Page 1
Switch Mode Power Supply
S8VT 120/240/480/960 W Models
Natural Cooling Three-phase Power
Supply Range from 5A up to 40A
with Output Voltage of 24VDC
• 3 phase 400 to 500 VAC
• 5, 10, 20 and 40 A; 24 VDC output
• Higher stability, lower ripple and noise level
• Mounts to DIN rail
• Fuses protection included
• Natural ventilation
• UL60950 (CSA22.2-60950), UL508 listing
in addition to the CE mark
• Conform to EN61000-3-2
• Parallel & serial operation possible
Model Number Structure
Model Number Legend
S8VT - 24 E
123
1. Input Voltage
F: 400 to 500 VAC 3-phase
2. Power Rating
120: 120 W
240: 240 W
480: 480 W
960: 960 W
3. Output Voltage
24: 24 V
Ordering Information
List of Models
Input voltage Power rating Output voltage Output current Model number
120 W 24 V 5 A S8VT-F12024E
400 to 500 VAC
3-phase
240 W 24 V 10 A S8VT-F24024E
480 W 24 V 20 A S8VT-F48024E
960 W 24 V 40 A S8VT-F96024E
1
Page 2
Specifications
S8VT
Item
Efficiency (400 VAC FULL LOAD) 86% 90% 91% 91%
Input
Output
Others
*1) UL approval up to 600 VDC
*2) MTBF stands for Mean Time Between Failures, which is calculated according to the probability of accidental device failures,
and indicates reliability of devices.
Nominal Input Voltage F: 400 to 500 VAC
Nominal Input Current 5 A 10 A 20 A 40 A
Voltag e range 340 to 576 V 3AC resp. 480 to 810 VDC
Frequency 50 to 60 Hz
Current (max.)
(Vin = Range min., Pmax)
Power factor (400 VAC FULL
LOAD)
Leakage current (max.) <3.5mA <3.5mA <3.5mA <3.5mA
Inrush current (max.)
(Pmax)
EMI filter 2×10 mH 2×27 mH 2×6.8 mH 2×2.2 mH
Line fuses T2A T3.15A T4A T6.3A
Voltage adjustment range 21.6 to 28.0 VDC min.
Tolerance adjustment
accuracy
Ripple & noise (Pmax.) 100 mV max. (p.p. 0-20 MHz)
Load variation influence ±0.5% max.
Input variation influence ±0.25% max.
Temperature variation
influence
Startup time (max.) 1.3 s 1.3 s 1.3 s 1.3 s
Hold time (min.)
(Vin = 400 VAC)
Protection
Parallel operation Yes (for two units)
Serial operation Yes (for two units)
Indicator Yes (Green LED)
Heat radiation Natural air cooling
Ambient temperature -10 to 70°C (de-rating: 5%/°C for 60 to 70°C)
Temperature power derating 60 to 70°C see diagram
Storage temperature -40 to 85°C
Ambient humidity 10 to 90% noncondensing
Dielectric strength
Insulation resistance 500 Mohm min at 500 VDC, Output - P.E.
Vibration resistance
Shock resistance 150 m/s², 3 times each in ±X, ±Y, ±Z directions
EMC
Approval standards
(AC and DC input)
Life expectancy 10 years (Vin=400-500 VAC 50% of rated output current Ta=40°C)
MTBF *2
Weight 0.71 kg 0.91 kg 1.8 kg 3.3 kg
0.5A 1A 1.5A 3A
0.66 0.66 0.86 0.86
< 30A @ Vin max. < 30A @ Vin max. < 40A @ Vin max. < 30A @ Vin max.
1%
Less than 0.05%/°C
15 ms 15 ms 15 ms 15 ms
- Short circuit protection continuative
- Over load protection
- Over voltage protection
2.5 kVAC Input-PE (for 1 sec.; routine test)
3 kVAC Input-Output on isolation components (transformers) (for 1 sec.; high-pot routine test)
1 kVAC Output-PE (for 1 sec.; routine test).
10 to 55 Hz, 0.375 mm single amplitude for 2 h each in X, Y and Z directions
10 to 150 Hz, 0.35 mm single amplitude for 80 min each in-X, Y and Z directions
EN55011 (EN55022) EN61000-3-2, EN61000-4-2, EN61000-4-3,EN61000-4-4,EN61000-4-5,
EN61000-4-6,EN61000-4-8,EN61000-4-11, EN61204-3
IEC60950-1, EN60950-1 UL60950-1, CSA 22.2 No. 60950-1, UL508 Listed *1, EN50178,
EN60204
> 300.000hrs
2
Page 3
Operation
A
A
A
Block Diagram
S8VT-F
C-PH1
S8VT
Vout+
C-PH2
C-PH3
P.E./Chassis
Input
Line Fuses
RFI filter
Driver
Control
Module
Opto-isolator
Ouput
Voltage
Control
Module
Engineering Data
Definition of Inrush Current, Start up Time and Hold Time
Input ON Input OFF
AC input
voltage
Inrush current input application
Vout-
AC input
current
95%90%
Output
voltage
Start up time Hold up time
Overload Protection
The Power supply is provided with an overload protection function
that protect the load and the power supply from possible damage by
over current. When the output current rises above between 105 to
130% (105 to 120% for the 40 A model) of the rated current, the
protection function is triggered, decreasing the output voltage. When
output current falls within the rated range, the overload protection
function is automatically cleared.
