TR7R - 7 Amp Fuse

TR7R - 7 Amp Fuse

When electrical systems face sudden power surges or startup currents, you need protection that keeps equipment running without unnecessary interruptions. The TR7R Class R Time-Delay Fuse is built to handle those real-world demands, delivering dependable overcurrent protection for commercial and industrial applications where uptime matters. Rated at 7 amps with a 200 kA interrupting capacity at 250VAC, this current-limiting fuse helps protect sensitive electrical equipment from damaging short circuits and overloads before costly problems escalate.

What makes the TR7R especially valuable is its time-delay performance. Instead of opening during harmless temporary inrush currents caused by motor startups, transformers, or HVAC equipment cycling on, this fuse is designed to tolerate short-duration surges while still reacting quickly to dangerous fault conditions. That means fewer nuisance interruptions, smoother operation, and better protection for the systems you rely on every day.

Its compact cartridge-style design allows easy installation in compatible Class R fuse holders and industrial panels, making it a practical choice for maintenance teams, contractors, and facility operators seeking reliable circuit protection in demanding environments. Whether you're protecting motor control circuits, branch panels, manufacturing equipment, or commercial electrical systems, the TR7R fuse offers the balance of safety, performance, and reliability professionals expect from a high-quality Class R fuse.

Key Features and Benefits

• Time-Delay Design: Helps prevent nuisance fuse openings during equipment startup.
• Current-Limiting Protection: Helps reduce damage caused by short circuits and overloads.
• High Interrupting Rating: 200 kA interrupting rating supports demanding industrial applications.
• Compact Cartridge-Style Design: Fits compatible Class R fuse holders and panels.
• Reliable Equipment Protection: Designed for reliable protection of motors, transformers, HVAC systems, and branch circuits.
• Non-Indicating Construction: Provides straightforward replacement and maintenance.
• Commercial and Industrial Use: Ideal for commercial, industrial, and heavy-duty electrical systems.
  

Technical Specifications

• Part Number: TR7R
  
• Fuse Class: Class R
  
• Fuse Type: Cartridge Style
  
• Indication Type: Non-Indicating
  
• Time Delay: Yes
  
• Current Rating: 7 Amps
  
• Voltage Rating: 250 VAC
  
• Interrupting Rating: 200 kAIC
  
• Dimensions:
  • Height: 2.0 in
  • Width: 0.56 in
  • Depth: 0.56 in

Material Compliance and Certifications

• Class R Applications: Manufactured for use in Class R fuse applications.
• Current-Limiting Design: Current-limiting fuse design supports enhanced equipment protection.
• Commercial and Industrial Compatibility: Suitable for properly rated commercial and industrial electrical systems.
• Industry Standards: Built to meet applicable industry performance and safety standards.
  

Where It Works Best

• The TR7R fuse performs exceptionally well in applications where temporary power surges are common and dependable protection is critical. Common uses include motor control centers, industrial machinery and manufacturing equipment, HVAC systems and compressors, transformers and distribution equipment, commercial electrical panels, branch circuit protection, lighting systems, and control panels and automation equipment. Its time-delay capability makes it especially useful for circuits with motors or inductive loads that draw higher startup currents during normal operation.