S505-5-R

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A fuse is an electrical component designed to limit the flow of current in an electrical circuit. In the event of an electrical short circuit, the fuse will “blow,” disconnecting the circuit and preventing catastrophic damage to the system or harm to individuals. The S505-5-R fuse is commonly used to protect UTP copper wire installations in residential and commercial building wiring applications.

The S505-5-R is an UL listed circuit protection device specifically designed for over-current protection. Designed to protect communications and security equipment used in residential, commercial and industrial applications, the S505-5-R is both UL 4248 and UL 4763 Listed for use in up to 600 volts per phase applications. It is designed for use with unshielded twisted pair (UTP) copper wire installation and with telephone line protection.

The S505-5-R has a current rating of 5A and a voltage rating of 250VAC and 30VDC. It comes in two types, a single-pole direct wire-in fuse holder and a panel mount fuse holder. The fuse has a \'T\' configuration, with a long-formed module that can be snapped into place in the S505-5-R fuse holder. The fuse is constructed of ceramic element with an electrical contact point protected by a zinc alloy housing. It is colored blue and is imprinted on the body with the UL listing.

The S505-5-R fuse operates on the principle of thermal expansion. When the electrical current exceeds the rated value, the temperature of the fuse element rises. As the heat is dissipated, the fuse element expands, opening up the contacts and interrupting the circuit. The S505-5-R is designed to limit the maximum amount of current that can flow through the circuit even though the current may continue to rise. This is why, if the current reaches a certain level, the S505-5-R will blow before damage is done.

The S505-5-R fuse is a fast-acting, high quality circuit protection device specifically designed for UTP copper wire installations. Its UL listing makes it ideal for use in residential and commercial building applications. It is designed to limit the maximum amount of current that can flow through the circuit, thus providing effective protection against damaging over-currents. The S505-5-R fuse is a reliable and cost-effective solution for providing circuit protection in residential and commercial applications.

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