Switching Power Supply S8E1
Compact and Economical Switching
Power Supply
Models range from 10 to 50 W
Open-frame and covered types
Wide range of output voltage:
5-, 12-, 15- and 24-V models
UL, CSA approved
3-year warranty
Ordering Information
SWITCHING POWER SUPPLIES
Type Rated input voltage Power ratings Output voltage Output current Part number
Open-frame type 120 VAC 10 W 5V 2.0 A S8E1-01005A
12 V 1.0 A S8E1-01012A
15 V 0.7 A S8E1-01015A
24 V 0.5 A S8E1-01024A
15 W 5V 3.0 A S8E1-01505A
12 V 1.3 A S8E1-01512A
15 V 1.0 A S8E1-01515A
24 V 0.7 A S8E1-01524A
25 W 5V 5.0 A S8E1-02505A
12 V 2.1 A S8E1-02512A
15 V 1.7 A S8E1-02515A
24 V 1.1 A S8E1-02524A
50 W 5V 10.0 A S8E1-05005A
12 V 4.2 A S8E1-05012A
15 V 3.4 A S8E1-05015A
24 V 2.2 A S8E1-05024A
Covered type 120 VAC 10 W 5V 2.0 A S8E1-01005D
12 V 1.0 A S8E1-01012D
15 V 0.7 A S8E1-01015D
24 V 0.5 A S8E1-01024D
15 W 5V 3.0 A S8E1-01505D
12 V 1.3 A S8E1-01512D
15 V 1.0 A S8E1-01515D
24 V 0.7 A S8E1-01524D
25 W 5V 5.0 A S8E1-02505D
12 V 2.1 A S8E1-02512D
15 V 1.7 A S8E1-02515D
24 V 1.1 A S8E1-02524D
50 W 5V 10.0 A S8E1-05005D
12 V 4.2 A S8E1-05012D
15 V 3.4 A S8E1-05015D
24 V 2.2 A S8E1-05024D
S8E1 S8E1
MODEL NUMBER LEGEND
S8E1 -
1 32
1. Power ratings
010: 10 W
015: 15 W
025: 25 W
050: 50 W
2. Output voltage
05: 5 V
12: 12 V
15: 15 V
24: 24 V
3. Configuration
A: Open-frame type, front terminals
D: Covered-type, front terminals
ACCESSORIES (SOLD SEPARATELY)
DIN Rail
Item Length Width Part number
DIN-rail (See
Dimensions
section for details.) 0.5 m (1.64 ft) 7.3 mm (0.29 in) PFP-50N
(
)
1 m (3.28 ft) 7.3 mm (0.29 in) PFP-100N
1 m (3.28 ft) 16 mm (0.63 in) PFP-100N2
Bracket
Item Applicable power supply Part number
Bracket S8E1-
10
or S8E1-
15
S82Y-01N
S8E1-
25
S82Y-03N
S8E1-
50
S82Y-10N
Specifications
Output capacity 10 W 15 W 25 W 50 W
Efficiency (typical) 73% to 83% (depends on the model)
Input
Voltage 120 VAC (85 to 132 V) 110 to 170 VDC
Frequency 47 to 450 Hz
Current (with rated I/O) 0.4 A max. 0.5 A max. 0.7 A max. 1.4 A max.
Leakage current (with rated I/O) 0.5 mA max.
Inrush current (with rated I/O) 25 A max. (at 25°C)
Noise filter Yes
Output
Voltage adjustment range ±5% adjustable with variable resistor (V.ADJ)
Ripple 2% (p-p) max.
Input variation influence 0.4% max. (at 85 to 132 VAC input, 100% load)
Load variation influence 0.8% max. (with rated input, 10% to 100% load)
Temperature variation influence 0.05%/°C max. (with rated input and output)
Rise time 100 ms max. 300 ms max.
Hold time 20 ms min.
Additional functions
Overload protection 105% min. of rated load current (typical), inverted L drop type, automatic reset
Overvoltage protection Yes (5-V output models only)
(This table continues on the next page.)
S8E1 S8E1
Specifications Table -- continued from previous page
Characteristics
Ambient temperature Operating See the derating curve in the
Engineering Data
section.
