TRS300R - 300 Amp Fuse

TRS300R - 300 Amp Fuse

If you’re working with high-capacity electrical systems, you don’t get much margin for error. The TRS300R is built for exactly that kind of environment—delivering dependable protection where heavy loads and fault currents are part of the job. Rated at 300 amps with a 200 kA interrupting capacity at 600VAC, this Class R fuse is designed to step in fast when it counts, limiting damage and helping keep your equipment online. What makes this fuse especially useful is its time-delay feature. It won’t trip unnecessarily during normal startup surges—like when motors kick on—but it still reacts quickly to real faults. The knife-blade design gives you a solid, secure fit in compatible holders, and the non-indicating style keeps things simple and durable without extra components that can fail over time. It’s a practical, no-nonsense solution for serious electrical protection.

Key Features and Benefits

• Handles up to 200kA interrupting capacity at 600VAC: for high-fault environments
• Time-delay design helps prevent nuisance blowing during equipment startup
• Current-limiting protection reduces potential damage during short circuits
• Knife-blade construction ensures a firm, reliable connection
• Non-indicating design keeps maintenance straightforward
• Built to fit Class R rejection-style fuse holders for proper system matching

Technical Specifications

• Part Number: TRS300R
  
• Amperage: 300A
  
• Voltage Rating: 600VAC
  
• Interrupting Rating: 200 kA
  
• Class: R
  
• Type: Time-Delay, Current-Limiting Fuse
  
• Style: Knife-Blade
  
• Indication: Non-Indicating
  
• Frame Type: TRS
  
• Dimensions:
  • Height: 11.63 in
  • Width: 2.54 in
  • Depth: 2.54 in
• Shipping Weight: Not available
  

Material Compliance and Certifications

• Industry Standards: This fuse is manufactured in line with recognized industry standards for overcurrent protection, including compliance with applicable UL and NEC requirements. That means it’s designed with safety, consistency, and real-world electrical demands in mind—critical for equipment protection in commercial and industrial settings.

Where It Works Best

• The TRS300R fits right into industrial and commercial power systems where reliability isn’t optional. It’s commonly used for motor circuits, transformers, feeders, and distribution panels—especially in setups where equipment draws high inrush current during startup. If you’re dealing with manufacturing equipment, large HVAC systems, or heavy-duty electrical infrastructure, this fuse is right at home.