3 Wiring Input/Output Pin
3.1 Wiring input pin
(1) F1:External fuse
¡
Fuse is not built-in on input side. In order to protect the unit, install
the slow-blow type fuse on input side (as shown in Table 3.1).
In the case of using DC input, please use a DC fuse.
Table 3.1(a) Recommended fuse (AC input)
Model
TUHS3 TUHS5 TUHS10 TUHS15 TUHS25
Rated current
2A
2A
2A
2A
3.15A
Table 3.1(b) Recommended fuse (DC input)
Model
TUHS3 TUHS5 TUHS10 TUHS15 TUHS25
Rated current
2A
2A
2A
2A
2A
(2) C1:Input Capacitor(TUHS25)
To comply with conducted noise CISPR22-B, EN55022-B, connect
capacitor C1 which is 0.1μF or more at AC input terminal.
(3) Cbc:Smoothing capacitor
¡
In order to smooth voltage, connect Cbc bBC and -BC.
Recommended capacitance of Cbc is shown in Table3.2.Hold-up
time and load factor is shown in figure 3.1-figure 3.10.
¡
Keep the capacitance within the allowable external capacitance.
¡
Select a capacitor of which the ripple voltage does not exceed
25Vp-p.
¡
When the power supply is operated under -20degC, it may cause
the smoothing voltage unstable due to the characteristic of equiva-
lent series resistor. Please choose the capacitor which has more
than recommended capacitance.
Table 3.2 Input Capacitor C1
No. Model
Rated Input
Voltge
Cbc
Allowable capacitance
range
1
TUHS3
DC400V or more
(AC200Vin)
DC200V or more
(AC100Vin)
18μF
4.7μF to 68μF
2
TUHS5
22μF
10μF to 68μF
3 TUHS10
47μF
22μF to 150μF
4 TUHS15
68μF
33μF to 220μF
5 TUHS25
120μF
47μF to 390μF
0
50
100
150
200
250
300
0
20
40
60
80
100
Hold-up
time[ms]
Hold-up
time[ms]
load factor[%]
load factor[%]
0
200
400
600
800
1000
1200
1400
1600
0
20
40
60
80
100
4.
F
F
F
F
4.
F
F
F
F
Fig.3.1 TUHS3 hold-up time(AC100V) Fig.3.2 TUHS3 hold-up time(AC200V)
0
50
100
150
200
250
300
0
20
40
60
80
100
0
200
400
600
800
1000
1200
1400
1600
0
20
40
60
80
100
Hold-up
time[ms]
Hold-up
time[ms]
load factor[%]
load factor[%]
Fig.3.3 TUHS5 hold-up time(AC100V) Fig.3.4 TUHS5 hold-up time(AC200V)
0
50
100
150
200
250
300
0
20
40
60
80
100
0
200
400
600
800
1000
1200
1400
1600
0
20
40
60
80
100
Hold-up
time[ms]
Hold-up
time[ms]
load factor[%]
load factor[%]
Fig.3.5 TUHS10 hold-up time(AC100V) Fig.3.6 TUHS10 hold-up time(AC200V)
0
50
100
150
200
250
300
0
20
40
60
80
100
0
200
400
600
800
1000
1200
1400
1600
0
20
40
60
80
100
Hold-up
time[ms]
Hold-up
time[ms]
load factor[%
l
]
oad factor[%]
33
47
68
150
68
150
Fig.3.7 TUHS15 hold-up time(AC100V) Fig.3.8 TUHS15 hold-up time(AC200V)
0
50
100
150
200
250
300
0
20
40
60
80
100
0
200
400
600
800
1000
1200
1400
1600
0
20
40
60
80
100
Hold-up
time[ms]
Hold-up
time[ms]
load factor[%]
load factor[%]
Fig.3.9 TUHS25 hold-up time(AC100V) Fig.3.10 TUHS25 hold-up time(AC200V)
(4) R1: Inrush current limiting resistor
¡
Connect resistor R1 between AC input and power supply to limit
inrush current to 50A(TUHS3/5/10/15) and 60A(TUHS25).
Select a resistor which has enough permissible current capability.
¡
The power thermistors are heat-generating components. Pay
attention to the rated operating temperature when using the power
thermistors.
¡
When the power turns ON/OFF repeatedly within a short term,
please keep enough interval to cool down the power supply before
turning it on again.
¡
In this case, recommend using thermistor with thermal resistor in
parallel or inrush current limiting circuit by triac.
(5) SK1: Surge Protective Device
¡
Connect a surge protective device to improve Surge immunity.
AC-DC Power Supplies PCB Mount Type
Instruction Manual
TUHS-15
