TR45R - 45 Amp Fuse

TR45R - 45 Amp Fuse

The TR45R Class R Fuse is made for your electrical systems that need reliable protection day in and day out. Rated for 45 amps, this time-delay fuse helps protect the circuits and equipment from overloads and short circuits while still handling the temporary surge that happens when motors or HVAC equipment start up. Instead of opening too quickly during normal startup conditions, it’s designed to allow those brief current spikes to pass, helping reduce unnecessary downtime. Its current-limiting design helps reduce the amount of fault energy flowing through the system during a short circuit, helping protect connected equipment from additional damage. With a 200 kA interrupting rating at 250 VAC, the TR45R is commonly used in commercial and industrial applications where dependable circuit protection matters. The compact cartridge-style body also makes it easier to fit into existing electrical setups without taking up much space. Whether you’re replacing a fuse in a motor control panel or maintaining power distribution equipment, the TR45R offers straightforward, dependable performance for demanding electrical environments.

Key Features and Benefits

• 45 amp Class R fuse for circuit protection: Designed to help protect circuits and connected equipment in commercial and industrial electrical systems.
• Time-delay design: Helps avoid unnecessary fuse openings during equipment startup by allowing temporary surge currents to pass during normal motor or HVAC startup conditions.
• Current-limiting performance: Helps reduce damage during fault conditions by limiting the amount of fault energy flowing through the electrical system.
• Compact cartridge-style body: Makes installation easier in existing electrical setups without taking up much space.
• High interrupting rating: Rated at 200 kA at 250 VAC for dependable protection in demanding electrical environments.
  

Technical Specifications

• Part Number: TR45R
  
• Type: Class R Fuse
  
• Style: Cartridge Style
  
• Indication: Non-Indicating
  
• Time Delay: Yes
  
• Current-Limiting: Yes
  
• Amperage: 45 Amps
  
• A.I.C. Rating: 200 kA @ 250 VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 0.81 in.
  • Depth: 0.81 in.
• Ship Weight: N/A
  

Material Compliance and Certifications

• Dependable Overcurrent Protection: The TR45R fuse is designed for applications that require dependable overcurrent protection and high interrupting capacity.
• Class R Construction: Its Class R construction is commonly used in electrical systems that need reliable protection for branch circuits and connected equipment.
• Installation Verification: Compatibility with specific systems and local electrical codes should always be verified before installation.
  

Where It Works Best

• The TR45R is commonly used in industrial facilities, commercial buildings, motor control systems, HVAC equipment, and electrical distribution panels. It works especially well in systems where temporary startup surges are normal but reliable protection from overloads and short circuits is still necessary.