Fuse Amp-Trap 2000® 600V 50A Time-Delay Class J AJT Series Smart-Spot

The Fuse Amp-Trap 2000® AJT Series is designed for motor circuits, mains feeders, branch circuits, lighting, heating, general loads, transformers, control panels, circuit breaker back-up, bus duct, and load centers. This time-delay Class J fuse offers IEC Type 2 no damage protection with superior current limiting and is ideal for handling motor and transformer inrush currents. Its compact size requires only half the mounting space of 600VAC Class RK fuses, making it suitable for electrical distributors and lighting solutions requiring reliable protection in wire and cable and switchgear applications.

Specifications

• Amperage Rating: 50 A
• Voltage Rating: 600 V AC
• Interrupt Rating: 200 kA
• Frequency: 50 hertz
• Dimensions: Length 2.38 in, Width 1.06 in, Height 1.06 in, Diameter 1.06 in
• Mounting Type: Clip
• Connection Type: Ferrule
• Fuse Class: Class J
• Insulation Material: GMG
• Product Weight: 0.1670 lbs
• Manufacturer Part Number: AJT50
• Manufacturer: Mersen

Features

• Available with SmartSpot visual open fuse indicator or non-indicating versions
• Time-delay characteristics optimized for motor starting and transformer inrush currents
• IEC Type 2 no damage protection on main, feeder, and branch circuits
• Compact design reduces mounting space by half compared to 600VAC Class RK fuses
• Superior current-limiting ability to reduce peak currents
• Orange label for quick identification with engraved manufacturing date and catalog number
• High-quality fiberglass body ensures dimensional stability in industrial environments
• High-grade silica sand for rapid arc extinction
• Recommended for use in hazardous environments (Class I Division 2 certified by NEC)
• Facilitates selective coordination with a 2:1 ratio to prevent nuisance operations
• Unique Class J dimensions prevent replacement errors

Downloads & Links

• Spec Sheet FR
• Drawings
• Curves 1
• Curves 2
• Spec Sheet