating, physical size, and the time-delay requirement. Matching those specifications helps ensure you're selecting the right fuse for the application.

Key Features and Benefits

• 40-amp Class R fuse with a 600 VAC rating
• 200 kA A.I.C. at 600 VAC
• Time-delay characteristics for compatible applications
• Current-limiting design
• Cartridge-style construction
• Non-indicating configuration
• Compact 3.0 x 0.81 x 0.81 dimensions
  

Technical Specifications

• Part Number: NCLR40
  
• Type: NCLR
  
• Amperage: 40 A
  
• Fuse Class: Class R
  
• Voltage: 600 VAC
  
• A.I.C. Rating: 200 kA @ 600 VAC
  
• Fuse Characteristic: Time-Delay
  
• Protection Type: Current-Limiting
  
• Style: Cartridge
  
• Indication: Non-Indicating
  
• Dimensions:
  • Height: 3.0
  • Width: 0.81
  • Depth: 0.81

Material Compliance and Certifications

The available NCLR40 product information didn't include specific material-compliance or certification details. These details should be confirmed from current manufacturer documentation or product markings rather than assumed.

Where It Works Best

The NCLR40 40A fuse makes sense when the equipment specifications call for a 600 VAC, Class R, time-delay, current-limiting fuse with the ratings listed above. The time-delay characteristic is particularly relevant in compatible applications that may experience brief increases in current during normal operation.

Replacing an existing fuse? Start with the part number, but don't stop there. Check the 40 amp rating, 600 VAC rating, 200 kA A.I.C., Class R designation, time-delay characteristic, and physical dimensions against the equipment's requirements. That gives you a much better way to confirm a proper match than relying on appearance alone.