Datasheet

L-32 Switch Mode Power Supply S8TS
Engineering Data
■ Derating Curves
Note: If there is a derating problem, use forced air-cooling.
The ambient temperature is specified for a point 50 mm below the power supply.
■ Overload Protection
The Power Supply is provided with an overload protection function
that protects the load and the power supply from possible damage by
overcurrent. When the output current rises above 105% min. of the
rated current (100% min. of the rated current for parallel operation),
the protection function is triggered, decreasing the output voltage.
When the output current falls within the rated range, the overload
protection function is automatically cleared.
Note: Do not allow the short-circuited or overcurrent state to continue
for more than 20 s, otherwise it may damage the element.
■ Overvoltage Protection
The Power Supply is provided with an overvoltage protection function
that protects the load and the Power Supply from possible damage
by overvoltage. When an excessive voltage is output, the output volt-
age is shut OFF. Reset the Power Supply by turning it OFF for at
least 1 minute and then turning it back ON again.
24-V Models
12-V and 5-V Models
Note: Do not turn ON the power again until the cause of the overvolt-
age has been removed.
−20 −10 0 10 20 30 40 50 55 60 70
120
100
80
60
40
20
0
−20 −10 0 10 20 30 40 50 60 70
120
100
80
60
40
20
0
−20 −10 0 10 20 30 40 50 60 70
120
100
80
60
40
20
0
20 mm min.
N+1 Redundant System
Parallel Operation and Side-by-side
Mounting
Single Operation with Spaces
between Blocks
Ambient temperature (˚C)
200 V input (side-by-side mounting)
Ambient temperature (˚C)
200 V input
100 V input
Load (%)
100/200-V input
(parallel operation),
100-V input (side-
by-side mounting)
Load (%)
Ambient temperature (˚C)
Load (%)
0 50 100
Output current (%)
Output voltage (V)
0 V
28 V
22 V
Variable range
Rated output
voltage
Overvoltage
protection
operating
Output voltage (V)
0 V
+10%
–10%
Variable range
Overvoltage
protection
operating
Rated output
voltage
Output voltage (V)