500 mA slow acting fuse

This 500 mA Type T glass fuse can be found, for example, on old Balboa BP2100 control system motherboards.

It is a T-type fuse, which means that it is a slow acting fuse, sometimes called an anti-surge fuse. It is able to tolerate high levels for a short time without short circuiting. Therefore, if a sudden change occurs, this fuse does not blow immediately.

Dimensions
Length: 20 mm
Diameter: 5 mm