De-rating Curve
P
Pmax
50%
Overvoltage Protection
5 A and 10 A models
If output voltage exceed the rated voltage more than 25% (50% at
maximum) by some reason, then the output voltage will be
automatic limited for safety.
20 A and 40 A models
If output voltage exceed the rated voltage more than 25% (50% at
maximum) by some reason, then the output voltage will be turned
OFF automatically for safety. To restart the S8VT, turn OFF the input
voltage, wait few minutes, then apply the input power again.
60 70°C
For UL and CSA the maximum temperature is 60°C
(70°C for the 20 A model)
3
Page 4
Dimensions and Nomenclature
Note: All dimensions shown are in millimeters.
S8VT-F12024E
695
S8VT
10
7 8
11
130
S8VT-F24024E
S8VT-F48024E
125
2
1
56 9107 8
170
12 3 4
5
4
3
45
45
9
6
136
9.9
130
11
181
9.9
7
10
8
130
S8VT-F96024E
1. AC input L1
2. AC input L2
3. AC input L3
4. P.E. (Protective Earth)
170
1
170
21
5. LED Vout ok
6. Vadj. Trim
7. Vou t +
8. Vou t +
11
181
2
100
4
3
195
181
4
6
5
83 910
7
9.9
130
11
9.9
9. Vout -
10.Vout -
11.DIN-rail clip
4
Page 5
Notice
S8VT
Three phase input operation when one phase is missing
The S8VT will in most cases continue to operate even after the loss
of one phase of the supply. The performance specifications are of
course not guaranteed under these conditions. As the loss of one
phase puts additional stress on some components, the life span of
the unit could be shortened. It is prudent therefore to regularly check
for signs of the following possible conditions.
1. Input terminals wiring open/loose.
2. Incorrect/No voltage on one or more phases of the supply.
3. Abrupt or periodical loss of input voltage.
The power supply needs output derating as in the chart for the
operation on missing phase at the input voltage range of 340 to
576 V. Otherwise, the power supply may deteriorate or be damaged.
In every single application suitability has to be checked.
110
100
90
80
70
60
Load
(%)
50
40
30
20
10
0
-20 -10 0 10 20 30
Missing phase de-rating
40 50 60 70 80
Ta (°C)
S8VT-F12024E S8VT-F24024E
S8VT-F48024E S8VT-F96024E
Note: In two phase operation, the specification for EMC
performance, hold-up time, efficiency and output ripple will no longer
be valid.
Three phase input switch off
In order to switch off the Power Supply completely: All 3 phases need
to be switched off.
Mounting
To improve and maintain the reliability of the Power Supply over a
long period, adequate consideration must be taken to heat radiation.
The S8VT is designed to radiate heat by natural air cooling,
therefore, mount the S8VT so that enough air flow takes place
around the power supply.
If installing S8VTF closely, keep the minimum distance of 20 mm at
60°C ambient.
Generating (±) Output Voltage
An output of ± can be generated as shown below, since the S8VT
has a floating output.
Serial Operation
As shown below, the output voltage from each S8VT can be added.
Types must be the same.
+V
−V
+V
−V
Load
Parallel Operation
As shown below, two S8VT-F (same capacity model) can be
paralleled to boost the output power (current). Set the output
voltages of the Power Supplies to the same value.
Also, make sure that the thickness and the length of all wires
connected to the load are the same to ensure that the wires will have
no voltage drop difference.
Parallel connection is only permissible with ambient temperature
from -10°C to +50°C.
In case of a redundant system or back-up system, use diode to be
connected to output + terminal of all the Power Supplies.
+ V
− V
+ V
− V
Load
+ V
− V
+ V
− V
LoadLoad
5
Page 6
Safety Precautions
Safety Signal words
This document uses the following signal words to mark safety
precautions for the S8VT. These precautions provide important
information for the safe application of the product. You must be sure
to follow the instructions provided with safety signal words.
S8VT
!WARNING
!Caution
Indicates information that, if ignored, could possibly result in loss of life or seriously injury.
Indicates information that, if ignored, could result in relatively serious or minor injury, damage to the product, or faulty
operation.
!WARNING
Be sure to connect the grounding line. Not doing so may result in
electric shock.
!Caution
Do not attempt to disassemble the Power Supply or touch its internal parts while power is being supplied. Doing so may result in
electric shock.
!Caution
Do not touch the S8VT while the power is being supplied or immediately after the power is turned OFF. The case of the Power Supply can be still hot.
Cat. No. M03E-EN-01
6
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
In the interest of product improvement, specifications are subject to change without notice.
Loading...