Vogele Basic Training Hydraulics & Electrics

E.9.0 Fuses
What is a fuse
The weakest component in an electric circuit is always the first
to be destroyed. The circuit is then broken. This component is usually
the fuse. The task of a fuse is to protect electric devices and circuits.
A fuse never serves to protect humans under ANY CIRCUMSTANCES.
A fuse only protects against an overload (i.e. too much current flowing
through the circuit) or a short circuit (low-ohm connection of two
potentials). A fuse always has a nominal current. If this nominal current
is exceeded, the fuse blows.
What does a fuse consist of
Glass fuse
Automatic
circuit breaker
A fuse essentially consists of a stable housing and a wire that melts
in the event of an overload or a short circuit.
The fuse thus ensures that the circuit is broken safely.
A fuse must never be repaired or bridged!!!!!
There are slow blow fuses (T) and fast blow fuses (F). Slow blow fuses
blow later than fast blow fuses. The housing usually indicates whether
the fuse is a slow blow fuse or a fast blow fuse.
We distinguish between 5 categories:
Super fast (FF), fast (F), medium fast (M), slow (T), super slow (TT)
Car fuse
Fuses used at VÖGELE:
Low-voltage high-power fuses
(heater – 230 V AC)
Car fuses (switch box – 24 V DC)
Glass fuses (heater control)
Low-voltage
high-power fuse