TR350R - 350 Amp Fuse

TR350R - 350 Amp Fuse

The TR350R is a 350 Amp Class R time-delay fuse designed to provide dependable overcurrent protection for your commercial and industrial electrical systems. Built with a knife-blade style design, this non-indicating, current-limiting fuse helps you protect equipment from damaging overloads and short circuits while allowing temporary inrush currents that commonly occur during motor startup and other demanding applications. With an impressive 200 kA interrupting rating at 250VAC, the TR350R is well suited for installations where high fault current protection is essential.

Its time-delay performance helps you reduce nuisance openings while maintaining reliable circuit protection, making it an excellent choice for protecting motors, transformers, feeders, and other critical electrical equipment. Whether you're performing maintenance, replacing an existing fuse, or supporting a new installation, the TR350R offers the performance and reliability professionals expect in demanding electrical environments.

Key Features and Benefits

• 350 Amp current rating: for high-capacity electrical applications
• 200 kA interrupting rating at 250VAC: for superior fault current protection
• Class R current-limiting fuse: helps reduce damage caused by short circuits
• Time-delay design: allows temporary inrush currents without unnecessary fuse operation
• Knife-blade style construction: for secure installation in compatible fuse holders
• Non-indicating design: for straightforward replacement applications
• Suitable for protecting: motors, transformers, feeders, distribution equipment, and other industrial electrical systems

Technical Specifications

• Part Number: TR350R
• Type: TR Class R Fuse
• Amperage: 350 Amps
• Voltage Rating: 250 VAC
• Interrupting Rating (A.I.C.): 200 kA @ 250 VAC
• Fuse Style: Knife-Blade
• Time Delay: Yes
• Current Limiting: Yes
• Indication: Non-Indicating
• Dimensions:
  • Height: 8.63 in.
  • Width: 2.00 in.
  • Depth: 2.00 in.

Material Compliance and Certifications

• Current-limiting Class R fuse
• Time-delay fuse construction
• Designed for use in compatible Class R fuse applications
• Verify compatibility with your equipment and applicable electrical codes before installation.

Where It Works Best

• The TR350R is an excellent choice for commercial and industrial power distribution systems that require dependable overcurrent protection with time-delay performance. It is commonly used for:
  • Motor circuits with high startup currents
  • Industrial control panels
  • Distribution equipment
  • Transformer protection
  • Feeder circuits
  • Manufacturing facilities
  • Commercial electrical installations
  • Heavy-duty electrical equipment requiring Class R fuse protection
• When reliable performance and high interrupting capacity are important, the TR350R delivers the protection needed to help keep critical electrical systems operating safely and efficiently.