Datasheet

S8FS-C
12
Conditions
Inrush Current, Startup Time, and Output Hold Time
Note: Twice the normal input current will flow for a redundant system.
Sufficiently check the fusing characteristics of fuses and the
operating characteristics of breakers and select fuses and
breakers so that external fuses will not burn out or breakers will
not operate due to inrush current.
Ripple Noise Voltage
The specified standard for the ripple voltage noise was measured with
the following measurement circuit.
Efficiency The value is given for the rated output voltage and rated output current.
Input
Voltage range
Although some inverters give 50/60 Hz as the output frequency, do not use an inverter output as the power
source for the Power Supply. Doing so may result in smoking or burning due to internal temperature
increases in the Power Supply. If you connect a UPS to the input, do not connect one with a square wave
output.
Frequency
Current The value is given for the rated output voltage and rated output current.
Inrush current (for a cold start at 25C) The value is given for a cold start at 25C. Refer to following for details.
Output
Voltage adjustment range
If the output voltage adjuster (V. ADJ) is turned, the voltage will increase by 10% or more over the
voltage adjustment range.
When adjusting the output voltage, confirm the actual output voltage from the Power Supply and be sure
that load is not damaged.
Ripple & Noise voltage
The value is given for the rated output voltage and rated output current.
The value is for an ambient operating temperature of 25C.
Input variation influence
This is the maximum variation in the output voltage when the input voltage is gradually changed within the
allowable input voltage range at the rated output voltage and rated output current.
Load variation influence
This is the value when the output current is changed from 0 A to the rated output current while the input
voltage is within the allowable input voltage.
Startup time
The value is given for the rated output voltage and rated output current.
The value is given for a cold start at 25C. Refer to following for details.
Hold time
The value is given for the rated output voltage and rated output current.
Refer to following for details.
Additional
functions
Overvoltage protection Refer to Overvoltage Protection on page 19 for information on resetting the input power.
Reliability Life expectancy
Refer to Recommended Replacement Periods and Periodic Replacement for Preventive Maintenance on
page 36 for details.
Startup time
Hold time
AC input
voltage
AC input
current
Output
voltage
Inrush current on input application
90%
96.5%
Input ON
Input OFF
S8FS-C
Oscilloscope
frequency
band: 20 MHz
C1
Twisted to
12 turns.
C2
Load
C1: 47
µ
F
C2: 0.1
µ
F
Coaxial cable
+V
−
V