A6T20 - 20 Amp Fuse

A6T20 - 20 Amp Fuse

The Mersen A6T20 Amp-Trap® Class T Fast-Acting Fuse is a dependable choice for protecting your electrical systems from overloads and short circuits before they can cause bigger problems. Rated at 20 Amps, this fast-acting Class T fuse is commonly used in commercial and industrial applications where reliable circuit protection helps keep your equipment running safely and reduces unexpected downtime.

When a fault occurs, the A6T20 is designed to react quickly, helping reduce the amount of fault current moving through the circuit. That fast response can help you protect transformers, control panels, HVAC equipment, disconnect switches, and other sensitive electrical components used in power distribution systems and industrial facilities. In busy environments where electrical systems are running constantly, having the right fuse in place can help avoid costly interruptions and equipment damage.

One thing that makes the A6T20 especially practical is its compact size combined with high current-limiting performance. In crowded electrical panels or space-limited enclosures, every inch matters. This fuse delivers dependable protection without taking up unnecessary space. Its unique Class T sizing also helps prevent replacement with lower-rated fuses, helping maintain proper circuit protection and system safety.

Part of Mersen’s trusted Amp-Trap® A6T series, the A6T20 features a glass melamine body designed for dependable dimensional stability in demanding electrical applications. Permanently stamped catalog markings also help make identification easier during maintenance and inspections.

With a high 200 kA interrupting rating, the A6T20 is commonly used in applications where high available fault currents are present and reliable overcurrent protection is essential.

Key Features and Benefits

• 20 Amp Class T fast-acting fuse
• Helps protect against overloads and short circuits
• High current-limiting performance
• Compact design for space-saving installations
• Fast fault clearing for dependable protection
• High 200 kA interrupting rating
• Rated for 600VAC and 300VDC applications
• Ferrule terminals for secure clip mounting
• Glass melamine body for dimensional stability

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A6T20
  
• Series: Amp-Trap® A6T
  
• Fuse Class: Class T
  
• Fuse Type: Fast-Acting
  
• Ampere Rating: 20A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Terminal Type: Ferrule
  
• Mounting: Clip
  
• Terminal Material: Copper
  
• Body Material: GMG (Glass Melamine)
  
• Diameter: 14.5 mm
  
• Length: 38.1 mm
  
• Product Weight: 0.0136 kg
  
• Product Group: Low Voltage UL/CSA Fuses
  

Material Compliance and Certifications

• The A6T20 is manufactured for low-voltage UL and CSA fuse applications requiring dependable overcurrent protection in commercial and industrial electrical systems.
  

Where It Works Best

• Industrial control panels
• Branch circuit protection
• HVAC equipment
• Commercial electrical systems
• Power distribution equipment
• Manufacturing machinery
• Transformer protection
• Disconnect switches
• Sensitive electrical equipment
• Space-limited electrical enclosures