Dual Element Fuse

As shown in the preceding illustration close sizing of cooper bussmann dual element fuses in the branch.

Dual element fuse.

Bussmann s ul class rk5 fusetron product offering provides energy efficient advanced protection with its dual element time delay construction and is available with optional open fuse indication on select ratings. A dual element fuse is used on motor starting circuits. Bussmann bp frn r 30 30 amp fusetron dual element time delay current limiting class rk5 fuse 250v carded ul listed 2 pack by bussmann 4 6 out of 5 stars 58 10 99 10. Limitron fast acting 600v class j fuses jks 1 60a.

Dual element fuse benefits the use of time delay dual element fuses affords easy selective coordination coordination hardly requires anything more than a routine check of a tabulation of required selectivity ratios. A dual element fuse may contain a metal strip that melts instantly on a short circuit and also contain a low melting solder joint that responds to long term overload of low values compared to a short circuit. Low peak dual element time delay class j fuses 0 60 amp lpj 0 60. This type fuse is also known as a time delay fuse and is used in all single and three phase electric motor starters.

A fuse which has current responsive elements of two different fusing characteristics in series explanation of dual element fuse. A dual element fuse is designed for dealing with in rush current ie starting an electric motor. Operate with a temporary overload. In large fuses current may be divided between multiple strips of metal.

Limitron fast acting 600v class j fuses jks 70 600a. Their construction inside with two current flow paths allow the high current of a motor start for a short interval of time without blowing. Find out information about dual element fuse. Whereas if a single element fuse was used it would have to be rated up to 3 times the actual motor current in order to.

Looking for dual element fuse. Dual element fuses are able to withstand these bursts without inflicting any damage to the motor circuits or the fuse itself. Because of this dual element fuses can be sized significantly closer to the actual motor load. Available in both 250vac and 600vac 200ka rms sym interrupting rating and sizes ranging from 0 to 600 amp.

Your answer 2 a fuse designed to operate at a higher current is a fuse with a higher amperage.