Indicators
High speed square body fuses are available with the following
indicators.
Visual indicator
The indicator situated in one end plate is clearly visible as soon as
the fuse has operated. The minimum rated voltage for operating the
indicator is 20 V.
Type T indicator
The indicator is situated on one cover plate with a cover plate tag
to accommodate an auxiliary switch. The minimum rated voltage for
operating the indicator is 20 V. A special low rated voltage indicator
(1.5 V) is available on request.
Type K indicator
The indicator is situated on the fuse body. It is covered by an adapter
for snap-on mounting of a microswitch. The rated operating voltage
of the indicator is 1.5 V. As a matter of safety, the factory mounted
adapter must not be removed from the fuse.
Microswitches
High speed square body fuses with either Type T or K indicators
can be equipped with a microswitch for remote signaling of fuse
operation. All microswitches have one normally open (NO) and one
normally closed (NC) contact.
