170M4358

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170M4358 is a branch circuit rated class RK5 specialty fuse with a current interruption rating of 35 kA.

The 170M4358 is designed to protect circuits and equipment from short circuit and overload current. It is constructed of silver-plated zinc-oxide alloy for unsurpassed performance. It has a single-pole, push-to-reset snap action mechanism with a response time of 10/1000 sec. The response time increases with increasing current.

The 170M4358 is rated for 600 Volts AC or less and is available in four current and voltage ratings as follows: 15A at 125V; 20A at 250V; 25A at 300V; and 30A at 400V. This fuse is perfect for use in branch circuits, motor control panels, lighting and heating systems, and any general purpose applications.

The working principle of the 170M4358 is based on the electrical resistance of the alloy and an element that has low thermal coefficient. When current passes through the fuse, the heat produced during the electric resistance increases and overloads the alloy strip. The temperature of the strip then exceeds the melting point, breaking the electrical circuit and preventing further flow of current to the equipment. After the current interruption, the fuse is held open until it is reset by a switch or another manual intervention.

Due to its unique design, the 170M4358 has become a highly popular electrical device with a growing number of applications, ranging from residential and industrial use to military and aviation applications, due to its low cost, reliability, and excellent performance. It is an ideal choice for protecting circuits and equipment from short circuit and overload currents, while ensuring greater safety.

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