J Type Fuse Sizes

What is a class j fuse.

J type fuse sizes.

This short article is a summary of fuse types ratings and characteristics. A class j fuse is a 600 volt ac current limiting fuse that is rated to interrupt a minimum of 200 000 amps. These fuses are delicate. The solar midget fuse is offerred in 10 x 38mm case sizes.

A socket or nut driver is the best option as a wrench can accidentally bridge the gap on the fuse terminals and again that is rarely a good thing to do. Size of upstream fuse need only be twice that of downstream low peak fuses 2 1 ratio. Bussmann s ul class j fuse products extend both our low peak family of products with our lpj sp and lpj spi dual element time delay fuses as well as our limitron line offering fast acting jks fuses. Type fuse holders and can also be installed in holders for class h fuses.

A fuse designed specifically for the protection of photovoltaic pv systems. They can physically and electrically replace class h k5 and other class rk5 fuses. Low peak fuses can reduce. Bolt down fuses like anl and class t types require tools.

Class j fuses are offered in fast acting or time delay versions. A 1 000 volt dc fuse designed specifically for the protection of photovoltaic pv systems. We may also collect personal data such as your name job title company name address email address and telephone number either directly from you or by combining information we collect through other sources. Choosing the right size right type fuse with the correct voltage and current ratings is one of the most important aspects of system sizing.

Class j jls series fuses 600 vac fast acting 1 600 a ampere ratings 1 20 45 90 175 350 3 25 50 100 200 400 6 30 60 110 225 450 10 35 70 125 250 500 description 15 40 80 150 300 600 the ul listed class j jls series fuses provide space saving fast acting overload and short circuit protection for. When you use our website we collect personal data about you and your use of the website through cookies and analytics tools. Bussmann and littelfuse self certify their class j fuses to a 300 000 interrupting rating. Ampere ratings for the j type fuses range from 1 to 600 amps.

The fuses listed are the most common for the size which is always a fast acting fuse. The lpj fuses provide industry leading 300 000 amp interrupting rating at 600vac rms sym and 100ka vdc while delivering a minimum of 10 seconds of 500 rated current ride through performance which. This is an in depth fuse tutorial explaining everything you need to know about fuses and how to size a fuse. Most people get caught up on fuse wire size but once you get the hang of it it shouldn t cause too many headaches.

1ag size type aga 1 a to 30 a 1 4 inch 6 3mm diameter by 5 8 inch 15 9mm long 5 2ag size type agb 0 177 4 5mm diameter by 0 588 14 9mm long frequently replaced with 5mm diameter by 15mm long international size fuse aka 5 x 15mm now. One of the most important aspects of electrical wiring of photovoltaic systems is fusing. Fuses provide integral protection.