What are 3 prong fuses for?

The three prong Micro Blade Fuse is known as a Micro 3 Fuse and is available in current ratings of 5 to 15 Amperes. The dimensions of the Micro 3 Fuse are 14.4mm wide, 18mm tall and 4.2mm thick. The Micro 3 Fuse is designed to protect 2 different output circuits from a single power source.

What is a spade type fuse?

Blade fuses (also called spade or plug-in fuses), with a plastic body and two prongs that fit into sockets, are mostly used in automobiles.

How does a 3 blade fuse work?

The MICRO3™ Fuse has 3 terminals and 2 fuse elements with a common center terminal. Its sub-miniature design meets the need for more circuits to be protected while utilizing less space and its ability to cope with high temperatures in adverse environments makes the MICRO3™ Fuse of recommended choice for protection.

What type of fuse do I have?

Look for “Class G” printed on the fuse. These fuses can be recognized by either their round shaped bodies with or without blades. Look for the wording “One Time Fuse” printed on the fuse. These fuses can be recognized by a removable slotted end cap that can be removed so that the fuse material can be replaced.

What is the difference between ATC and ATO fuses?

The ATC has a fuse element that is closed (hence the “C” in the code) inside the plastic housing, sealing it from the environment to prevent corrosion from developing. The ATO fuse is open on the bottom, exposing the fuse element between the blades.

What does a fuse look like when it is blown?

Look at the fuse wire. If there is a visible gap in the wire or a dark or metallic smear inside the glass then the fuse is blown and needs to be replaced.

What do the letters mean on a fuse?

The number and the A (may be mA) is the amp rating of the fuse. The L denotes that it is a low breaking capacity or glass fuse (H is High breaking capacity and is usually a ceramic package).