AJT50 - 50 Amp Fuse

AJT50 - 50 Amp Fuse

The AJT50 Class J Time-Delay Fuse is designed for your electrical systems that deal with normal startup surges from motors, transformers, and HVAC equipment. When this kind of equipment starts up, it can briefly pull more current than it does during regular operation. The AJT50 is built to handle those short surges without opening unnecessarily, while still protecting the circuit if an overload or short circuit happens.

Its compact Class J design helps you save space inside electrical panels and control cabinets, making it a good fit for installations where space is limited. The fuse also provides current-limiting protection, helping reduce the amount of fault current moving through the system during a fault condition. That can help you reduce damage to connected wiring, controls, and electrical equipment.

The built-in SmartSpot® visual indicator also helps simplify maintenance. When the fuse opens, technicians can quickly identify the affected fuse without spending extra time troubleshooting the system.

Key Features and Benefits

• Time-delay design helps reduce nuisance openings during startup currents: Helps allow temporary startup surges without unnecessary fuse openings.
• Current-limiting protection helps reduce damage during fault conditions: Helps reduce fault current moving through the system during short circuits.
• Compact Class J size helps save panel space: Useful for tighter electrical panels and control cabinets.
• SmartSpot® visual indicator helps identify opened fuses quickly: Helps technicians locate opened fuses faster during maintenance.
• High interrupting capacity for demanding electrical systems: Designed for commercial and industrial applications.
• Suitable for AC and DC applications: Supports a variety of electrical system requirements.
• Ferrule-style terminals support secure installation: Helps provide dependable electrical connections.
• Commonly used in commercial and industrial electrical systems: Suitable for a wide range of power distribution applications.
  

Technical Specifications

• Catalog Number: AJT50
  
• Series: AJT – Class J – Time-Delay
  
• Fuse Type: Amp-Trap 2000®
  
• Ampere Rating: 50 Amps
  
• Voltage Rating (AC): 600 VAC
  
• Voltage Rating (DC): 400 VDC
  
• Frequency: 50/60 Hz
  
• Fuse Class: Class J
  
• Characteristic: Time Delay
  
• Interrupting Rating: 200 kA
  
• Mounting Type: Clip Mount
  
• Terminal Type: Ferrule
  
• Terminal Material: Tin-Plated Copper
  
• Indication System: SmartSpot® Visual Indicator
  
• Body Material: GMG
  
• Product Diameter: 27 mm
  
• Product Length: 60.5 mm
  
• Product Weight: 0.0757 kg
  

Material Compliance and Certifications

• Industry Standards: The AJT50 fuse is designed for low-voltage UL and CSA applications and supports IEC Type 2 “No Damage” protection requirements when properly coordinated within electrical systems.
  

Where It Works Best

• The AJT50 is commonly installed in HVAC systems, motor control centers, industrial machinery, transformers, switchboards, feeder circuits, branch circuits, and electrical control panels where temporary startup surges are expected during normal operation.