Thermally protected varistors
Thermally protected varistors are a combination of varistors (MOV)
and temperature protection components (thermal fuses). With aging and
Increasing exposure to overvoltages degrades varistors and
the leakage current increases. In addition, leakage currents mean losses and they
corrode grounding systems. If the varistor is in the range of the
Threshold voltage in operation it becomes very hot. This presents a fire hazard. For
maximum protection, a thermal fuse is inserted, which in the event of overtemperature
triggers. This separates the varistor from the rest of the circuit or even
the whole application disconnected from the power supply.
TFV8S Series
VAC: 50V … 510V
Imax: 3.5kA
UTC: 105°CTFMOV10M series
VAC: 50V … 680V
VDC: 500V … 800V
In(8/20µs): 10kA
Imax(8/20µs): 25kATFMOV10S Series
VAC: 17V … 510V
In(8/20µs): 1kA … 3kA
Imax(8/20µs): 2kA … 6kATFV10S Series
VAC: 50V … 510V
Imax: 5kA
UTC: 105°CTFMOV15S Series
VAC: 17V … 510V
In(8/20µs): 1.5kA … 5kA
Imax(8/20µs): 3kA … 10kATFV15S Series
VAC: 50V … 510V
Imax: 10kA
UTC: 105°CTFMOV20K series
VAC: 50V … 750V
In(8/20µs): 15kA … 20kA
Imax(8/20µs): 30kA … 50kATFMOV20M series
VAC: 50V … 750V
VDC: 500V … 1000V
In(8/20µs): 20kA
Imax(8/20µs): 40kATFMOV20S Series
VAC: 17V … 750V
In(8/20µs): 1.5kA … 7.5kA
Imax(8/20µs): 3kA … 15kATFMOV20SxxxL Series
VAC: 30V … 420V
In(8/20µs): 2.5kA … 7.5kA
Imax(8/20µs): 5kA … 15kATFMOV21R2P Series
VAC: 30V … 320V
In(8/20µs): 2 x 2.5kA … 2 x 7.5kA
Imax(8/20µs): 2 x 5kA … 2 x 15kATFMOV21R3P Series
VAC: 30V … 320V
In(8/20µs): 3 x 2.5kA … 3 x 7.5kA
Imax(8/20µs): 3 x 5kA … 3 x 15kATFMOV25D Series
VAC: 17V … 750V
In(8/20µs): 1.5kA … 10kA
Imax(8/20µs): 3kA … 20kATFMOV25M series
VAC: 385V … 680V
VDC: 505V … 900V
Iimp(10/350µs): 6kA … 7.5kA
In(8/20µs): 20kA
Imax(8/20µs): 40kATFMOV25SxxxL Series
VAC: 30V … 420V
In(8/20µs): 4kA … 10kA
Imax(8/20µs): 8kA … 25kATFMOV34S Series
VAC: 30V … 750V
In(8/20µs): 10kA … 20kA
Imax(8/20µs): 20kA … 40kATFMOV34SxxxL Series
VAC: 30V … 420V
In(8/20µs): 10kA … 20kA
Imax(8/20µs): 20kA … 40kATFMOV25S Series
VAC: 17V … 750V
In(8/20µs): 3kA … 10kA
Imax(8/20µs): 6kA … 25kATFMOV40K series
VAC: 50V … 750V
In(8/20µs): 30kA … 40kA
Imax(8/20µs): 60kA … 100kA