Inline fuse holders are wire-in, wire-out/line and cargo fuse holders. They are basically a self-enclosed wire harness providing broad application flexibility.This sort of fuse holder can leave both easy fuse replacement and make it harder to access fuses, counting on the goal of the designer and where they're installed.Ever wonder why the in line fuse holder melted?Next HINEW professional inline fuse holder manufacturer to inform you.

First we need to understand how the 40amp inline fuse holder works.

The WindyNation fuse holder, taking the common 40 amp inline fuse holder with fuses are utilized in electrical systems during which the fuse is meant to blow out when the present exceeds the safe limit for the device being protected by the fuse.

It usually consists of a strand of wire inside a ceramic or glass cartridge. Excess current causes the wire to heat up and eventually melt, breaking the circuit. Inline simply means the holder for the fuse is fitted into a cable, instead of inside a bit of kit .

Then we need to understand what 30 amp inline fuse holder used for.

The function of a fuse holder,taking the common 30 amp inline fuse holder, is to integrate fuses safely in electrical circuits, ensure a strong current path (voltage doesn't creep to other components) and supply a way to exchange fuses once they manage overcurrent events as intended.Other fuse holders are used basically the same.

Fuse holder melted:the problem

The fuse holder melted, making dc to dc battery charger unable to charge auxiliary battery. However, the fuse has not blown. Does this mean equipment is faulty and drawing too much current?

Fuse holder melted:the cause

Just so, If the fuse itself has not blown, but the fuse holder melted, it indicates that the fuse holder was making poor contact with the fuse. Loose connections are common with poor quality fuse holders. Because they do not make adequate contact with the fuse, they will allow dirt and mud to urge in between the contact points - leading to drop .

Heating in an circuit is usually caused by current flowing through a resistance. If there's significant resistance within the contact between fuse and fuse holder, a current well below the fuse rating can cause enough heat to melt an inline fuse holder.

Note, this heating of the fuse might not always be immediate. Whilst the initial resistance could also be lower and therefore the initial heating might not be enough to succeed in the fuse freezing point , the heating can cause oxidation of the metal connections, resulting in increased contact resistance.

This accelerates the heating effect until there's an “avalanche” of rapidly increasing heating/increasing resistance, resulting in what may appear to be a sudden failure even a while after the installation.

The simple answer is: if the fuse holder melted, it's thanks to a lost connection, not the facility wires drawing an excessive amount of current.

After reading this, you know your inline fuse holder melt now.We are a fuse holders supplier from China.If you do not understand the place, welcome to consult us!