A3T300 - 300Amp Fuse

A3T300 - 300Amp Fuse

The Mersen A3T300 Amp-Trap® Class T Fuse is made for electrical systems that need quick, dependable protection in a compact design. With a 300A rating, this fast-acting fuse helps protect equipment from short circuits and overloads before damage spreads through the system. Its smaller Class T footprint also makes it a solid choice for installations where panel space is limited.

Whether it’s installed in a UPS system, motor control center, or power distribution equipment, this fuse is built to help keep critical systems protected and running smoothly.

Key Features and Benefits

• 300A Class T fast-acting fuse
• Rated for 300VAC and 160VDC applications
• Helps protect equipment from overloads and short circuits
• Compact Class T design helps save panel space
• Fast response helps reduce potential equipment damage
• Glass melamine body offers added dimensional stability
• 200 kA interrupting rating for high fault-current applications
• Bolted blade-style terminals for secure installation
• Copper terminal construction for dependable conductivity
• Permanent markings help simplify identification and maintenance

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A3T300
  
• Product Type: Class T Fast-Acting Fuse
  
• Ampere Rating: 300A
  
• AC Voltage Rating: 300VAC
  
• DC Voltage Rating: 160VDC
  
• Frequency: 50/60 Hz
  
• Fuse Class: Class T
  
• Fuse Speed: Fast-Acting
  
• Interrupting Rating (AC): 200 kA
  
• Mounting Type: Bolted
  
• Terminal Type: Blade
  
• Terminal Material: Copper
  
• Body Material: GMG (Glass Melamine)
  
• Product Length: 69.8 mm
  
• Product Diameter: 33.8 mm
  
• Product Weight: 0.1234 kg
  

Material Compliance and Certifications

• RoHS Compliant
• Suitable for UL/CSA low-voltage fuse applications
• Designed for commercial and industrial electrical protection systems
  

Where It Works Best

• Industrial control panels
• Power distribution equipment
• UPS and backup power systems
• Motor control centers
• Battery and DC systems
• Commercial electrical service equipment
• Manufacturing and automation systems
• Branch circuit protection applications