A6T90 - 90 Amp Fuse

A6T90 - 90 Amp Fuse

If you’re protecting expensive electrical equipment, a fast response matters. The Mersen A6T90 Amp-Trap® Class T Fast-Acting Fuse is built for applications where short circuits and overcurrent conditions need to be cleared quickly before they turn into larger problems. With a 90 amp rating and high current-limiting performance, this fuse helps protect electrical systems in commercial and industrial settings where reliability is part of everyday operation.

One thing electricians and maintenance teams like about the A6T90 is its compact size. It delivers high interrupting capacity without taking up unnecessary room inside a panel or switchboard. The fuse body is made from glass melamine for added stability, and the copper blade construction provides dependable electrical contact. Mersen also stamps the catalog number directly onto the blades, which makes future inspections and replacements a little easier when working inside busy equipment rooms.

Rated for 600VAC and 300VDC applications, the A6T90 is commonly used in power distribution equipment, motor control centers, UPS systems, and other installations where fast-acting circuit protection is important. Its 200kA interrupting rating gives it the ability to handle high fault-current conditions found in demanding electrical systems.

Key Features and Benefits

• Fast-acting fuse designed for quick overcurrent protection: Fast response helps clear fault conditions before damage spreads through the electrical system.
• 90 amp rating for commercial and industrial applications: Suitable for a wide range of power distribution and equipment protection requirements.
• High current limitation helps reduce damage during fault conditions: Minimizes thermal and mechanical stress on connected electrical equipment.
• Compact Class T design helps save panel space: Supports installations where available enclosure space is limited.
• Rated for 600VAC and 300VDC systems: Compatible with both AC and DC electrical applications.
• 200kA interrupting rating for high fault-current applications: Provides dependable protection in demanding electrical environments.
• Glass melamine body for dimensional stability: Helps maintain fuse integrity during operation.
• Copper blade terminals for reliable conductivity: Supports dependable electrical connections.
• Permanently marked blades for easier identification: Helps simplify future inspection and replacement procedures.
• Bolted mounting design for secure installation: Provides stable mounting in commercial and industrial equipment.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A6T90
  
• Product Series: A6T – Class T – Fast-Acting
  
• Product Type: Amp-Trap® Fuse
  
• Ampere Rating: 90A
  
• Voltage Rating (AC): 600VAC
  
• Voltage Rating (DC): 300VDC
  
• Frequency: 50/60 Hz
  
• Fuse Class: Class T
  
• Fuse Speed: Fast-Acting
  
• Interrupting Rating: 200kA AC
  
• Mounting Type: Bolted
  
• Terminal Type: Blade
  
• Terminal Material: Copper
  
• Body Material: GMG Glass Melamine
  
• Product Length: 74.9 mm
  
• Product Diameter: 20.8 mm
  
• Product Weight: 0.0472 kg
  

Material Compliance and Certifications

• Industry Standards: The Mersen A6T90 is designed for low-voltage UL/CSA fuse applications and built to meet the performance demands of modern electrical distribution systems.
  

Where It Works Best

• Industrial control panels
• Switchboards and panelboards
• Motor control centers
• UPS and backup power systems
• HVAC electrical equipment
• Commercial electrical distribution systems
• Renewable energy applications
• High fault-current installations