Cartridge Fuse, Type Frn-r, 250-volt, 45-amp

Introducing the Bussmann 45A FRN-R Cartridge Heavy-Duty Time Delay Cartridge Fuse, now available at A & R Building Supply in Mountain top, PA. This robust and reliable fuse is designed specifically for motor protection, making it an essential component for anyone working with electrical systems. With its heavy-duty construction and time delay feature, this fuse is perfect for safeguarding motors from burnout caused by overloads or single phasing, ensuring your equipment operates smoothly and efficiently.

• Heavy-Duty Design: Built to withstand the rigors of demanding applications, this fuse is ideal for use in power panel-boards, motor-control centers, combination starters, and machinery disconnects.


• Time Delay Feature: The time delay allows the initial startup surge for typical motors to pass, preventing nuisance tripping while still providing protection against longer, dangerous overloads.


• High Interrupting Rating: With a UL listed Class R 200,000 AIR (amp interrupting rating), this fuse is capable of handling significant electrical loads safely.


• Versatile Compatibility: Suitable for a wide range of applications, this fuse is rated for 250 volts and is designed to fit various electrical setups.


• Easy Installation: The ferrule ends make it simple to install in compatible fuse holders, ensuring a secure and reliable connection.

Imagine the peace of mind you’ll have knowing that your motor is protected from potential damage. Whether you are a professional electrician or a DIY enthusiast in Mountain top, the Bussmann 45A FRN-R cartridge fuse is an indispensable tool for maintaining the integrity of your electrical systems. This fuse not only helps prevent costly repairs but also extends the lifespan of your motor, making it a smart investment for anyone involved in electrical work.



In conclusion, the Bussmann 45A FRN-R Cartridge Heavy-Duty Time Delay Cartridge Fuse is more than just a fuse; it is a critical component for ensuring the safety and efficiency of your electrical systems. Don’t compromise on quality—choose this reliable fuse to protect your motor and equipment. Get yours today at A & R Building Supply in Mountain top, PA, and experience the difference in performance and reliability.