A3T450 - 450Amp Fuse

A3T450 - 450Amp Fuse

The Mersen A3T450 Class T Fast-Acting Fuse is built for electrical systems that need quick response and dependable protection when fault conditions occur. Rated at 450 amps, this Class T fuse is commonly used in commercial and industrial applications where protecting equipment from short circuits and overcurrent events is a top priority. Its fast-acting design helps limit damage before it spreads through connected components, which can help reduce downtime and expensive repairs.

One of the standout advantages of the A3T450 is its combination of high current-limiting performance and compact size. The glass melamine body helps maintain stability during operation, while the copper blade terminals provide reliable conductivity and secure bolted connections.

Key Features and Benefits

• Fast-acting protection for overload and short-circuit conditions
• High current-limiting performance helps protect connected equipment
• Compact Class T design saves panel space
• 450A rating for demanding commercial and industrial applications
• Rated for 300VAC and 160VDC systems
• High interrupting rating up to 200 kA AC
• Copper blade terminals for dependable electrical connections
• Glass melamine body for dimensional stability
• Blade-stamped catalog number for easier identification
• Suitable for both AC and DC applications
• RoHS compliant

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A3T450
  
• Product Series: A3T – Class T – Fast-Acting
  
• Product Type: Fast-Acting Fuse
  
• Fuse Class: Class T
  
• Ampere Rating: 450A
  
• Rated AC Voltage: 300VAC
  
• Rated DC Voltage: 160VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Mounting Type: Bolted
  
• Terminal Type: Blade
  
• Terminal Material: Copper
  
• Body Material: GMG (Glass Melamine)
  
• AC/DC Application: AC/DC
  
• Product Length: 77.7 mm
  
• Product Diameter: 41.1 mm
  
• Product Weight: 0.2023 kg
  
• Compliance: RoHS Compliant
  

Material Compliance and Certifications

• The A3T450 fuse is RoHS compliant and manufactured to meet applicable UL performance requirements for Class T fast-acting fuses.
• It is designed for use in systems where reliable overcurrent protection and consistent performance are important.
  

Where It Works Best

• Industrial control panels
• Power distribution systems
• Motor protection applications
• UPS and backup power equipment
• Manufacturing and processing equipment
• Commercial electrical systems
• DC power applications