9
Operation Ratings
Product discontinuation
S8VS series
Recommended replacement
S8VK-GS series
Derating Curve
120 W (S8VK-G12024)
Note: 1. At less than
90 VAC, the
derating is 2.5%/V
2. For a DC power
input, reduce the
load given in the
above derating curve
by multiplying the
following coefficients.
S8VK-G12024: 0.9
3. Gray shaded area: See
“–40°C Operation
Guarantee Condition”
A. Standard mounting
60°C and over: the
derating is 3.5%/°C
B. Face-up mounting
40°C and over: the
derating is 1.67%/°C
240 W (S8VK-G24024)
Note: 1. At less than 90 VAC, the
derating is 2.5%/V
2. For a DC power input,
reduce the load given in
the above derating curve
by multiplying the following
coefficients.
S8VK-G240: 0.8
3. Gray shaded area: See
“–40°C Operation Guarantee
Condition”
A. Standard mounting
60°C and over: the derating
is 2.5%/°C
B. Face-up mounting
50°C and over: the derating
is 2.5%/°C
Overvoltage Protection
Consider the possibility of an overvoltage and design the system so
that the load will not be subjected to an excessive voltage even if the
feedback circuit in the Power Supply fails. If an excessive voltage that
is approximately 130% of the rated voltage or more is output, the
output voltage is shut OFF. Reset the input power by turning it OFF
for at least three minutes and then turning it back ON again.
The values shown in the above diagram is for reference only.
Note: Do not turn ON the power again until the cause of the
overvoltage has been removed.
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