A3T500 - 500Amp Fuse

A3T500 - 500Amp Fuse

The Mersen A3T500 is built for electrical systems that need quick, reliable protection when fault conditions happen. This 500 amp Class T fuse is designed to respond fast to short circuits and overloads, helping you protect equipment before serious damage occurs. Its compact size makes it a good fit for tighter electrical panels, especially in commercial and industrial applications where space can be limited.

Made with a glass melamine body and copper blade terminals, the A3T500 is designed for dependable performance in demanding environments. The bolted blade connection provides a secure installation, while the high interrupting rating helps to handle your applications with high available fault current. Permanent markings on the blades also make identification easier during maintenance or replacement.

The A3T500 is commonly used in power distribution systems, motor circuits, UPS equipment, HVAC systems, and other electrical applications where fast overcurrent protection is important. For facilities trying to reduce downtime and protect critical components, this fuse offers a practical and dependable solution.

Key Features and Benefits

• Fast-acting protection against overloads and short circuits
• 500 amp rating for high-current applications
• Compact Class T design helps save panel space
• High current-limiting performance helps reduce equipment damage
• Bolted blade terminals for a secure connection
• Durable glass melamine construction
• Clearly marked blades for easier identification
• Suitable for AC and DC applications

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A3T500
  
• Series: A3T
  
• Fuse Class: Class T
  
• Fuse Type: Fast-Acting
  
• Amp Rating: 500A
  
• AC Voltage Rating: 300VAC
  
• DC Voltage Rating: 160VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Mounting Type: Bolted
  
• Terminal Type: Blade
  
• Terminal Material: Copper
  
• Body Material: GMG Glass Melamine
  
• Product Length: 77.7 mm
  
• Product Diameter: 41.1 mm
  
• Product Weight: 0.2023 kg
  
• UPC/EAN: 782001890308
  

Material Compliance and Certifications

• RoHS Compliant
• Designed for UL low-voltage fuse applications
• Rated for AC and DC systems
  

Where It Works Best

• The Mersen A3T500 works well in commercial and industrial electrical systems that require dependable overcurrent protection.
• Typical applications include switchboards, control panels, motor protection circuits, HVAC equipment, UPS systems, battery systems, and OEM machinery where protecting equipment and maintaining uptime are important.