Series operationYes (For up to two Power Supplies, external diodes are required.)
Parallel operationYes (Refer to Engineering Data) (For up to two Power Supplies)
Output indicatorYes (LED: Green), lighting from 80% to 90% or more of rated voltage
Withstand voltage
Insulation resistance100 MΩ min. (between all output terminals and all input terminals / PE terminal) at 500 VDC
Ambient operating temperature
Storage temperature–40 to 85°C (with no condensation or icing)
Ambient operating humidity0% to 95% (Storage humidity: 0% to 95%)
Vibration resistance10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions
Shock resistance150 m/s2, 3 times each in ±X, ±Y, and ±Z directions
MTBF135,000 hrs min.
Life expectancy *1010 years min.
Weight700 g max.1,000 g max.
Cooling fanNo
Degree of protectionIP20 by EN / IEC 60529
Harmonic current emissionsConforms to EN 61000-3-2
EMI
EMSConforms to EN 61204-3 high severity levels
Approved Standards *6
Conformed Standards
SEMIConforms to F47-0706 (3-phase, 380 to 480 VAC input)
Note: Refer to page 4 for notes 1 to 13.
3-phase, 400 VAC input *11
3-phase, 400 VAC input *11
3-phase, 400 VAC input28 A typ.29 A typ.
3-phase, 400 VAC input *11
3-phase, 400 VAC input0.05%/°C max.
3-phase, 400 VAC input *11
3-phase, 400 VAC input *11
Conducted Emission
Radiated EmissionConforms to EN 61204-3 Class B EN 55011 Class B
89% typ.89% typ.
3-phase, 380 to 480 VAC (allowable range: 320 to 576 VAC)
2-phase, 380 to 480 VAC (allowable range: 340 to 576 VAC)
450 to 600 VDC (allowable range: 450 to 810 VDC) *8
0.38 A typ.0.69 A typ.
160 mV p-p max. at 20 MHz of bandwidth190 mV p-p max. at 20 MHz of bandwidth
700 ms typ.600 ms typ.
30 ms typ.20 ms typ.
Yes, 130% or higher of rated output voltage, power shut off (shut off the input voltage and turn on
the input again) *5
3.0 kVAC for 1 min. (between all input terminals and output terminals) cutoff current 20 mA
2.5 kVAC for 1 min. (between all input terminals and PE terminal) cutoff current 20 mA
1.0 kVAC for 1 min. (between all output terminals and PE terminal) cutoff current 30 mA
–40 to 70°C (However, only startup is guaranteed for between –40°C to –25°C. (3-phase only))
(Derating is required according to the temperature.) (with no condensation or icing)
Conforms to EN 61204-3 Class B EN 55011 Class B
UL Listed: UL 508 *7
UL Listed: UL 508 *7
EN: EN 50178
Lloyd’s standards *9
ANSI/ISA 12.12.01 *7
SELV (EN 50178), PELV(EN 60204-1, EN 50178)
Safety of Power Transformers (EN 61558-2-16)
EN 50274 for Terminal parts
UL UR: UL 60950-1 (Recognition)
cUR: CSA C22.2 No.60950-1
CSA: CSA C22.2 No.60950-1
EN: EN 50178, EN 60950-1
Lloyd’s standards *9
ANSI/ISA 12.12.01 *7
SELV (EN 60950-1/EN 50178/UL 60950-1)
PELV (EN 60204-1, EN 50178)
Safety of Power Transformers (EN 61558-2-16)
EN 50274 for Terminal parts
2
Power rating480 W960 W (768 W *18)
ItemOutput voltage24 V24 V
Efficiency
Input
Output
Additional
functions
Insulation
Environment
Reliability
Construction
Standards
Voltage range *1
Frequency *150/60 Hz (47 to 63 Hz)
Current
Power factor--
Leakage current 3-phase, 400 VAC input3.5 mA max./1.0 mA typ.3.5 mA max./1.2 mA typ.
Inrush current (for a
cold start at 25°C) *2
Rated output current20 A40 A at 3-phase (32 A at 2-phase)
Boost current24 A48 A at 3-phase (Not possible at 2-phase)
Voltage adjustment range *322.5 to 29.5 VDC (with V.ADJ) (guaranteed)22.5 to 29.5 VDC (with V.ADJ) (guaranteed) *14
Ripple & Noise voltage *4
Input variation influence *130.5% max.
