
PSC
690/700 Volt
SEMICONDUCTOR PROTECTION FUSES
Application Information-All Sizes
Watts Loss vs. % Rated Current
Percent Rated Current (%)
Correction
F
actor
for
W
atts
Loss
Correction factor to determine the watts loss value of a
fuse operating below its rated current
Maximum Arc Volts vs. System Voltage
Working Voltage (AC RMS Volts)
P
eak
Arc
V
oltage
(V
olts)
Determines the peak arc voltage across the fuse terminals as a
function of the applied voltage
Ampere Rating Correction Factor vs. Air Flow Speed
Determines the current carrying capability based on the cool-
ing air speed across the fuse
Clearing I2t vs. Operating Voltage
Working Voltage (AC RMS Volts)
Correction factor to determine the clearing I2t value for a fuse
operating below its rated voltage
Correction
F
actor
Air Speed (m/s)
Correction
F
actor
for
I2
t
D
D 73