TR125R - 125 Amp Fuse

TR125R - 125 Amp Fuse

The TR125R Class R Fuse is a solid choice for your protecting electrical systems that deal with heavy equipment and demanding power loads every day. Rated for 125 amps and built with a time-delay design, it allows normal startup surges to pass through without shutting everything down unnecessarily. That’s especially helpful for motors, transformers, and HVAC equipment that naturally draw extra current during startup. When a real fault happens, the fuse reacts quickly to help limit damage and protect connected equipment. Its knife-blade style construction gives it a firm, dependable fit in compatible electrical setups, while the compact body makes installation easier in crowded panels or switchgear. With a 200 kA interrupting rating at 250 VAC, the TR125R is made for applications where strong short-circuit protection is important and reliability matters day after day. Whether it’s being used in a manufacturing facility, commercial building, or industrial power system, this fuse is designed to help keep operations running smoothly while helping reduce the risk of costly electrical damage.

Key Features and Benefits

• 125 Amp Class R Fuse: Designed for industrial and commercial applications where dependable overcurrent protection is important.
• Time-Delay Protection: Helps avoid unnecessary shutdowns during startup surges from motors, transformers, and HVAC equipment.
• Current-Limiting Design: Helps reduce damage during fault conditions by reacting quickly to overloads and short circuits.
• High Interrupting Rating: Rated for 200 kA at 250 VAC for strong short-circuit protection in demanding electrical systems.
• Knife-Blade Style Connection: Provides a secure installation fit in compatible electrical setups.
• Compact Construction: Works well in crowded panels, switchgear, and tight electrical spaces.
• Dependable Performance: Built for reliable circuit protection in demanding environments and day-to-day operation.
  

Technical Specifications

• Part Number: TR125R
  
• Type: TR
  
• Amperes: 125A
  
• Interrupting Rating: 200 kA @ 250 VAC
  
• Style: Knife-Blade
  
• Fuse Characteristics: Non-Indicating, Time-Delay, Current-Limiting Class R Fuse
  
• Dimensions:
  • Height: 7.13 in.
  • Width: 1.54 in.
  • Depth: 1.54 in.

Material Compliance and Certifications

• Class R Construction: The TR125R is designed for use in electrical systems that require reliable overcurrent protection and current-limiting performance.
• Commercial and Industrial Applications: Its Class R construction is commonly used in environments where equipment protection and system reliability are essential.
  

Where It Works Best

• The TR125R is commonly used in motor control centers, HVAC systems, industrial machinery, transformers, and commercial distribution equipment. It’s especially useful in applications where equipment experiences temporary inrush currents during startup but still requires strong protection against overloads and short circuits.