Load variation influence *121.5% max.
Temperature
variation influence
Start up time *2
Hold time *2
Overload protectionYes, automatic reset
Overvoltage protection
Series operationYes (For up to two Power Supplies, external diodes are required.)
Parallel operationYes (Refer to Engineering Data) (For up to two Power Supplies)
Output indicatorYes (LED: Green), lighting from 80% to 90% or more of rated voltage
Withstand voltage
Insulation resistance100 MΩ min. (between all output terminals and all input terminals / PE terminal) at 500 VDC
Ambient operating temperature
Storage temperature–40 to 85°C (with no condensation or icing)
Ambient operating humidity0% to 95% (Storage humidity: 0% to 95%)
Vibration resistance10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions
Shock resistance150 m/s2, 3 times each in ±X, ±Y, and ±Z directions
MTBF135,000 hrs min.
Life expectancy *1010 years min.
Weight1,600 g max.2,700 g max.
Cooling fanNo
Degree of protectionIP20 by EN / IEC 60529
Harmonic current emissionsConforms to EN 61000-3-2 *15
EMI
EMSConforms to EN 61204-3 high severity levels
Approved Standards *6
Conformed Standards
SEMIConforms to F47-0706 (3-phase, 380 to 480 VAC input) *17
3-phase, 400 VAC input *11
3-phase, 400 VAC input *11
3-phase, 400 VAC input28 A typ.
3-phase, 400 VAC input *11
3-phase, 400 VAC input
3-phase, 400 VAC input *11
3-phase, 400 VAC input *11
Conducted Emission
Radiated EmissionConforms to EN 61204-3 Class B EN 55011 Class B *16
91% typ.92% typ.
3-phase, 380 to 480 VAC
(allowable range: 320 to 576 VAC)
2-phase, 380 to 480 VAC
(allowable range: 340 to 576 VAC)
450 to 600 VDC
(allowable range: 450 to 810 VDC) *8
1.2 A typ.2.1 A typ.
130 mV p-p max. at 20 MHz of bandwidth90 mV p-p max. at 20 MHz of bandwidth
0.05%/°C max.
500 ms typ.700 ms typ.
20 ms typ.20 ms typ.
Yes, 130% or higher of rated output voltage, power shut off (shut off the input voltage and turn on
the input again) *5
3.0 kVAC for 1 min. (between all input terminals and output terminals) cutoff current 20 mA
2.5 kVAC for 1 min. (between all input terminals and PE terminal) cutoff current 20 mA
1.0 kVAC for 1 min. (between all output terminals and PE terminal) cutoff current 30 mA
–40 to 70°C (However, only startup is guaranteed for between –40°C to –25°C. (3-phase only))
(Derating is required according to the temperature.) (with no condensation or icing)
Conforms to EN 61204-3 Class B EN 55011 Class B *16
UL Listed: UL 508 *7
UL UR: UL 60950-1 (Recognition)
cUR: CSA C22.2 No.60950-1
CSA: CSA C22.2 No.60950-1
EN: EN 50178, EN 60950-1
Lloyd’s standards
ANSI/ISA 12.12.01 *7
SELV (EN 60950-1/EN 50178/UL 60950-1)
PELV (EN 60204-1, EN 50178)
Safety of Power Transformers (EN 61558-2-16)
EN 50274 for Terminal parts
3-phase, 380 to 480 VAC
(allowable range: 320 to 576 VAC)
2-phase, 380 to 480 VAC
(allowable range: 340 to 576 VAC)
Note: Refer to page 4 for notes 1 to 18.
S8VK-T
3
S8VK-T
*1. Do not use an inverter output for the Power Supply. Inverters with an output frequency of 50/60 Hz are available, but the rise in the internal
temperature of the Power Supply may result in ignition or burning.
*2. For a cold start at 25°C. Refer to Engineering Data on page 7 to 8 for details.
*3. If the output voltage adjuster (V. ADJ) is turned, the voltage will increase by more than 29.5 VDC of the voltage adjustment range.
When adjusting the output voltage, confirm the actual output voltage from the Power Supply and be sure that the load is not damaged.
*4. A characteristic when the ambient operating temperature is between –25 to 70°C.
*5. Refer to Overvoltage Protection on page 8 for the time when input voltage shuts off and input turns on again.