Ambient temperature Storage -- 20°Cto65
°C(--4
°F to 149°F)
Ambient humidity Operating 25% to 85%
Ambient humidity Storage 20% to 90%
Dielectric strength 2,000 VAC, 50/60 Hz for 1 min. (between all inputs and outputs/GR terminal)
Insulation resistance 100 MΩmin. at 500 VDC (between all outputs and inputs/GR terminal)
Vibration resistance Malfunction: 10 to 55 Hz, 0.75-mm double amplitude (44.1 m/s2, approx. 4.5G) for
2 h each in X, Y, and Z directions
Shock resistance Malfunction: 294 m/s2(approx. 30G), 3 times each in ±X, ±Y, and ±Z directions
Output indicator Green LED
Electromagnetic interference Conforms to FCC class A standards and 1st group of VCCI
Approved standards UL 1012, CSA E.B.1402
Life expectancy 8yrs.min.(40
°C at the rated input with a 50% load)
Weight (covered-type) 200 g max. 240 g max. 320 g max. 440 g max.
Note: Ratings and characteristics are defined at the power supply output terminals.
DC inputs are not included in safety standard approvals.
E
n
g
i
neer
i
n
g
D
ata
Open-frame type
Load (%)
Ambient temperature (
C)
Covered-type
Load (%)
Ambient temperature (
C)
Horizontal Installation
Note: The derating curve depends on the mounting position
of the power supply. The left curve is obtained from a
model mounted in one of the standard positions.
Natural air-cooling
Forced-air cooling
Forced-air
cooling
Natural air-cooling
Mounting Position
Standard (Vertical) Installation
Models with a power rating of 10 or 15 W incorporate a Zener
diode clamp circuit. If the protection circuit is triggered, contact
your OMRON representative for repairs.
Models with a power rating of 25 or 50 W incorporate a shut-off
circuit. If the protection circuit is triggered, turn off the input power
and leave the power supply off for at least one minute before
turning it on again.
OVERVOLTAGE PROTECTION
(5-V OUTPUT MODELS ONLY)
DERATING CURVE
S8E1 S8E1
Output voltage (V)
Output current (%)
Rated voltage
The power supply has an overload protection function that
protects the load and the power supply from possible
damage by overcurrent. When the output current rises above
a set value (105% of the rated output current), 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.
OVERLOAD PROTECTION
Input ON
AC input
voltage
AC input
current
Output
voltage Rise time
Input OFF
Inrush current on input application
Hold time
(20 ms min. at
rated input
voltage)
10 to 25 W: 100 ms max.
50 W: 300 ms max.
(at rated input voltage)
INRUSH CURRENT, RISE TIME AND-
HOLD TIME
O
peration
BLOCK DIAGRAM
10 W, 15 W
+V
-- V
GR
Fuse
(2 A) Noise filter
Inrush current
protection circuit Rectifier
Control
circuit
Overload
detector Photocoupler
Detector
Overvoltage
protection circuit
(See Note.)
Rectifier
Input
DC Output
AC (N)
AC (L)
S8E1 S8E1
25 W
50 W
-- V
GR
Overload
detector
Noise filter
+V
Fuse
(2 A)
Control
circuit
Photocoupler
Photocoupler
Detector
Overvoltage detector
Overvoltage protection
circuit (See Note.)
Inrush current
protection circuit Rectifier
Rectifier
-- V
GR
Overload
detector
Noise filter
Fuse
(3.15A)
Control
circuit
Photocoupler
Detector
Overvoltage protection
circuit (See Note.)
Inrush current
protection circuit Rectifier
Note: Only the S8E1 with an output of 5 V incorporates an overvoltage protection circuit.
Photocoupler
Overvoltage detector
+V
Rectifier and
smoothing circuit
Input
Input
DC Output
DC Output
AC (L)
AC (N)
AC (L)
AC (N)
+V
-- V
+V
-- V
Load
Load
Input
Input
GENERATING OUTPUT VOLTAGE (±)
An output of ±can be generated by using two power supplies
as shown below, because the power supply produces a
floating output.
If operation amplifiers as loads are connected in series,
connect a diode between the positive and negative output
terminals of each power supplies as shown in the illustration
below. Consult your OMRON representative for the
specifications of the diode. No diode is necessary for models
with power ratings of 50 W.
SERIES OPERATION
Only models with power ratings of 50 W allow series
operation.
PARALLEL OPERATION
The output of two S8E1 cannot be combined in parallel.
S8E1 S8E1
Dimensions
Unit: mm (inch)
SWITCHING POWER SUPPLIES
15 W
Open-frame Type/Covered Type
10W
Open-frame Type/Covered Type
8.2
9.5
12 max. 85 (3.35)
69 (2.72)
34
46
24.5
24
28
11
13 69
69
12 20
R1.75
3.5 dia. 3.5
Five, M3 x 8
terminal
screws
Two, M3 holes on the
opposite side
3 max. (covered-type)
Two, M3 holes
75
78
8.2
9.5
3.5
94 (3.70)
30
34
34
69 (2.72)
11
13
R1.753.5 dia.
