170M6793 application field and working principle are closely associated. This special type of fuse is designed for applications which involve the protection of single or multiple phase circuits that use squirrel cage induction motors and other motor control units such as soft starters, variable frequency drives (VFDs) and other related equipment. The 17M6793 is a thermal-magnetic fuse that necessitates the presence of both a temperature component and an overcurrent element. In general, the overcurrent element is made of a metal strip or wire and is designed to melt away when the current reaches a specific amperage limit. The temperature element is typically composed of a bimettalic strip which is pre-formed to operate in the event that the temperature reaches a certain limit. The temperature element acts as a supplemental safeguard and is designed to reduce or cut off the current before it reaches the melting point of the overcurrent component. This type of fuse is needed when working with deeper penetration loads which involve more current and higher temperatures which could be damaging to the system if left unattended or if the current increases too quickly. This special type of fuse is rated at one hundred and twenty amps and is available in a variety of shapes, sizes, and voltage ratings. The fuse can be used in single and three phase systems which involve standard air-filled or oil-filled circuit breakers or any system which involves the protection of control circuits that rely on the operation of induction motors. It can also be used to protect direct currents such as those that rely on the use of transformers, rectifiers, or any other direct current application. In its normal working state, the 170M6793 fuse will be open and do nothing. But once the current amperage reaches its limit, the overcurrent element will begin to melt away, opening the fuse and cutting off the circuit. Simultaneously, the bimetallic element will also reach its limit, and it will bend and break the circuit even more quickly then the overcurrent element. This double safeguard helps to prevent unnecessary damage to the system as a result of either high temperature or current overload. The 170M6793 fuse is an important component in many applications and systems which rely on the use of induction motor control and various direct current systems. This special type of fuse helps to protect those systems by providing a measure of safety in the event of temperatures that exceed the norm or current overloads which can otherwise cause irreversible damage.