A6T40 - 40 Amp Fuse

A6T40 - 40 Amp Fuse

The Mersen A6T40 is a fast-acting Class T fuse designed to help protect electrical systems from overloads and short circuits. With a 40 Amp rating and compact design, it’s a good fit for commercial and industrial equipment where dependable circuit protection is important.

This fuse is part of Mersen’s Amp-Trap® A6T series, known for high current limitation and fast response time. When a fault occurs, the A6T40 reacts quickly to help reduce damage to connected equipment and limit downtime. Its compact size also makes installation easier in panels and equipment with limited space.

The A6T40 is commonly used in motor circuits, control panels, HVAC equipment, power distribution systems, UPS applications, and other systems where fast overcurrent protection is needed.

Key Features and Benefits

• Fast-acting protection for overloads and short circuits: Quickly responds to fault conditions to help protect connected electrical equipment.
• 40 Amp rating: Suitable for a wide range of commercial and industrial electrical applications.
• Rated for 600VAC and 300VDC applications: Compatible with both AC and DC electrical systems.
• High interrupting rating of 200kA AC: Provides protection in high fault-current environments.
• Compact Class T design helps save panel space: Supports installations where available enclosure space is limited.
• Current-limiting performance helps reduce equipment damage: Helps minimize thermal and mechanical stress during faults.
• Glass melamine body for durability and thermal stability: Supports dependable long-term performance.
• Copper ferrule terminals for dependable conductivity: Provides reliable electrical connections.
• Permanent catalog markings for easy identification: Simplifies future inspection and replacement procedures.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A6T40
  
• Product Series: A6T – Class T – Fast-Acting
  
• Fuse Class: Class T
  
• Ampere Rating: 40A
  
• Rated AC Voltage: 600VAC
  
• Rated DC Voltage: 300VDC
  
• Frequency: 50/60 Hz
  
• Fuse Type: Fast-Acting
  
• Interrupting Rating: 200kA AC
  
• Connection Type: Ferrule
  
• Terminal Material: Copper
  
• Mounting Type: Clip
  
• Product Diameter: 20.6 mm
  
• Product Length: 39.9 mm
  
• Body Material: GMG (Glass Melamine)
  
• AC/DC Application: AC/DC
  
• UPC: 782001891084
  

Material Compliance and Certifications

• Industry Standards: The Mersen A6T40 fuse is manufactured to meet UL and CSA standards for low-voltage electrical protection applications.
• Class T Protection: Its Class T design provides high interrupting capacity and reliable current limitation for commercial and industrial systems.
  

Where It Works Best

• Industrial control panels
• Power distribution equipment
• Motor protection circuits
• UPS and backup power systems
• HVAC systems
• Renewable energy equipment
• Commercial electrical installations
• Sensitive electronic equipment

The Mersen A6T40 offers dependable overcurrent protection in a compact design, making it a practical choice for a wide range of electrical applications.