Description
The Mersen AJT20 is a high-performance 20 A Class J time-delay power fuse engineered to provide dependable overcurrent protection for industrial, commercial, and electrical distribution systems. Designed with advanced Amp-Trap 2000® technology, this fuse combines superior current limiting with time-delay characteristics to handle inrush currents without nuisance trips — making it ideal for motor, transformer, and feeder applications.
Key Features
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20 A Ampere Rating: Provides reliable current protection for low-voltage circuits.
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600 V AC / 400 V DC Voltage Capability: Suitable for a wide range of AC and DC electrical systems.
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Class J Time-Delay Design: Handles temporary overloads and motor/transformer inrush without blowing prematurely.
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SmartSpot® Visual Indicator: Built-in visual blown-fuse indicator for quick status checks.
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Current-Limiting Performance: Reduces let-thru energy and enhances safety during faults.
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Compact Design: Space-saving cylindrical body fits standard Class J holders and fuse blocks.






