Page 48 - Ferraz semiconductor UL
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Semiconductor (A) fuses
Semiconductor (AC) fuses
American Round Fuses
Other American Fuses
A70QS
French Cylindrical
Semiconductor Protection Fuses
D.C. Applications Data
DC Voltage Capabilities vs. Time Constant Peak Arc voltage vs. DC circuit voltage
A70QS6 TO 60 (14F, 14FI) A70QS6 TO 60 (14F, 14FI)
TIME CONSTANT L/R PEAK ARC VOLTAGE
DC CIRCUIT VOLTAGE
DC VOLTAGE CAPABILITY
SEE MELTING-TIME CURRENT DATA FOR MINIMUM
BREAKING CURRENT.
DC Voltage Capabilities vs. Time Constant Peak Arc voltage vs. DC circuit voltage
A70QS25 TO 100 (22F, 22FI) A70QS25 TO 100 (22F, 22FI)
TIME CONSTANT L/R PEAK ARC VOLTAGE
DC CIRCUIT VOLTAGE
DC VOLTAGE CAPABILITY
These curves provide the DC voltage capability of These curves show the peak value Um of the arc voltage
the fuse as a function of circuit time constant. which appears across the fuse link as a function of the ope-
rating voltage U.
(L/R ratio)
SCAC49
12/04
