Datasheet

CT5.121
C-Series
12V, 8A, TWO-PHASE INPUT
4. DC-INPUT
DC input nom.
DC 600V
DC input range 450-780Vdc continuous operation
Allowed Voltage Line to Earth max. 820Vdc IEC 62103
DC input current typ. 0.24A / 0.14A 450Vdc / 780Vdc, 12V, 8A
Turn-on voltage typ. 370Vdc steady state value
Shut-down voltage typ. 260Vdc steady state value
Fig. 4-1 Wiring for DC Input
Instructions for DC use:
+
-
Load
L1
PE
+
-
Power Supply
AC
DC
Battery
L2
FUSE
FUSE
a) Use a battery or similar DC source.
For other sources contact PULS
b) Connect +pole to L1 and –pole to L2.
c) Use appropriate external fuses in the + and – lines which
are suitable for the DC-voltage.
d) Connect the PE terminal to a earth wire or to the machine
ground.
e) DC-operation is not included in the UL approval.
Additional testing might be necessary.
5. INPUT INRUSH CURRENT
An active inrush limitation circuit limits the input inrush current after turn-on of the input voltage and after short
input voltage interruptions.
The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.
AC 400V AC 480V
Inrush current max. 10A
peak
10A
peak
-25°C to +70°C
typ. 4A
peak
4A
peak
-25°C to +70°C
Inrush energy max. 0.5A
2
s 0.5A
2
s -25°C to +70°C
Fig. 5-1 Input inrush current, typical behavior
1 >
2
2 >
3 >
Output Voltage
Input Voltage
Input Current
20ms / DIV
Input: 400Vac
Output: 12V, 8A
Ambient: 25°C
Upper curve: Input current 2A / DIV
Middle curve: Input voltage 500V / DIV
Lower curve: Output voltage 5V / DIV
Time basis: 20ms / DIV
Jan. 2010 / Rev. 1.0 DS-CT5.121-EN
All parameters are specified at 12V, 8A, 400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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