5ET 1.25-R

Fuses are commonly used in electrical wiring, mainly due to their protection and safety functionality. Fuses are vital for protecting circuits from damage due to current overload. 5ET 1.25-R is a type of fuse that is used to protect the primary circuit of an electrical system. This article will discuss the 5ET 1.25-R application field and working principle.

The 5ET 1.25-R fuse is mainly used in low voltage applications, such as those in residential and light commercial applications. This type of fuse is designed to protect branch circuits, such as those used for lighting, air conditioning, motors, transformers, and more. It is typically installed in the panel board and can be used in both overhead and underground applications. The fuse is UL listed for both residential and commercial applications, making it a popular choice for many users.

The fuse is rated AC and DC up to 600 Volts, with a current rating of 1.25 Amp. Its interrupting rating is 1.1 kVA. This type of fuse also has a time-delay feature, which delays operation in case of a high-voltage surge or overload. The fuse also features a self-restoring insert and a resettable thermal element, making it a safer and more reliable protection device.

The principle behind the 5ET 1.25-R fuse is based on the property of a fuse wire. Fuse wires are made up of low-melting-point metals that are installed in a protective housing. When the normal operating current of an electrical circuit exceeds the rated level, the fuse wire heats up and melts, creating an open circuit. This opens the circuit, preventing further damage and protecting the components in the circuit from overheating, short circuits, and other potential hazards.

The 5ET 1.25-R fuse has numerous benefits and advantages. Along with its time-delay and self-resetting features, the fuse also has a temperature-compensated design that increases its life. This increases the fuse’s durability and reliability, providing a longer lifespan and improved protection. The fuse also features a visualization window and easily replaceable parts, making it an easy-to-maintain product. Lastly, the fuse has an UL 4248-2 and CSA C22.2 Certified rating, making it a safe and reliable choice for many users.

To summarize, the 5ET 1.25-R fuse is a type of fuse mainly used in low voltage residential and light commercial applications. This type of fuse is designed to protect branch circuits from damage due to current overload. It is UL listed and features a time-delay and self-resetting design, along with other safety and protection features. This type of fuse is safe, reliable, and easy to maintain, making it a popular choice for many users.