3max.
(covered-type)
24.5
Two, M3 holes
Five, M3 x
8 terminal
screws
Two, M3 holes on the oppo-
site side
12 max.
59
18 25
25 W
Open-frame Type/Covered Type
50 W
Open-frame Type/Covered Type
Five,
M3 x 8
terminal
screws
Two, M3 holes
on the opposite
side
3max.
(covered-type)
8.2
9.5
3.5
123 (4.84)
35
69
(2.72)
31
35 25
11
13
12 max.
71
100
107
R1.75
3.5 dia.
Two, M3 holes
18 26
3.5
12 max. 161 (6.34) 3max.
(covered-type)
33
37
Five,
M3 x 8
terminal
screws 3 max. (covered-type)
Two, M3 holes 3.5 dia. R1.75
11
13
Two, M3 holes on the opposite side
8.2
9.5 69
(2.72)
140
145
26
37
60 96
18
MOUNTING HOLES
Side Mounting
Bottom Mounting
L1
Two, 3.5 dia. holes, 4mm depth
L3
Two, M3 dia. holes
Back Mounting
L2
Two, 3.5 dia. holes
Output 10 W 15 W 25W 50 W
L1 46 mm
(1.81 in) 59 mm
(2.32 in) 71 mm
(2.80 in) 96 mm
(3.78 in)
L2 69 mm
(2.72 in) 75 mm
(2.95 in) 100 mm
(3.94 in) 140 mm
(5.51 in)
L3 69 mm
(2.72 in) 78 mm
(3.07 in) 107 mm
(4.21 in) 145 mm
(5.71 in)
S8E1 S8E1
DIN-RAIL MOUNTING BRACKET (ORDER SEPARATELY)
Item S82Y-01N S82Y-03N S82Y-10N
Applicable power supply S8E1-
10
S8E1-
15
S8E1-
25
S8E1-
50
Dimensions Power Supply Bracket
PFP-50N,
PFP-100N, or
PFP-100N2
L1
L2
Two, 4.5-dia holes
DIN rail
58
47
47 104
Dimensions: L1 113 mm (4.45) 143 mm (5.63) 185 mm (7.28)
L2 114.8 mm (4.52) 144.8 mm (5.70) 186.8 mm (7.35)
Note: The figures in row L1 are applied if a mounting bracket is attached to the power supply. The figures in row L2 are applied if either
PFP-50N or PFP-100N DIN rail is used. Add 10.5 mm to each figure in the L1 row if PFP-100N2 DIN rail is used.
DIN RAIL (ORDER SEPARATELY)
4.5
15 25 25 25 25
10 10
1,000 (500)
(See Note.)
7.3
35 27
1
15 (5)
(See Note.)
Note: The values shown in parentheses are for the PFP-50N.
PFP-100N/PFP-50N
4.5
15 25 25 25 25 15
10 10
1,000
35 27 24
16
29.2
11.5
PFP-100N2
Installation
1. DC Output Terminals: Connect the load lines to these terminals.
2. Input Terminals: Connect the input lines to these terminals.
Note: A fuse is inserted into the AC (L) side.
3. Ground Terminals: Connect a ground line to this terminal.
4. Output LED Indicator: Lights while a Direct Current (DC) output is ON.
5. V.ADJ Adjuster: It is possible to increase or decrease the output voltage
by 5%.
6. NC Terminals: Leave unconnected.
4
5
1
2
3
+V
-- V
AC (L)
AC (N)
GR
S8E1 S8E1
Precautions
MOUNTING
•Mount the power supply so that air flow takes place around it.
To improve and maintain the reliability, the power supply is
designed to dissipate heat by using natural air flow.
•Mounting the power supply to a metal plate is recommended.
Two or More Power Supplies Side-by-Side
•When mounting two or more power supplies side by side,
allow at least 20 mm (0.79 in) spacing between them, as
shown in the following illustration.
•Forced-air cooling is recommended.
Air
Metal plate
20 mm
Open-Frame and Covered-Type
(A).Side mounting
(B).Bottom mounting (secured with screws from the inside of the
power supply)
Note: This method is not possible with the covered-type.
(C).Back mounting (secured with screws from the back of the
power supply)
Cat. No. GC PS5 7/99 Specifications subject to change without notice. Printed in U.S.A.
OMRON ELECTRONICS, INC.
OneEastCommerceDrive
Schaumburg, IL 60173
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
1-800-55-OMRON
OMRON CANADA, INC.
885 Milner Avenue
Scarborough, Ontario M1B 5V
8
416-286-6465