*6. To meet safety standards, the S8VK-T must be protected with an external circuit-breaker or a fuse.
Be sure to use an external circuit-breaker or a fuse. Refer to Precautions for Safe Use on page 13 for details.
*7. The following supplementary Fuse/Circuit Breaker must be installed in accordance with NEC.:
Model FAZ-D5/3-NA, FAZ-D5/3-RT or FAZ-D5/3-DU, EATON INDUSTRIES (AUSTRIA) GMBH (E235139), Model KLKD5, LITTELFUSE INC.
(E10480)
*8. Safety Standards for a DC Input
The following standards apply to a 450 to 600 VDC input: UL 60950-1, EN 50178, EN 60950-1, and Lloyd's standards.
*9. In the case of using side-mounting bracket (S82Y-VK10S, S82YVK20S), Lloyd's Standards are not applicable.
*10. The value is when rated output current is 50% or less, the ambient operating temperature is 40°C or less, standard mounting, and rated input
voltage.
*11. The value is when both rated output voltage and rated output current are satisfied.
*12. 380 to 480 VAC input, in the range of 0 A to the rated output current.
*13. 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.
*14. Use at 26.4 VDC or lower for 2-phase input.
*15. The S8VK-T Power Supply conforms to EN 61000-3-2 under the following conditions for 2-phase input.
480 W: rated output voltage, and 65% or less of rated output current
960 W: rated output voltage, and 45% or less of rated output current
*16. The S8VK-T Power Supply conforms to EMI under the following conditions for 2-phase input.
480 W: Conforms to class B: rated output voltage, and 65% or less of rated output current/
Conforms to class A: rated output voltage, and 65% to 100% of rated output current
960 W: Conforms to class B: rated output voltage, and 45% or less of rated output current/
*17. 480 W: rated output voltage, and 50% or less of rated output current.
*18. When using 2-phase input. Refer to 2-Phase Input Operation For 960 W Model in Precautions for Safe Use on page 16 for details.
Conforms to class A: rated output voltage, and 45% to 100% of rated output current
960 W: rated output voltage, and 92.5% or less of rated output current.
4
Connections
S8VK-T12024 (120 W)
S8VK-T24024 (240 W)
S8VK-T48024 (480 W)
S8VK-T96024 (960 W)
Block Diagrams
S8VK-T
INPUT
INPUT
L1
L2
L3
L1
L2
L3
Rectifier
Rectifier
Noise filter
Noise filter
Overcurrent
detection circuit
Overcurrent
detection circuit
lnrush
current
protection
Drive
control
circuit
lnrush
current
protection
Drive
control
circuit
Smoothing
circuit
Photocoupler
Smoothing
circuit
Photocoupler
Rectifier/
smoothing
circuit
Voltage
detection circuit
Overvoltage
detection circuit
Rectifier/
smoothing
circuit
Voltage
detection circuit
Overvoltage
detection circuit
+V
DC OUTPUT
−V
+V
DC OUTPUT
−V
5
S8VK-T
12
3
5
4
12
3
5
4
6
Note:
A: The output current can use 100% of the rated output current.
B: Overcurrent protection limits the output current to 80% of the rated
output current.
Construction and Nomenclature
Nomenclature
120 W Model240 W Model480 W Model
S8VK-T12024S8VK-T24024S8VK-T48024
3
960 W Model
S8VK-T96024
4
5
12
12
4
5
3
No.NameFunction
1Input terminals (L1), (L2), (L3)Connect the input lines to these terminals. *1
2Protective Earth terminal (PE) / Ground Connect the ground line to this terminal. *2
3DC Output terminals (−V), (+V)Connect the load lines to these terminals.
4Output indicator (DC ON: Green)Lights while a direct current (DC) output is ON.
5Output voltage adjuster (V.ADJ)Use to adjust the voltage.
6Operation Switch *3 *4To operate in parallel or 2-phase input, set the switch to the "B" side. (960 W model only).
*1. For wiring, refer to Wiring in Precautions for Safe Use on page 13.
*2. This is the protective earth terminal specified in the safety standards. Always ground this terminal.
*3. For parallel operation, refer to Parallel Operation in Precautions for Safe Use on page 15.
*4. For 2-phase input, refer to 2-Phase Input Operation For 960 W Model in Precautions for Safe Use on page 16.
6
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